see Evolution of mammals automatic Taxobox name Eutheria fossil range Late Jurassic Recent, Fossil range 160 0 image Eomaia scansoria.JPG image caption Fossil specimen of Eomaia scansoria image width 270px authority Thomas Henry Huxley , 1880 subdivision ranks Subgroups subdivision Placentalia Bobolestes Eomaia Montanalestes Murtoilestes Prokennalestes and others Eutheria IPA en ju ri pron Greek ... from China and is dated to the Early Cretaceous period, about ma 125 . Eutheria was introduced ... from other mammals cannot be used in defining Eutheria. The features of Eutheria that distinguish ... 2 cellspacing 0 clade style font size 90 line height 75 label1 Eutheria 1 clade 1 clade 1 Euarchontoglires ... of Eutheria Boreoeutheria , e.g. badger s, rabbits, guinea pig s, dog s, dolphin s Euarchontoglires ... the crown group Placentalia placental mammals . Eutheria also includes now extinct lineages that lie ... caption Fossil record of Cretaceous eutheria ref name JiLuoYuan2002EarliestEutherian image Eutherian ... span style font size 120 font weight 900 color 004080 span Other eutheria Annotation 15 135 Origin br of br eutheria Annotation 5 455 span style background color black ... Metatheria Other Metatheria Marsupial s Eutheria Other Eutheria Placental s clade label1 Cynodont ... 2 Monotreme s 2 clade 1 Metatheria 2 Eutheria div Simplified, non systematic, outline of evolution of eutheria from cynodont therapsid s. ref name JiLuoYuan2002EarliestEutherian br extinct div References wikispecies Eutheria Wikisource1911Enc Monodelphia reflist Further reading Goloboff, P.A. ... br Eutheria bg ca Euteri cs Placent lov de H here S ugetiere nv Biishch id Dah l n g ... ko hr Vi i sisavci id Eutheria it Eutheria jv Eutheria kk ht Mamif plasent ... ja frr Huuger tetjdiarten no Placentale pattedyr nn Placentale pattedyr oc Eutheria pl o yskowce pt Placent rios ro Eutheria rm Placentalia ru simple Eutheria sl Vi ji sesalci ... more details
Taxobox fossil range image image caption regnum Animalia phylum Chordate Chordata classis Mammalia supercohort Theria branch Eutheria familia Zhelestidae genus Borisodon genus authority Archibald & Averianov, 2012 Borisodon is an extinct genus of eutherian s which existed in what is now Kazakhstan during the Turonian age. It was described by J. David Archibald and Alexander Averianov in 2012, as a new genus for the species Sorlestes kara . ref J. David Archibald and Alexander Averianov 2012 . Phylogenetic analysis, taxonomic revision, and dental ontogeny of the Cretaceous Zhelestidae Mammalia Eutheria . Zoological Journal of the Linnean Society 164 2 361 426. doi 10.1111 j.1096 3642.2011.00771.x. ref References reflist External links http paleodb.org cgi bin bridge.pl?a basicTaxonInfo&taxon no 217347 Borisodon at the Paleobiology Database Category Prehistoric mammals ... more details
Taxobox name Asioryctitheria fossil range Early Cretaceous Early Late Cretaceous image Asioryctes nemegtensis.jpg image width 250px image caption Asioryctes nemegtensis skull regnum Animal ia phylum Chordata classis Mammalia subclassis Theria infraclassis Eutheria ordo Asioryctitheria ordo authority Novacek et al., 1997 subdivision ranks Families & Genera subdivision Murtoilestes Prokennalestes Daulestes Asioryctidae Asioryctes Ukhaatherium ? Bulaklestes Kennalestidae Asioryctitheria asian digging beasts is an extinct order of early eutheria ns. Skull structure With the exception of Prokennalestes , these advanced forms lacked a Meckelian groove . Furthermore they were equipped with double rooted Canine tooth canine s, a lower premolar with a reduced or absent metaconid and a more elongated lower premolar than their predecessors. In addition, the entoconid and hypoconulid on the lower molars are untwinned, the entotympanic is non existent, the alisphenoid is enlarged, a Vidian foramen is present as well as a promontorium linked to the paroccipital process via the crista interfenestralis . Further reading Zofia Kielan Jaworowska, Richard L. Cifelli, and Zhe Xi Luo, Mammals from the Age of Dinosaurs Origins, Evolution, and Structure New York Columbia University Press, 2004 , 499 501. External links http home.arcor.de ktdykes basepi.htm MESOZOIC MAMMALS Basal Eutheria Two, an internet directory http www.ingentaconnect.com content tandf slet 2000 00000033 00000004 art00008 A eutherian mammal from the Early Cretaceous of Russia at Ingenta Category Prehistoric mammals of Asia paleo mammal stub ca Asiorictiteri es Asioryctitheria it Asioryctitheria pt Asioryctitheria ... more details
