Hello, here are TWO! small 100% natural Pygurus sp. Sea Urchin or Sand Dollar like fossils that have been polished! They were quarried in the Morondava River Basin, near the town of Sakaraha, Southwest, Madagascar.
Both have great colors and definition! These "rocks" were living Animals during the Jurassic period, Oxfordion Age a Crazy! 161 to 156 million years ago.
The Largest fossil measures around 1 5/16" or 3.21cm at its biggest or from opposing side to side.