''Otodus aksuaticus'' is an extinct species of large shark in the family

Otodontidae Otodontidae is an extinct family of sharks belonging to the order Lamniformes. Its members have been described as megatoothed sharks. They lived from the Early Cretaceous to the Pliocene, and included genera such as ''Carcharocles'' and ''Otodus ...

which may represent a transitional species between ''

Otodus obliquus ''Otodus'' is an extinct genus of mackerel shark which lived from the Paleocene to the Pliocene epoch. The name ''Otodus'' comes from Ancient Greek (, meaning "ear") and (, meaning "tooth") – thus, "ear-shaped tooth". Anatomy This shark is k ...

'' and ''

Otodus auriculatus ''Otodus auriculatus'' is an extinct species of large sharks in the genus ''Otodus'' of the family Otodontidae, closely related to the sharks of the genus ''Otodus'', and also closely related to the later species megalodon. Its teeth were large, ...

''. They are similar in overall morphology to ''

'' except they have serrations on their cusps and blade. It is sometimes placed in the genus ''Otodus''. It is mainly found in the Ypresian stage of the Eocene epoch. They have been found in the Woodstock Member of the

Nanjemoy Formation The Nanjemoy Formation is a geologic formation pertaining to both the Wilcox Group and the Pamunkey Group of the eastern United States, stretching across the states of Virginia, Maryland, and District of Columbia. The formation crops out east of ...

of Maryland and Virginia and Ypresian sediments in Aktulagay, Kazakhstan as well as the Ypres clay in Belgium and the

London Clay The London Clay Formation is a marine geological formation of Ypresian (early Eocene Epoch, c. 56–49 million years ago) age which crops out in the southeast of England. The London Clay is well known for its fossil content. The fossils from t ...

in the United Kingdom.

References

{{Taxonbar, from=Q26240548 aksuaticus Ypresian life Eocene fish of North America Paleontology in Maryland Paleontology in Virginia Eocene fish of Europe Paleogene Belgium Fossils of Belgium Paleogene England Fossils of England Fossil taxa described in 1928