orphan date December 2007 Mesaxonians are a group of mammal s that are form the, not widely accepted, Order biology superorder Mesaxonia . The superorder includes the Perissodactyla perissodactylids , Hyracoidea hyracoids , Proboscidea proboscidians , and sirenia ns, all part of the Class biology infraclass Eutheria . However, this group is not yet published, it s a theory based on the number of digits, teeth, and skull characteristics. External links http www.ucmp.berkeley.edu mammal mesaxonia mesaxonia.html Mesaxonia Category Mammals Category Controversial taxa ... more details
Taxobox name Pyrotheriidae image Pyrotherium romeroi e.jpg image caption The Pyrotheriidae Pyrotherium romeroi with Rhynchippus equinus regnum Animal ia phylum Chordate Chordata classis Mammal ia subclassis Theria infraclassis Eutheria ordo Pyrotheria familia Pyrotheriidae familia authority Florentino Ameghino Ameghino , 1889 subdivision ranks Genus Genera subdivision Pyrotherium Propyrotherium Carlozittelia Gryphodon Proticia Baguatherium Colombitherium Pyrotheriidae is the only family in the order biology order Pyrotheria , provided one does not include the Paleocene genus, Carodnia . These extinct , mastodon like ungulates include the genus genera Baguatherium , Carolozittelia , Colombitherium , Gryphodon , Propyrotherium , Proticia , and Pyrotherium . ref name Salas cite journal author Salas, R., S nchez, J., and Chacaltana, C. year 2006 title A new pre Deseadan pyrothere Mammalia from northern Peru and the wear facets of molariform teeth of Pyrotheria journal Journal of Vertebrate Paleontology volume 26 issue 3 pages 760 769 doi 10.1671 0272 4634 2006 26 760 ANPPMF 2.0.CO 2 ref References reflist refbegin http www.accessscience.com Encyclopedia 5 56 Est 560300 frameset.html?doi Access Science http www.fmnh.helsinki.fi users haaramo Metazoa Deuterostoma Chordata Synapsida Eutheria Meridiungulata Xenungulata.htm Mikko s Phylogeny Archive refend Category South American ungulates paleo mammal stub it Pyrotheriidae ... more details
Taxobox name Oligopithecidae fossil range Late Eocene Early Oligocene regnum Animal ia phylum Chordate Chordata classis Mammal ia ordo Primates subordo Haplorrhini parvordo Catarrhini superfamilia Propliopithecoidea familia Oligopithecidae familia authority Kay & Williams, 1994 subdivision ranks Genus Genera subdivision Proteopithecus Catopithecus Oligopithecus Oligopithecidae is an extinct primate family biology family from the late Eocene of Egypt about 37 million years ago . Its members were probably insectivorous due to their simple molars and cusp arrangement. ref cite journal author Kay, R. F. Ross, C. Williams, B. title Anthropoid Origins journal Science date 1997 02 07 volume 275 issue 5301 pages 797 804 doi 10.1126 science.275.5301.797 pmid 9012340 ref This family split off the lineage of Old World monkey s and ape s sometime after the New World monkey s also split off. ref cite web author Haaramo, M title Mikko s Phylogeny Archive Anthropoidea monkeys and apes url http www.fmnh.helsinki.fi users haaramo metazoa Deuterostoma Chordata Synapsida Eutheria Primates anthropoidea.htm Oligopithecidae accessdate 2007 11 12 ref References reflist External links http www.fmnh.helsinki.fi users haaramo metazoa Deuterostoma Chordata Synapsida Eutheria Primates Propliopithecoidea Oligopithecidae.htm Mikko s Phylogeny Archive Oligopithecidae Category Prehistoric primates Category Eocene mammals zh ... more details
