Species: Gyrolithes davreuxi
County: Williamson
Site: None
Group: Austin
Formation: Austin Chalk
Member: Atco
Period: Cretaceous
Epoch: Upper K
Stage: Santonian Coniacian
Class: Trace
Order: Burrow
Superfamily: None
Family: None
Genus: Gyrolithes
State: Texas
Credit: tmc
ID: 385