Asioryctitheria

Asioryctitheria Temporal range: 109–77 Ma PreꞒ Ꞓ O S D C P T J K Pg N Albian–Campanian[1]
Asioryctes nemegtensis skull
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Subclass:	Theria
Infraclass:	Eutheria
Order:	†Asioryctitheria Novacek et al., 1997
Genera
Asioryctes Kennalestes Sasayamamylos Ukhaatherium

Asioryctitheria ("Asian digging beasts") is an extinct order of early eutherians.

Skull structure

With the exception of Prokennalestes, these advanced forms lacked a Meckelian groove. Furthermore, they were equipped with double-rooted canines, 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.

Classification

Asioryctitheria contains at least four genera and two families.^[2][3]

• Sasayamamylos kawaii Kusuhashi et al. 2013^{[citation needed]}
• Kennalestidae Kielan-Jaworowska 1981
  • Kennalestes gobiensis Kielan-Jaworowska 1981
• Asioryctidae Szalay 1977
  • Asioryctes nemegetensis Kielan-Jaworowska 1975
  • Ukhaatherium nesovi Novacek et al. 1997

References

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

• MESOZOIC MAMMALS; Basal Eutheria Two, an internet directory
• A eutherian mammal from the Early Cretaceous of Russia at Ingenta

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Eutheria

Kingdom: Animalia Phylum: Chordata Class: Mammalia Subclass: Theria
Synapsida see Synapsida Cynodontia see Cynodontia Mammalia see Mammalia Eutheria see below↓ Eutheria

Eutheria	†Acristatherium? †Ambolestes? †Bobolestes? †Cokotherium? †Durlstodon †Durlstotherium †Endotherium †Eomaia? †Hovurlestes †Hyotheridium? †Indoclemensia †Juramaia? †Montanalestes? †Murtoilestes? †Prokennalestes? †Sinodelphys? †Adapisoriculidae Adapisoriculus Afrodon Bustylus Deccanolestes? Garatherium Namibiodon Remiculus? Sahnitherium? Wyonycteris? †Asioryctitheria Asioryctes Bulaklestes Daulestes Kennalestes Sasayamamylos Uchkudukodon Ukhaatherium †Cimolestidae Acmeodon Alveugena Ambilestes Avunculus Bagalestes Batodon? Betonnia Chacopterygus Cimolestes Didelphodus Gelastops Ilerdoryctes Maelestes? Paleotomus Procerberus Protentomodon Puercolestes Scollardius †Didymoconidae Archaeoryctes Ardynictis Didymoconus Hunanictis Kennatherium Zeuctherium †Horolodectidae Ferrequitherium Horolodectes †Leptictida Gypsonictops Pseudorhyncocyonidae Diaphyodectes Leptictidium Phakodon Pseudorhyncocyon Leptictidae Amphigyion Blacktops Gallolestes Ictopidium Labes Lainodon Leptictis Leptonysson Megaleptictis Myrmecoboides Ongghonia Palaeictops Praolestes Prodiacodon Protictops Wania †Palaeoryctidae Aaptoryctes Aboletylestes Eoryctes Lainoryctes Naranius Nuryctes Ottoryctes Palaeoryctes Pararyctes Pinoryctes Tsaganius †Pantolesta Paroxyclaenidae Dulcidon Euhookeria Fratrodon Kiinkerishella Kopidodon Merialus Paraspaniella Paroxyclaenus Pugiodens Sororodon Spaniella Vulpavoides Pantolestidae Amaramnis Aphronorus Bessoecetor Bisonalveus Bogdia Bouffinomus Buxolestes Chadronia Coriphagus Cryptopithecus Dyspterna Galethylax Gobipithecus Kochictis Oboia Pagonomus Palaeosinopa Pantolestes Pentacodon Thelysia Todralestes †Taeniodonta Alveugena Onychodectes Schowalteria Conoryctidae Conoryctella Conoryctes Huerfanodon Stylinodontidae Chungchienia Ectoganus Psittacotherium Stylinodon Wortmania †Tillodontia Adapidium Azygonyx Basalina Benaius Dysnoetodon Esthonyx Franchaius Higotherium Interogale Kuanchuanius Lofochaius Megalesthonyx Meiostylodon Plesiesthonyx Plethorodon Simplodon Tillodon Trogosus Yuesthonyx †Zalambdalestidae Alymlestes Anchilestes Barunlestes Beleutinus Kulbeckia Zalambdalestes Zhangolestes Zofialestes †Zhelestidae Alostera? Aspanlestes Avitotherium Azilestes? Borisodon Eoungulatum Eozhelestes Gallolestes Kharmerungulatum Khuduklestes? Lainodon Mistralestes? Oxlestes? Paranyctoides? Parazhelestes Sheikhdzheilia Sorlestes Valentinella? Zhalmousia Zhelestes †Pantodonta see Pantodonta Placentalia Afrotheria Boreoeutheria Xenarthra

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