Unreferenced stub type animal auto yes date December 2009 Taxobox name Dipodoidea fossil range Early Eocene Recent image Wuestenspringmaus painting.jpg image width 200px image caption Jaculus jaculus regnum Animal ia phylum Chordate Chordata classis Mammal ia subclassis Eutheria ordo Rodent ia subordo Myomorpha superfamilia Dipodoidea superfamilia authority Johann Fischer von Waldheim Fischer de Waldheim , 1817 Dipodoidea is a Taxonomic rank superfamily of rodent s that includes Jumping mice and Jerboa s. Rodents Category Rodents Rodent stub uk ... more details
italictitle Unreferenced date August 2008 Taxobox fossil range Early to Middle Eocene image Ailuravus macrurus.JPG image caption Ailuravus macrurus and Strigogyps sapea regnum Animalia phylum Chordata classis Mammal ia subclassis Eutheria unranked superordo Euarchontoglires superordo Glires ordo Rodent ia familia Ischyromyidae subfamilia Ailuravinae genus Ailuravus genus authority R timeyer, 1891 species A. macrurus binomial Ailuravus macrurus File Ailuravus.jpg thumb left Ailuravus macrurus skeleton Ailuravus macrurus Big tailed Cat ancestor was a primitive, squirrel like rodent, one of the earliest known rodents, from the Messel pit Lagerst tte , in Germany . It lived during the Eocene period of Europe, in forests, and may have been arboreal. Category Eocene mammals Category Prehistoric rodents Category Rodents paleo rodent stub ... more details
Taxobox name Alopecocyon status fossil fossil range mid Miocene regnum Animal ia phylum Chordate Chordata classis Mammal ia subclassis Eutheria superordo Laurasiatheria ordo Carnivora subordo Caniformia superfamilia Musteloidea familia Ailuridae subfamilia Simocyoninae genus Alopecocyon species A. leardi binomial Alopecocyon leardi binomial authority Camp, 1940 Alopecocyon was a small relative of the modern Red Panda . It weighed only about 11 lbs 5 kg . It was closely related to Simocyon , a larger member of its group. Its fossils have been found in France , Poland , and Slovakia . paleo carnivora stub Category Prehistoric carnivorans Category Miocene mammals ... more details
Orphan date October 2008 Taxobox name Leptobos fossil range Pleistocene image Leptobos.jpg image width 250px image caption Leptobos etruscus lower jaw and silhouette regnum Animal ia phylum Chordata classis Mammal ia ordo Artiodactyla familia Bovidae subfamilia Bovinae genus Leptobos genus authority R timeyer , 1878 species L. falconeri L. stenometopon L. syrticus Leptobos is a genus of large Pleistocene bovid found in Europe and Asia . External links http www.helsinki.fi mhaaramo metazoa deuterostoma chordata synapsida eutheria artiodactyla bovioidea boselaphini.html http paleodb.org cgi bin bridge.pl Category Prehistoric bovids Category Pleistocene mammals paleo eventoedungulate stub fr Leptobos ... more details
Orphan date May 2010 Taxobox fossil range regnum Animalia phylum Chordate Chordata classis Mammal ia subclassis Eutheria ordo Cetacea subordo Odontoceti superfamilia Platanistoidea familia Lipotidae genus Parapontoporia binomial authority Barnes 1984 subdivision ranks species subdivision P. pacifica P. sternbergi P. wilsoni Parapontoporia is an extinct genus of dolphin from the Pliocene epoch which contains three species. ref TPBDB http paleodb.org cgi bin bridge.pl?action checkTaxonInfo&taxon no 36795&is real user 1 The Paleobiology Database ref References Reflist http www.sdnhm.org exhibits mystery fg dolphin.html SDNHM Fossil Mysteries Field Guide Long snouted Dolphin Portal Palaeontology Category Dolphins paleo whale stub ... more details
Unreferenced date February 2009 Taxobox name Ashoroa fossil range image image width image caption regnum Animal ia phylum Chordate Chordata classis Mammal ia infraclassis Eutheria superordo Afrotheria ordo Desmostylia familia Palaeoparadoxiidae genus Ashoroa genus authority Inuzuka, 2000 species A. laticosta binomial Ashoroa laticosta binomial authority Inuzuka, 2000 Ashoroa is an extinct genus of Desmostylia . Fossils for Ashoroa came from Japan and were dated from the late Oligocene. Category Desmostylians Paleo mammal stub portal Paleontology ... more details
