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Eobaataridae

Extinct family of mammals

Summary

Extinct family of mammals

  • Dolichoprion
  • Eobaatar
  • Heishanobaatar
  • Iberica
  • ?Indobaatar
  • Loxaulax
  • Parendotherium
  • Sinobaatar
  • Jeholbaatar
  • Monobaatar?
  • Liaobaatar
  • Hakusanobaatar
  • Tedoribaatar

Eobaataridae is a family of fossil mammals within the order Multituberculata. Remains are known from the Lower Cretaceous of Europe and Asia. They are among the most derived representatives of the informal suborder "Plagiaulacida", and closely related to Cimolodonta. Most eobaatarids are only known from isolated teeth, though several reasonably complete members are known, including Sinobaatar and Jeholbaatar. The body of Sinobaatar is generalised, while Jeholbaatar displays clear adaptations for scansoriality (climbing) due to its elongated digits. Due to the morphology of the cheek teeth, Eobaatar and Jeholbaatar are inferred to be omnivorous, likely feeding on plants and invertebrates.

Indobaatar from the Early Jurassic Kota Formation has been suggested to be the earliest known multituberculate, let alone the earliest eobaatarid, and may stretch the eobaatarid-cimolodontan group much earlier than previously thought. However its referral to the family has been considered questionable by other scholars.

Fossils of Jeholbaatar kielanae seem to show that multituberculates independently acquired a middle ear from other mammal groups.

Cladogram after Carvalho et al. 2025:{{clade|{{clade

Etymology

The name "Eobaatar" (from ancient Greek "ἠώς"= dawn and Mongolian "baatar"= hero) means "dawn hero".

Notes

References

  • Kielan-Jaworowska, Dashzeveg & Trofimov (1987), "Early Cretaceous multituberculates from Mongolia and a comparison with Late Jurassic forms". Acta Palaeontologica Polonica 32, p. 3-47.

References

  1. (2010). "New multituberculate mammals from the Lower Cretaceous (Shahai and Fuxin formations), northeastern China". Journal of Vertebrate Paleontology.
  2. Nao Kusuhashi. (2008). "Early Cretaceous multituberculate mammals from the Kuwajima Formation (Tetori Group), central Japan". Acta Palaeontologica Polonica.
  3. Hu, Yaoming. (2002). "Sinobaatar gen. nov.: First multituberculate from the Jehol Biota of Liaoning, Northeast China". Chinese Science Bulletin.
  4. Parmar, Prasad, and Kumar (2013) The first multituberculate mammal from India. Naturwissenschaften
  5. (2019-08-23). "A New Eobaatarid Multituberculate (Mammalia) from the Lower Cretaceous Fuxin Formation, Fuxin-Jinzhou Basin, Liaoning, Northeastern China". Journal of Mammalian Evolution.
  6. (2017). "An enigmatic multituberculate mammal from the Early Cretaceous of Siberia, Russia". Journal of Vertebrate Paleontology.
  7. (2019). "Cretaceous fossil reveals a new pattern in mammalian middle ear evolution". Nature.
  8. Carvalho, Victor F.. (March 2025). "Cambelodon torreensis , a new pinheirodontid multituberculate from the Upper Jurassic of western Portugal". Papers in Palaeontology.
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

multituberculata early-cretaceous-extinctions prehistoric-mammal-families
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