31303727fossilsPT2026-03-30 20:21:40UF31303728fossilNDBT31298612organisms by conditionPTBT31344782rock by formPTBT31306505remainsPTNT31316453microfossilsPTNT31316455coprolitesPTNT31316459CardiidaePTNT31316461petrified woodPTRT31304850fossilizationPTRT31372718paleontologyPT