Formation : Austin Chalk

Austin Chalk

Aprox. 82-86 Million Years Ago

Ammonite Pachydiscus travisi

Ammonite Barroisiceras dentatocarinatum

Nautiloid Eutrophoceras campbelli

Ammonite Baculites sp.

Mosasaur cf Russelosaurus sp.

Reptile Tooth

Shark Squalicorax falcatus

Shark Ptychodus mortoni

Shark Ptychodus sp.

Shark Ptychodus latissimus

Shark Ptychodus latissimus

Shark Microcorax sp.

Shark Ptychodus atcoensis 

Shark Scapanorhynchus texanus

Shark Squalicorax kaupi

 Sawfish Texatrygon hooveri 

Shark Cantioscylium decipiens

Sawfish Ptychotrygon triangularis

Fish Protosphyraena sp. 

Unknown Fish Tooth

Fish Enchodus sp.

Unknown Fish Tooth

Shark Vertebra

Vertebra

Starfish Ossicle

Starfish Ossicle 

Crinoid Roveocrinus sp.

Echinoid Micraster uddeni

Echinoid Spine

Echinoid Plate

Unknown Coral

Coral Micrabacia

Gastropod Semineritina cf.

Gastropod Unknown

Bivalve Trigonia thoracia 

Gastropod Anchura texana 

Bivalve Astarte liniolata

Bivalve Unknown

Bivalve Lima crenulicosta

Bivalve Neithea austinensis 

Brachiopod Choristothyris plicata (former)

Oyster Agerostrea mesenterica 

Oyster Lopha panda

Oyster Exogyra tigrina 

Oyster Exogyra laeviuscula

Oyster Inoceramus subquadratus 

Oyster Inoceramos  mytilopsis 

Oyster Pychnodont aucella 

Oyster Unknown

Oyster Exogyra laeviscula 

Oyster Exogyra ponderosa

Foraminifera Unknown

Foraminifera Nodosaria sp.

Foraminifera Unknown

Foraminifera Dentalina mutablis 

Unknown Bryozoan

Worm Pyrgopolon squamosus