F133 Sample ID F133 • Cabinet M Eldredgeops rana 11.37cm W x 3.26cm H x 8.17cm D • 358g Sample TypeFossilFossil TypeAltered hard partsMohs Hardness 2 DomainEukaryotaKingdomAnimaliaPhylumArthropodaClassTrilobita OrderPhacopidaFamilyPhacopidaeGenusEldredgeopsSpeciesE. rana Distribution/PeriodNorth America and Africa, Middle Devonian HabitatMarine PreservationCast and Mold, Replacement Orig. Material?NA ReliefPositive and Negative Relief Mineral Comp.Shale This fossil has two visible thoraxes, and one has a visible rounded pygidium. One of the specimens is a cast and the other is a mold, both replaced by sediment. Description of Mohs scale here