Crinoid Stem Fossil
Crinoid ossicle (Phylum Echinodermata)
fossil
Category
Sedimentary (Fossiliferous)
Browse sedimentary (fossiliferous) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Fossiliferous) in the encyclopedia
View all →
Crinoid Stem Fossil (Indian Bead)
Crinoid ossicle (Echinodermata)
fossil
Fossil brachiopod shell
Likely spiriferid or strophomenid brachiopod; calcium carbonate (primarily calcite)
fossil
Crinoid Fossil Fragment
Crinoid stem fossil (Echinodermata)
fossil
Crinoid Stem Fossil (St John's Bead)
Crinoidea (Class)
fossil
Elephant Molar Fragment (Fossil)
Proboscidea (Elephantidae) molar fragment
fossil
Crinoid Stem Fossil
Class Crinoidea (Echinodermata)
fossil
Crinoid Stem Segment Fossil
Crinoidea (columnal ossicle)
fossil
Crinoid Stem Fossil
Crinoidea (Class)
fossil
Chert (or Flint)
SiO2 (predominantly microcrystalline quartz)
Sedimentary
Likely weathered fossil shell or fossiliferous limestone
Indeterminate molluscan fossil, possibly a bivalve or brachiopod preserved in carbonate rock
fossil
Crinoid Stem Fossil
Crinoidea (Class) / Calcite (CaCO3)
fossil
Crinozoan fossil (Crinoid stem fragment)
Crinoid (Class Crinoidea)
fossil
Crinoid Stem Fossil
Class Crinoidea (Echinodermata)
fossil
Crinoid Stem Fossil
Class Crinoidea (Echinodermata)
fossil
Crinoid Stem Fossil (Stone)
Crinoid columnal (Class Crinoidea)
fossil
Crinoid Stem Fossil
Class Crinoidea (Echinodermata)
fossil
Crinoid Stem Fossil (in matrix)
Crinoid (Class Crinoidea)
fossil
Bumblebee Jasper
Fossiliferous Volcanic Rock (composed of Calcium Carbonate, Manganese Oxides, and Arsenic Sulfides)
igneous
Turritella Agate (Elimia Agate)
Silicified Elimia tenera (formerly misidentified as Turritella)
sedimentary (silicified fossiliferous chalcedony)
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Sedimentary Sandstone
Arenite (Sedimentary Rock)
sedimentary
Shale (or Mudstone/Siltstone)
Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary
Banded Siltstone / Mudstone Pebble
Siltstone / Argillite
sedimentary
Shale fragment
Shale (clay mineral rich sedimentary rock)
sedimentary
Shale / Mudstone
Sedimentary rock (Claystone / Mudstone / Shale)
sedimentary
Brown Sandstone (River Rock)
Arenite
sedimentary
Shale
Sedimentary Shale
sedimentary
Shale and Pebble Fragment
Sedimentary Rock (Mudstone/Shale with Silica Pebble)
sedimentary
Shale
Argillaceous sedimentary rock
sedimentary
Mudstone
Argillite / Siliciclastic sedimentary rock
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
sedimentary
Sandstone Grain
Clastic Sedimentary Rock Grain (SiO2 dominated)
sedimentary
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Cone-in-cone structure (Limestone)
Cone-in-cone structure (Secondary Sedimentary Structure)
sedimentary
Siltstone / Slate
Siltstone / Low-grade Slate
sedimentary
Sandstone pebble
Sandstone (mainly Quartz, SiO2)
sedimentary
Sandstone
Arenite
sedimentary