Automatic taxobox fossil range Eocene image Darwinius masillae PMO 214.214.jpg image caption Darwinius Darwinius masillae regnum Animal ia taxon Cercamoniinae subdivision ranks Genus Genera subdivision See text Cercamoniinae is a family biology subfamily within the extinct primate family Notharctidae . Classification Family Notharctidae Subfamily Cercamoniinae Genus Anchomomys Genus Buxella Genus Darwinius Genus Donrussellia Genus Europolemur Genus Mahgarita Genus Panobius Genus Periconodon Genus Pronycticebus No refs cited as yet References reflist External links http www.fmnh.helsinki.fi users haaramo Metazoa Deuterostoma Chordata Synapsida Eutheria Primates Strepsirrhini.htm Mikko s Phylogeny Archive Category Prehistoric prosimians ca Cercamon es Cercamoniinae hu Cercamoniinae pt Cercamoniinae ... more details
Taxobox name Guilestes fossil range Fossil range Late Eocene Oligocene regnum Animal ia phylum Chordate Chordata classis Mammalia infraclassis Eutheria superordo Laurasiatheria ordo Mesonychia familia Mesonychidae genus Guilestes subdivision ranks Species subdivision G. acares Guilestes is a mesonychidae mesonychid that lived during the Eocene in south China . Species Genus Guilestes Guilestes acares External links http organismnames.com details.htm?lsid 72500 Orginism Origins http www.npl.utexas.edu vpl databases index.php?mode search&action search&searchtype &locality Yongle Basin Fossil Finder Category Mesonychids Category Paleocene mammals Category Eocene mammals Category Eocene extinctions paleo mammal stub ca Guilestes es Guilestes ... more details
Italic title Taxobox name Sahnitherium fossil range Late Cretaceous , fossilrange Maastrichtian regnum Animal ia phylum Chordate Chordata classis Mammal ia infraclassis Eutheria superordo ? Euarchontoglires unranked familia ? Euarchonta genus Sahnitherium genus authority Rana & Wilson, 2003 in paleontology 2003 subdivision ranks Species subdivision S. rangapurensis small Rana & Wilson, 2003 type species type small Sahnitherium is a possible basal phylogenetics basal Euarchontan from the Maastrichtian of the Intertrappean Beds of Andhra Pradesh , India . It may be closely related to Deccanolestes . The holotype is an upper molar, and it is the only specimen of Sahnitherium . ref http home.arcor.de ktdykes basepi.htm ref References Reflist Categories Category Extinct mammals Category Prehistoric mammals Category Cretaceous mammals paleo mammal stub portal Paleontology ... more details
Taxobox name Carpolestids fossil range Middle Paleocene Early Eocene image CarpolestesCL.png image caption Carpolestes simpsoni regnum Animal ia phylum Chordate Chordata classis Mammal ia infraclassis Eutheria superordo Euarchontoglires ordo Plesiadapiformes familia Carpolestidae familia authority Simpson name Simpson , 1935 subdivision ranks Genus Genera subdivision Parvocristes br Elphidotarsius br Carpodaptes br Carpolestes br Carpomegodon Carpolestidae is a family of primate like Plesiadapiformes that were prevalent in North America and Asia from the mid Paleocene through the early Eocene . Typically, they are characterized by two large upper posterior premolar s and one large lower posterior premolar. They weighed about 20 150g, and were about the size of a mouse . Though they come from the order, Plesiadapiformes, that may have given rise to the primate order, carpolestids are too specialized and derived to be ancestors of primates. Historically, the almost twenty species included within the family were thought to have given rise to each other over time in a linear and straightforward manner. Still today it is widely assumed that Elphidotarsius from the mid to late Paleocene gave rise to Carpodaptes which lived in the late