


A Hemiaster whitei sea urchin fossil found in Tarrant County, Texas. Goodland Formation was the location this fossil was located. The creature existed in the Lower Cretaceous Period (about 105 million years ago).
Thanks to Herb for the image.





Approximately 10 Cornulites attached to the outside of the shell.
View of five worm tubes attached to inside of the shell.
Closeup of the shell edge with worm tubes.