Lance's north Texas fossil page

[Last updated 12 Feb 2024]

Reptiles
(marine only)

Class: Reptilia
Order: Squamata
Superfamily: Mosasauroidea
Family: Mosasauridae
(mosasaur)

The family Mosasauridae contains the subfamilies: Halisaurinae, Mosasaurinae, Plioplatecarpinae, and Tylosaurinae
Tylosaurus sp. "Heath Mosasaur" [+] Strata: Ozan? Period: Cretaceous Loc: Rockwall Co., TX.	Tylosaurus proriger (commercial cast) Strata: ? Period: Cretaceous Loc: SMU	Platycarpus sp. (mosasaur) Strata: ?? Period: Cretaceous Loc: Dallas Co., TX. Dallas Museum NH
Plioplatecarpus sp. vertebrae [+] Strata: Marlbrook Period: Cretaceous Loc: Arkansas [ID by Mike P]	Plioplatecarpus sp. same (bottom view) [+] Strata: Marlbrook Period: Cretaceous Loc: Arkansas	Plioplatecarpus sp. (left vert bottom view) [+] Strata: Marlbrook Period: Cretaceous Loc: Arkansas
same (back view) Strata: Marlbrook Period: Cretaceous Loc: Arkansas
Platycarpus sp. vertebra Strata: Ozan Period: Cretaceous Loc: NSR, Delta Co., TX.	same Strata: Ozan Period: Cretaceous Loc: NSR, Delta Co., TX.	"mosasaur" vertebrae Strata: Taylor Group Period: Cretaceous Loc: North Texas [Found by Tera S]
Russellosaurus coheni jaw Strata: Eagle Ford Period: Cretaceous Loc: Dallas Co., TX. [Found by Mark C, SMU collection]	Russellosaurus? jaw section [+] Strata: Eagle Ford Period: Cretaceous Loc: Dallas Co., TX. Sep. 2011 [Found by Kerry K]
Russellosaurus sp. teeth? Strata: Eagle Ford Period: Cretaceous Loc: Ellis Co., TX. 27 June 2022 [ID by Mike P]	reptile tooth Form: Eagle Ford (Britton shale) Period: Cretaceous (c. 100 mya) Loc: Tarrant Co., TX.

Class: Reptilia
Order: Squamata
Superfamily: Mosasauroidea
Family: Mosasauridae
Genus: Globidens

" Globidens, unlike most other mosasaurs, had semispherical teeth with rounded points, which were much better suited for crushing tough armored prey like small turtles, ammonites, nautili, and bivalves." Wikipedia entry
Globidens sp. jaw Strata: Ozan? Period: Cretaceous Loc: NE Texas. Found by Gary W.	Globidens sp. skull bones Strata: Ozan? Period: Cretaceous Loc: NE Texas. Found by Gary W.
Globidens sp. tooth [+] Strata: Ozan? Period: Cretaceous Loc: NE Texas. Found by Tera S.

Class: Reptilia
Order: Ichthyosauria
Family: Ophthalmosauridae
(ichthyosaur)

Platypterygius sp. Ichthyosaur vertebra Strata: Mainstreet Period: Cretaceous Loc: Tarrant Co., TX. June 20, 2010. Found by Roz M.	Platypterygius sp. Ichthyosaur tooth Strata: Kiamichi Period: Cretaceous Loc: Tarrant Co., TX. May 28, 2011. Found by Lance H.
"Ichthyosaur" tooth? Strata: Arcadia Park (just above Kamp Ranch Ls.) Period: Cretaceous Loc: Denton Co., TX. April 29, 2017. Found by Lance H.

Class: Reptilia
Order: Plesiosauria
Suborder: Plesiosaur
(plesiosaur)

A plesiosaur vertebra Strata: Ozan Period: Cretaceous Loc: Fannin Co., TX. Found by Roz M.
Plesiosaur vertebrae Strata: Eagle Ford Group Period: Cretaceous Loc: Denton Co., TX. (SMU collection)
Plesiosaur vertebra [all 7] Strata: Ozan? Period: Cretaceous Loc: NE Texas. Found by Sterling Z.
Libonectes morgani skull Strata: Eagle Ford Period: Cretaceous Loc: Cedar Hill, Tx. (Found by T. W. Tidwell, SMU Coll.)	Libonectes morgani skull Strata: Eagle Ford Group Period: Cretaceous Loc: Cedar Hill, Tx. (SMU collection)