These are beautiful, polished echinoid (sand dollar) fossils from the Tulear Province in Madagascar.
Authentic Polished Sand Dollar Fossil (2-3 inches) - Sea Urchin: : Industrial & Scientific
BIG Polished 150 Million Year Old SAND DOLLAR Fossil 159gr
2 to 3 Polished Fossil Sand Dollars - Madagascar For Sale
BIG Polished 100% Natural SAND DOLLAR Fossil Madagascar 171gr
Beautiful Fossil Sand Dollar - France (#8826) For Sale
Fossil Sand Dollars For Sale
Fossil Sand Dollar (Encope tamiamiensis) - Florida (#11106) For
Jurassic Aged Fossil Sand Dollar (Mepygurus) - Madagascar (#18819
Fossil Sand Dollar Mepygurus From Madagascar (#3295) For Sale