Representative 3D model of a fossil Calcarea sponge

Virtual Collection: Class Calcarea

This virtual collection was last curated by Jonathan Hendricks on June 5, 2019. Each model is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Unless otherwise indicated, each model was created by Emily Hauf using specimens at the Paleontological Research Institution, Ithaca, New York.

You can learn more about Calcarea sponges on the Digital Encyclopedia of Ancient Life.

Class Calcarea


Fossil specimen of the calcareous sponge Raphidonema farringdonense from the Cretaceous of Berkshire, England (PRI 45561). Specimen is from the research collections of the Paleontological Research Institution, Ithaca, New York. Maximum diameter of specimen is approximately 8 cm. 


Fossil specimen of the sponge Astraeospongium meniscus of the order Heteractinida from the Silurian Niagara Group of Perry County, Tennessee (PRI 76744). Specimen is from the collections of the Paleontological Research Institution, Ithaca, New York. Maximum diameter of specimen is approximately 8 cm.