Genus: Eosuchus DOLLO, 1907
Etymology: Greek, eos, "dawn, primorial" and Greek, souchus, "crocodile."
=Thecachampsoides NORELL & STORRS, 1989

Species: lerichei DOLLO, 1907
Etymology:

Holotype: IRSNB R 49

Locality: Jeumont, Maubeuge, Nord Department, Northern France. The locality, few meters far from the Franco-Belgian border, is part of the well known fossiliferous area of Erquelinnes, Belgium.

Horizon: Grandglise Member, Haunnut Formation.

Biostratigraphy:

Age: Thanetian, Upper Paleocene Epoch, Lower Paleogene Period, Lower Tertiary Subera, Cenozoic Era.

Material: Skull, incomplete lower jaw, axis, 3 cervical vertebrae, an isolated neural arch, 3 ribs, a fragmentary ulna and radius, a carpal element and 14 osteoderms or their fragments.
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Species: minor (MARSH, 1870) BROCHU, 2006
Etymology: Latin, minor, "minor/small."
= Thecachampsoides minor (MARSH, 1870) NORELL & STORRS, 1989
= Gavials minor MARSH, 1870

Holotype: YPM 282

Locality: Shark River, Monmouth County, New Jersey.

Horizon: Manasquan Formation, Greensand.

Biostratigraphy:

Age: Eocene Epoch, Paleogene Period, Lower Tertiary Subera, Lower Cenozoic Era.

Material: Skull fragments and 10 vertebrae.

Referred material:

Locality: Near Ocean City, Cape May County, New Jersey.

Horizon: Vincentown Formation.

Biostratigraphy:

Age: Thanetian, Late Paleocene Epoch, Paleogene Period, Lower Tertiary Subera, Lower Cenozoic Era.

Material:

NJSM 15437: Nearly complete skull and associated postcranial elements.

 

Locality: Maryland and Virgina.

Horizon: Aquia Formation.

Biostratigraphy:

Age: Thanetian, Late Paleocene Epoch, Paleogene Period, Lower Tertiary Subera, Lower Cenozoic Era.

Material:

USNM 299730: Skull with damaged pterygoidal region and partial skeleton.

USNM 181577: Skull lacking rostral tip of premaxillae and partial skeleton.

USNM 355967: Partial mandible and associated postcranial remains.

USNM 321933: Skull and partial skeleton still in block of sandstone.