Archaeocyatha
Archaeocyatha Media
From the Poleta formation, lower Cambrian of eastern California, a fossil reef of Archaeocyathids. Because of the paraboloid nature of the animal, fossils of it in cross section (for example, on a rock face), produce conic sections.
Branching form archaeocyath from Rowland's Reef in Nevada
- Archaeocyatha
Archaeocyath observed in situ in the Flinders Ranges
Restoration of Antarcticocyathus webberi
Other websites
- Archaeocyatha at Geology museum