Connecting the environment of the ancient past with the natural and cultural history of yesterday and today.















 

 


Featured Fossil

 

This page features a fossil with details about the specimen, its age,

where it was found, and a nugget of interesting information. Not every

specimen will be perfectly preserved - but all are a marvel of the natural world!

All geological time periods are represented.

 

Pennsylvanian demosponge Coelocladia spinosa from Oklahoma

Fossil Type:

Sponge

Name:

Coelocladia spinosa Girty

Formation:

Wann

Age:

Missourian, Upper Pennsylvanian

Location:

Bardew Lake, Washington Co., Oklahoma

Notes:

Fossil sponges of Class Demospongea have a wide distribution in the fossil record dating back to the Cambrian Period. Dominantly marine, any modern freshwater sponge is a demosponge. This narrow specimen shows hollow pores called a ostiums. Anonymous collection. Click here for another view. FOV = 2.5 cm

Date Posted:

May 25, 2016

 

Archived Featured Fossils

Archived images are now arranged in each category by geological time period.

How to Submit a Featured Fossil

Created April 12, 2012