Paleocene and subsequently gave rise to Carpolestes from the early Eocene. As a result, they have been used as biostratigraphic indicators in a variety of paleontological digs. However, the phylogenetic picture has been complicated by the discovery in Asia of both ancestral and derived carpolestids in the same stratigraphic layer. References Fleagle, J. G. 1999. Primate Adaptation and Evolution. San Diego, Academic Press. http www.fmnh.helsinki.fi users haaramo Metazoa Deuterostoma Chordata Synapsida Eutheria Plesiadapiformes Carpolestidae.htm Mikko s Phylogeny Archive Category Plesiadapiformes ca Carpol stid es Carpolestidae pt Carpolestidae ... more details
Italic title Taxobox name Acristatherium fossil range fossil range Aptian regnum Animal ia phylum Chordate Chordata classis Mammal ia subclassis Eutheria genus Acristatherium genus authority Hu et al. , 2010 in paleontology 2010 species A. yanensis binomial Acristatherium yanensis binomial authority Hu et al. , 2010 Acristatherium yanensis is an extinct basal eutheria n from the Early Cretaceous early Aptian , approximately Ma 123 Lujiatun Bed of the Yixian Formation . ref name acristatherium cite journal author Yaoming Hu, Jin Meng, Chuankui Li & Yuanqing Wang year 2010 chapter New basal eutherian mammal from the Early Cretaceous Jehol biota, Liaoning, China journal Proceedings of the Royal Society B volume 277 issue 1679 pages 229 236 title Recent advances in Chinese palaeontology editor Xing Xu, Zhe Xi Luo & Jia Yu Rong doi 10.1098 rspb.2009.0203 pmid 19419990 pmc 2842663 url http rspb.royalsocietypublishing.org content early 2009 05 01 rspb.2009.0203.full.pdf format Portable Document Format PDF ref It was described on the basis of a single specimen holotype from Beipiao , Liaoning , China by Yaoming Hu, Jin Meng, Chuankui Li and Yuanqing Wang in 2010. ref name acristatherium The specimen comprises a partial skull , convert 25 mm long. It appears to possess a vestigiality vestige of a septomaxilla , a feature only otherwise seen in non mammalian therapsid s. ref name acristatherium References reflist Category Cretaceous mammals Category Prehistoric mammals of Asia Category Fossil taxa described in 2010 paleo mammal stub cretaceous stub pl Acristatherium ru uk ... more details
Italictitle Taxobox name Montanalestes fossil range Early Cretaceous image image width image caption regnum Animal ia phylum Chordata classis Mammal ia subclassis Theria infraclassis Eutheria unranked familia Molar tooth Tribosphenic molar Tribosphenida genus Montanalestes genus authority Harvnb Cifelli 1999 subdivision ranks Species subdivision M. keeblerorum small Cifelli, 1999 Type species type small Montanalestes is an extinct mammal known from the Cretaceous in North America . Classification Known from only six fossil teeth, Montanalestes is an example of the less well preserved early eutherians found on the northern hemisphere, apparently more closely related to later eutherians than Prokennalestes , and Murtoilestes . ref Harvnb Archibald 2003 ref Clade 1 Clade style white space nowrap label1 Metatheria 1 Clade 1 Sinodelphys Sinodelphys szalayi 2 Cenozoic metatherian label2 Eutheria 2 Clade 1 Juramaia Juramaia sinensis 2 Montanalestes keeblerorum 3 Clade 1 Murtoilestes Murtoilestes abramovi 2 Eomaia Eomaia scansoria 3 Prokennalestes Prokennalestes trofimovi 4 Cenozoic placentalia Notes Reflist References Cite journal ref harv last Archibald first J. David title Timing and biogeography of the eutherian radiation fossils and molecules compared journal Molecular Phylogenetics and Evolution volume 28 year 2003 pages 350 359 doi 10.1016 S1055 7903 03 00034 4 url http www.bio.sdsu.edu faculty archibald Archibald03MPE28p350.pdf accessdate February 2012 Cite journal ref harv last Cifelli first Richard L. title Tribosphenic mammal from the North American Early Cretaceous journal Nature year 1999 volume 401 issue 6751 pages 363 366 pmid 16862109 Category Cretaceous mammals ca Montanalestes es Montanalestes it Montanalestes pl Montanalestes ru ... more details
