This fossil trace that i'm pointing to with my finger is calle | Geology of the world and the Environment

This fossil trace that i'm pointing to with my finger is called a sea urchin, I found it in El-Guntra Biskra , #Algeria ( April 2012 )

Urchin or sea urchin small, spin, globular animal belonging to be the classe #enchinoidea. Urchins inhabit all oceans. Their shelle, or "test" is round and spiny, typicaly from 3 to 10 cintimetres "1.2 to 3.9 INCH" across

Let's see in the comments your information about sea urchin #fossils

#GeologyHelp #Geology #Paleontology

https://www.linkedin.com/posts/mohammed-benhadja_algeria-enchinoidea-fossils-activity-6834764382271004672-PHp1