Species: Arca sp?
County: Williamson
Site: _Williamson 1 (Jonah)
Group: Austin
Formation: Austin Chalk
Member: None
Period: Cretaceous
Epoch: Upper K
Stage: Santonian Coniacian
Class: Bivalvia
Order: Arcida
Superfamily: None
Family: Arcidae
Genus: Arca
State: Texas
Credit: tmc
ID: 1021
MMM ID: None