Formation: Del Rio

Del Rio Formation

 Aprox. 97-100 Million Years Ago

Ammonite Paracalycoceras sp.

Ammonite Mariella worthensis

Ammonite Otoscaphites subevolutus 

Ammonite Adkinsia bosquensis 

Ammonite  Anisoceras sp.

Ammonite Submatelliceras brazoense

Nautiloid 

Paracymatoceras sp 

Echinoid 

Goniophorus scotti

Echinoid Cidarid sp

 Shark Cretelamna appendiculata 

Shark Leptostyrax sp.

 Shark Cretelamna appendiculata 

Unknown Crab Claws

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Crab Claw

Unknown Coral

Crinoid Roveacrinus signatus

Crinoid Plotocrinus spiculatus

Starfish Vertebra

Crinoid Roveacrinus latealatus

Unknown Crinoid

Starfish Fragment


Starfish Ophiuria sp

Starfish Ophiuria sp

Starfish Ophiuria sp

Starfish Ophiuria sp. Armtip

Starfish Ossicle

Starfish Ossicle

Unknown Fish Tooth

Fish Tooth Pycnodont sp.

Fish Tooth Enchodus

Gastropod Cerithium texanum

Gastropod Turritella sp. 

Gastropod Tylostoma harrisi

Gastropod Nerinea volana 

Gastropod Gyrodes sp.

Gastropod Fusus simodsi

Bivalve Neithea texana 

Oyster Texigryphaea grasonana  

Oyster Ilymatogyra arietina

Bivalve Plicatula sp. 

Oyster Illymatogyra arietina

Worm Pyrgogplon squamatus