Eotomistoma

Eotomistoma; Temporal range: Early Cretaceous PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Crocodyliformes
Genus:	†Eotomistoma; Young, 1964
Type species
	†Eotomistoma multidentata; Young, 1964

Eotomistoma is a dubious genus of crocodyliform from the Lower Cretaceous of China.

History

Eotomistoma was named by Chung-Chien Young in 1964 based on two pieces of the snout.[1] Young assigned it to the Tomistominae. However, other researchers, such as Eric Buffetaut, were skeptical of Young's interpretation, and in 1981 Denise Sigogneau-Russell re-studied it and determined the specimen was a chimera of a crocodylian and a choristodere.[2] Sigogneau-Russell named the choristodere fossil Ikechosaurus. The remaining snout fragment, still the holotype of Eotomistoma, is now considered to be an indeterminate crocodyliform.[3]

Paleoecology

Eotomistoma is known from the Lower Cretaceous Luohandong Formation. It was a contemporary of the choristodere Ikechosaurus and the crocodyliforms Theriosuchus and Shantungosuchus.[3]

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References

Young, Chung-Chien (1964). "New fossil crocodiles from China" (PDF). Vertebrata PalAsiatica. 8 (2): 189–208.
Sigogneau-Russell, Denise (1981). "Présence d'un nouveau Champsosauridé dans le Crétacé supérieur de Chine". Comptes Rendus de l'Académie des Sciences de Paris. 292: 1–4.
Wu, X.-C.; Sues, H.-D.; Brinkman, D. B. (1996). "An atoposaurid neosuchian (Archosauria: Crocodyliformes) from the Lower Cretaceous of Inner Mongolia (People's Republic of China)". Canadian Journal of Earth Sciences. 33 (4): 599–605. Bibcode:1996CaJES..33..599W. doi:10.1139/e96-044.

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[Young1964-1] Young, Chung-Chien (1964). "New fossil crocodiles from China" (PDF). Vertebrata PalAsiatica. 8 (2): 189–208.

[SigogneauRussell1981-2] Sigogneau-Russell, Denise (1981). "Présence d'un nouveau Champsosauridé dans le Crétacé supérieur de Chine". Comptes Rendus de l'Académie des Sciences de Paris. 292: 1–4.

[Wu1996-3] Wu, X.-C.; Sues, H.-D.; Brinkman, D. B. (1996). "An atoposaurid neosuchian (Archosauria: Crocodyliformes) from the Lower Cretaceous of Inner Mongolia (People's Republic of China)". Canadian Journal of Earth Sciences. 33 (4): 599–605. Bibcode:1996CaJES..33..599W. doi:10.1139/e96-044.