Taxobox fossil range image image caption regnum Animal ia phylum Chordate Chordata classis Mammal ia unranked ordo Theria unranked familia Eutheria familia Adapisoriculidae genus Bustylus genus authority Gheerbrandt & Russell, 1991 Bustylus is an extinct genus of eutherian s in the family Adapisoriculidae . It was described by Emmanuel Gheerbrandt and Russell in 1991, and the type species is B. cernaysi , described from the late Paleocene of Cernay dn date March 2012 , France from which the Specific name zoology species epithet was derived , and possibly also from Walbeck dn date March 2012 , Germany . ref name Belgianadapisoriculids cite journal authors Eric De Bast, Bernard Sig and Thierry Smith year 2012 title Diversity of the adapisoriculid mammals from the early Palaeocene of Hainin, Belgium url http app.pan.pl article item app20100115.html journal Acta Palaeontologica Polonica volume issue in press pages doi 10.4202 app.2010.0115 ref Gheerbrandt later redescribed the species Peradectes marandati Crochet and Sig , 1983 as a species of Bustylus . ref Bustylus Eutheria, Adapisoriculidae and the absence of ascertained marsupials in the Palaeocene of Europe by Emmanuel Gheerbrant, 1991. DOI 10.1111 j.1365 3121.1991.tb00200.x ref A third species, B. folieae , was described from the early Paleocene of Belgium by Eric De Bast, Bernard Sig and Thierry Smith in 2012. B. folieae was named in honour of Dr. Annelise Folie. ref name Belgianadapisoriculids Species Bustylus cernaysi small Gheerbrandt & Russell, 1991 small Bustylus marandati small Crochet & Sig , 1983 small Bustylus folieae small De Bast et al., 2012 small References Reflist Category Prehistoric mammals ... more details
The class Mammalia mammal s is divided into two subclasses based on reproductive techniques egg laying mammals monotreme s and mammals which give live birth theria ns . The latter subclass is divided into two infraclasses pouched mammals marsupial s and placental mammals eutheria ns . This list is, as yet, incomplete. However for reasons of space, it has been broken into two sections List of placental mammals List of monotremes and marsupials non placental mammals See also List of mammal genera Lists of animals List of mammalogists List of regional mammals lists Category Mammals Category Lists of mammals nv Bidi Daazdo g d Da a t o g a k daasdzoh et Imetajate loend fa ko nl Lijst van zoogdieren fi Luettelo nis kk ist yi zh ... more details
Orphan date February 2009 Italictitle Taxobox regnum Animalia phylum Chordata classis Mammalia subclassis Theria infraclassis Eutheria genus Horolodectes species H. sunae Horolodectes sunae is a long extinct eutherian mammal species of uncertain taxonomic position, recently discovered in Paleocene formations in northern Alberta , Canada . Its name means hourglass biter in Greek, because of the shape of its teeth. References cite journal author Scott C.S, Webb M.W. and Fox R.C. year 2005 title Horolodectes sunae an enigmatic mammal from the Late Paleocene of Alberta, Canada journal Journal of Paleontology pages 1009 1025 http www.bioone.org perlserv ?request get abstract&doi 10.1666 2F0022 3360 2006 80 5B1009 3AHSAEMF 5D2.0.CO 3B2 abstract External links http www.theglobeandmail.com servlet story RTGAM.20061016.wxmammal17 BNStory Science home Globe and Mail New critter solves ancient puzzle http data.gbif.org species 16406601 Global Biodiversity Information Facility Category Paleocene mammals Category Prehistoric mammals of North America paleo mammal stub ... more details
