Sponge (Porifera), crushed body
Bob Campbell Geology Museum Formation: Altamont Limestone; Member: Amoret Limestone.
Sponge (Porifera sp.)
Bob Campbell Geology Museum 307 million years old; Formation: Altamont Limestone.
Maeandrostia tortacloasa, two sections of sponge body
Bob Campbell Geology Museum Formation: Graford Formation.
Girtycoelia typica, partial bodies
Bob Campbell Geology Museum Formation: Plattsburg Limestone; Member: Spring Hill Limestone.
Wewokella contorta, portion of body
Bob Campbell Geology Museum Formation: Thrifty Formation; Speck Mtn. Ls.
Coelocladia spinosa stem like segment of a sponge body
Bob Campbell Geology Museum Formation: Graford Formation
Girtycoelia typica. section of vase-like body penetrated by numerous tiny openings
Bob Campbell Geology Museum Formation: Graford Formation.