''Eobaatar'' is a genus of extinct
mammal from the Lower
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...
of
Mongolia
Mongolia; Mongolian script: , , ; lit. "Mongol Nation" or "State of Mongolia" () is a landlocked country in East Asia, bordered by Russia to the north and China to the south. It covers an area of , with a population of just 3.3 million, ...
,
Spain
, image_flag = Bandera de España.svg
, image_coat = Escudo de España (mazonado).svg
, national_motto = ''Plus ultra'' (Latin)(English: "Further Beyond")
, national_anthem = (English: "Royal March")
, i ...
and
England
England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...
. A member of the also extinct order
Multituberculata
Multituberculata (commonly known as multituberculates, named for the multiple tubercles of their teeth) is an extinct order of rodent-like mammals with a fossil record spanning over 130 million years. They first appeared in the Middle Jurassic, a ...
, it lies within the suborder
Plagiaulacida
Plagiaulacida is a group of extinct multituberculate mammals. Multituberculates were among the most common mammals of the Mesozoic, "the age of the dinosaurs". Plagiaulacids are a paraphyletic grouping, containing all multituberculates that lie ...
and family
Eobaataridae
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 re ...
. The genus ''Eobaatar'' was named by Kielan-Jaworowska Z., Dashzeveg D. and Trofimov B.A. in 1987. Its name was made from Greek "eos" = "dawn" and Mongolian "baatar" = "hero"", "warrior".
Species
''Eobaatar hispanicus''
This species was named by Hahn G. and Hahn R. in 1992. Remains consisting of a single tooth were found in Hauterivian -
Barremian
The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 129.4 ± 1.5 Ma (million years ago) and 121.4 ± 1.0 Ma). It is a subdivision of the Early Cretaceous Epoch (or Lower Cretaceous Series). It is precede ...
(Lower Cretaceous)-age
strata of the
Camarillas Formation, Spain.
''Eobaatar magnus''
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
Dzunbain Formation in Guchin Us County, Mongolia, and had a cranial length of about 3 cm.
''Eobaatar minor''
This species was also named by Kielan-Jaworowska Z., Dashzeveg D. and Trofimov B.A. in 1987. Remains were found in Lower Cretaceous Dzunbain Formation of Mongolia. Going by the species name, it was probably relatively small; his skull was 2 cm in length indeed.
''Eobaatar pajaronensis''
This species was named by Hahn G. and Hahn R. in 2001. Remains were discovered in Barremian (Lower Cretaceous) strata of the Camarillas Formation in Spain.
''Eobaatar clemensi''
This species was named by Steven Sweetman in 2009. Remains were found in the Barremian (lower Cretaceous) of the
Wessex formation
The Wessex Formation is a fossil-rich English geological formation that dates from the Berriasian to Barremian stages (about 145–125 million years ago) of the Early Cretaceous. It forms part of the Wealden Group and underlies the younger Vect ...
, England.
Sources
* Zofia Kielan-Jaworowska, Richard L. Cifelli, and Zhe-Xi Luo (2004). "Mammals from the age of dinosaurs : origins, evolution, and structure" pp. 260–342.
* Hahn & Hahn (2001), "Multituberculaten-zähne aus der Unter-Kreide (Barremium) von Ple Pajaron (Prov. Cuenca, Spanien)". ''Paläontologische Zeitschrift'' 74 (4), p. 587-589.
* Kielan-Jaworowska et al. (1987), "Early Cretaceous multituberculates from Mongolia and a comparison with Late Jurassic form". ''Acta Palaeontologica Polonica'' 32, p. 3-47.
* Kielan-Jaworowska Z & Hurum JH (2001), "Phylogeny and Systematics of multituberculate mammals". ''Paleontology'' 44, p. 389-429.
* Much of this information has been derived fro
MESOZOIC MAMMALS: Plagiaulacidae, Albionbaataridae, Eobaataridae & Arginbaataridae* S. C. Sweetman. 2009. A new species of the plagiaulacoid multituberculate mammal Eobaatar from the Early Cretaceous of southern Britain. Acta Palaeontologica Polonica 54(3):373-384
{{Taxonbar, from=Q3726681
Multituberculates
Early Cretaceous mammals of Europe
Early Cretaceous mammals of Asia
Barremian genus first appearances
Aptian genus extinctions
Cretaceous Spain
Cretaceous Mongolia
Cretaceous England
Fossils of Spain
Fossils of Mongolia
Fossils of England
Camarillas Formation
La Huérguina Formation
Prehistoric mammal genera