F130 Sample ID F130 • Cabinet M Flexicalymene 2.97cm W x 1.42cm H x 1.98cm D • 8g Sample TypeFossilFossil TypeAltered hard partsMohs Hardness 2 DomainEukaryotaKingdomAnimaliaPhylumArthropodaClassTrilobita OrderPhacopidaFamilyCalymenidaeGenusFlexicalymeneSpeciesNA Distribution/PeriodWorldwide, Ordovician HabitatMarine PreservationReplacement Orig. Material?NA ReliefPositive and Negative Relief Mineral Comp.Potentially Shale There are five specimens included in this, all are pieces of multiple trilobites. Some show visible segments from the tail or pygidium. Some show segments of the thorax, and there i sone piece that has a segment of the head shield. Description of Mohs scale here