Fossil Finds: Waco Pit
The Waco Pit. Waco, Texas. During the Late Cretaceous period of what is now Waco, Texas was covered by a shallow inland sea. This is a research site that requires a permit from the Army Corps of Engineers.
Note: Although I do not have any below, pyritized fossils have been known from this site.
Kingtom: Animalia – Phylum: Mollusca – Class: Bivalve (clams and oysters)

Bivalve Oyster (both valves)
Cretaceous
The Waco Pit-Waco, Texas

Bivalve Texigryphaea
Cretaceous
The Waco Pit-Waco, Texas

Bivalve Oysters
Cretaceous
The Waco Pit-Waco, Texas

Bivalve Gryphaea
Cretaceous
The Waco Pit-Waco, Texas

Bivalve Clams
Cretaceous
The Waco Pit-Waco, Texas

Bivalve Pectin (fragments)
Cretaceous
The Waco Pit-Waco, Texas
Kingdom: Animalia – Phylum: Mollusca – Class: Gastropoda (snails)

Snail Internal cast
Cretaceous
The Waco Pit-Waco, Texas
Kingdom: Animalia – Phlyum: Mollusca – Class: Cephalopoda (squid and octopi)

Ammonite (shell fragment)
Cretaceous
The Waco Pit-Waco, Texas

Ammonite (shell fragments)
Cretaceous
The Waco Pit-Waco, Texas
Kingdom: Animalia – Phlyum: Annelid (worms)

Bivalve shell with worm fossils
Cretaceous
The Waco Pit-Waco, Texas