Taxobox name Pliomys fossil range regnum Animal ia phylum Chordata classis Mammal ia ordo Rodent ia familia Cricetidae subfamilia Arvicolinae tribus Pliomyini genus Pliomys genus authority M hely, 1914 subdivision ranks Species subdivision see text Pliomys is an extinct genus of forest voles , subfamily Arvicolinae , tribe Pliomyini Musser and Carleton, 2005 . One member is the extinct species Pliomys episcopalis . The genus was described by M hely in 1914, and is paraphyly paraphyletic with respect to Dinaromys ref cite web title Mikko s Phylogeny Archive url http www.fmnh.helsinki.fi users haaramo Metazoa Deuterostoma Chordata Synapsida Eutheria Rodentia Myomorpha Clethrionomyini.htm accessdate 2007 09 02 ref . References references Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894 1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore. Category Voles and lemmings Category Prehistoric rodents Arvicolinae stub paleo rodent stub ... more details
unreferenced date February 2009 Taxobox name Carodnia fossil range Paleocene image Carodnia vieirai.JPG image caption Carodnia vieirai regnum Animal ia phylum Chordate Chordata classis Mammal ia subclassis Theria infraclassis Eutheria superordo Meridiungulata ordo Xenungulata familia Carodniidae genus Carodnia species C. vieirai binomial Carodnia vieirai Carodnia vieirai is an extinct Meridiungulata meridiungulate mammal from the Paleocene of South America . It is related to, and possibly gave rise to the order biology order Pyrotheria , into which some experts also place Carodnia . In life, it would have been a tapir sized animal. It bore strong resemblances to both some condylarth s and to dinocerata ns, although without tusks or ossicone s. Category Paleocene mammals Category South American ungulates ca Carodnia es Carodnia pl Carodnia pt Carodnia vieirai ... more details
The pluriblast is a Pluripotency pluripotent population of Cell biology cells in the early mammal ian conceptus that is distinct from the trophoblast , and gives rise to the germ layer s of the embryo proper , as well as extraembryonic endoderm and extraembryonic mesoderm . Both the pluriblast and trophoblast arise from the Totipotency totipotent cells of the early conceptus. By definition, the pluriblast does not give rise to trophoblast cells during normal development, although it may retain this potential under experimental conditions. In most eutheria n mammals the pluriblast is termed the inner cell mass , as it forms a mass of cells within the fluid filled blastocyst , bounded by the trophoblast. However in metatherian marsupial mammals, and indeed in a small number of eutherian mammals, the pluriblast forms part of the blastocyst wall and no structure exists that can be described as an inner cell mass. Inner cell mass is thus a morphological term peculiar to the majority of eutherian mammals, whereas pluriblast is a functional term more widely applicable to conserved aspects of mammalian development. References Johnson MH and Selwood L 1996 . Nomenclature of early development in mammals. Reproduction, Fertility and Development. 8 759 764. Category Developmental biology ... more details
Taxobox name Raphictis regnum Animal ia phylum Chordate Chordata classis Mammal ia ordo Carnivora familia Viverravidae subfamilia Didymictinae genus Raphictis genus authority Gingerich & Winkler, 1985 species R. gausion Raphictis is an extinct genus of Didymictidae . It was first named by P. D. Gingerich and D. A. Winkler in 1985, and contains one species R. gausion . References reflist cite journal last1 Gingerich first1 P.D. last2 Winkler first2 D.A. year 1985 title Systematics of paleocene viverravidae mammalia, carnivora in the Bighorn Basin and Clarks Fork Basin, Wyoming. id hdl 2027.42 48525 journal Contributions from the Museum of Paleontology, University of Michigan volume 27 issue pages 87 128 http paleodb.org cgi bin bridge.pl?action checkTaxonInfo&taxon no 40977 paleodb.org http zipcodezoo.com Key Raphictis Genus.asp zipcodezoo.com http www.helsinki.fi mhaaramo metazoa deuterostoma chordata synapsida eutheria carnivora viverravidae.html Mike s Phylogeny Archive http taxonomicon.taxonomy.nl TaxonTree.aspx?id 657032 taxonomicon.taxonomy.nl Category Viverravids paleo mammal stub ... more details
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