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Eobaatar

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Eobaatar
Fossil range: Early Cretaceous
Scientific classification

Kingdom:

Animalia

Phylum:

Chordata

Class:

Mammalia

Subclass:

Allotheria

Order:

Multituberculata

Suborder:

Plagiaulacida

Family:

Eobaataridae

Genus:

Eobaatar
Kielan−Jaworowska, Dashzeveg, and Trofimov, 1987

Species:

  • E. hispanicus
  • E. magnus
    Kielan−Jaworowska, Dashzeveg, and Trofimov, 1987 (type)
  • E. minor
  • E. pajaronensis (?)
  • E. clemensi
    Sweetman, 2009[1]

Eobaatar is a genus of extinct mammal from the Lower Cretaceous of Mongolia and Spain. It was a member of the also extinct order Multituberculata, and lived at the same time as some dinosaurs. It lies within the suborder Plagiaulacida and family Eobaataridae. The genus Eobaatar was named by Kielan-Jaworowska Z., Dashzeveg D. and Trofimov B.A. in 1987.

SpeciesEdit

Eobaatar hispanicusEdit

This species was named by Hahn G. and Hahn R. in 1992. Remains consisting of a single tooth were found in Hauterivian - Barremian (Lower Cretaceous)-age strata of Galve, Spain.[citation needed]

Eobaatar magnusEdit

This species was named by Kielan-Jaworowska Z., Dashzeveg D. and Trofimov B.A. in 1987. It is based on a fragment of lower jaw with teeth found in Aptian or Albian (Lower Cretaceous) strata of the Khoboor beds in Guchin Us County, Mongolia.[2]

Eobaatar minorEdit

This species was also named by Kielan-Jaworowska Z., Dashzeveg D. and Trofimov B.A. in 1987. Remains were found in Lower Cretaceous strata of Mongolia. Going by the species name, it was probably relatively small.[2]

Eobaatar pajaronensisEdit

This species was named by Hahn G. and Hahn R. in 2001. Remains were discovered in Barremian (Lower Cretaceous) strata of Ple pajaron in Spain.[3]

E. clemensiEdit

E. clemensi is a species described in 2009 by Steven C. Sweetman in the open-access journal Acta Palaeontologica Polonica. the fossil remains date back to the Barremianstage of the Early Cretaceous, and were uncovered in the Wessex Formation of the Isle of Wight, part of the Wealden Group. The remains were first discovered in the early 1970s. The specific epithet honors Professor William A. Clemens who worked on mammals of the Wealden Supergroup of south−east England. It is based on BMNH M 45482 and paratype BMNH M 45557 tooth crowns. Part of SMNS 51981, a poorly preserved left tooth crown, and BMNH M 45483, a well preserved left tooth crown and partial root, are tentatively ascribed to this species. The holotype was discovered in bed L9 exposed about 300 m north−west of Grange Chine on the south−west coast of the Isle of Wight.

ReferencesEdit

  1. ^ Sweetman, S.C. (2009). A new species of the plagiaulacoid multituberculate mammal Eobaatar from the Early Cretaceous of southern Britain. Acta Palaeontologica Polonica 54 (3): 373–384. doi:10.4202/app.2008.0003
  2. ^ a b Kielan-Jaworowska et al. (1987), "Early Cretaceous multituberculates from Mongoloia and a comparison with Late Jurassic form". Acta Palaeontologica Polonica 32, p.3-47.
  3. ^ Hahn & Hahn (2001), "Multituberculaten-zähne aus der Unter-Kreide (Barremium) von Ple Pajaron (Prov. Cuenca, Spanien)". Palaontologische Zeitschrift 74 (4), p.587-589. (Multituberculate teeth from the Lower Cretaceous (Barremium) of Ple Pajaron (Prov. Cuenca, Spain))


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