crinoid

Single crinoid columnal
by Kyle Hartshorn

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 17
by James St. John

Karst & Columbus Limestone (Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 4
by James St. John

trail blazer, wakatobi, 2015 (52)
by q.phia

Brachiopods in limestone (Richmondian Stage, Upper Ordovician; Southgate Hill roadcut, Indiana, USA) 1
by James St. John

Onychodus sigmoides (fossil fish jaw) (Columbus Limestone, Middle Devonian; Ohio, USA)
by James St. John

Iocrinus subcrassus (fossil crinoid) (Kope Formation, Upper Ordovician; Rt. 52 roadcut south of Newtown, Ohio, USA) 2
by James St. John

Biohermal mound & draping beds (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 2
by James St. John

Silver Rain
by Tim Sheerman-Chase

Lowellville Shale (Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 5
by James St. John

teluk waitii, night, wakatobi, 2015 (5)
by q.phia

Encrinite (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 3
by James St. John

Fossiliferous limestone (Fulton Shale, Upper Ordovician; Woolcott South roadcut, Kentucky, USA) 12
by James St. John

Fasciculiconcha knightii (fossil bivalve) (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 6
by James St. John

Diorama of a Pennsylanian seafloor - Amphicentrum fish, sponge, crinoids, rugose corals 2
by James St. John

Ostracods in pelletal glauconite beds (Floyds Knob Bed, Fort Payne Formation, Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 2
by James St. John

Sandstone-dominated Logan Formation over shale-dominated Cuyahoga Formation (Lower Mississippian; Rt. 35 roadcut, northeast of Rittenours, Ohio, USA) 7
by James St. John

Gastropod in fossiliferous limestone (Lower Mercer Limestone, Pottsville Group, Middle Pennsylvanian; Symmes Creek at Mollies Rock Road bridge, Muskingum County, Ohio, USA)
by James St. John

Byer Sandstone (Lower Mississippian; State Farm Quarry, Newark, Ohio, USA) 6
by James St. John

Encrinite (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 6
by James St. John

Encrinite (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 9
by James St. John

1 Asaphellus sp. 2 Isocrinus subcrassus
by Ryan Somma

Partially silicified Hexagonaria (fossil coral) (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 1
by James St. John

Fasciculiconcha knightii (fossil bivalve) (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 2
by James St. John

Fossiliferous limestone (Harrodsburg Limestone, Middle Mississippian; Rt. 446 roadcut, west of Norman Station, Indiana, USA) 1
by James St. John

Straight-shelled nautiloid (Lowellville Shale, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA)
by James St. John

Upper Mercer Limestone over Bedford Coal (Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 10
by James St. John

sawa utara, wakatobi, 2015 (34)
by q.phia

teluk waitii, tassled scorpion juvenile, wakatobi, 2015.
by q.phia

Byer Sandstone (Lower Mississippian; State Farm Quarry, Newark, Ohio, USA) 8
by James St. John

Encrinite (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 12
by James St. John

Sandstone-dominated Logan Formation over shale-dominated Cuyahoga Formation (Lower Mississippian; Rt. 35 roadcut, northeast of Rittenours, Ohio, USA) 13
by James St. John

Encrinite (Glen Dean Formation, Upper Mississippian; Rt. 62 roadcut, next to Rt. 3155 intersection, Leitchfield, Kentucky, USA) 2
by James St. John

Normal fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 3
by James St. John

Fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 5
by James St. John

Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 31
by James St. John

dunia baru night dive, wakatobi, 2015 (171)
by q.phia

tunicate with a tentacle thing, liabale west, wakatobi, 2018
by q.phia

Fossiliferous limestone with chert nodules (lower Boggs Member, Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 7
by James St. John

Brachiopod fossils in weathered limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 2
by James St. John

Glauconitic fossiliferous limestone (Nada Member, Borden Formation, Lower Mississippian; Interstate-64 roadcut north-northeast of Morehead, Kentucky, USA) 2
by James St. John

Ferruginous limestone (Boggs Member, Middle Pennsylvanian; Frazeysburg Pit, Muskingum County, Ohio, USA) 19
by James St. John

rock boring urchin, dunia baru night, wakatobi, 2018
by q.phia

Fossiliferous limestone (upper Columbus Limestone, Middle Devonian; Marblecliff Quarry, Hilliard, Ohio, USA) 1
by James St. John

Encrinite (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 7
by James St. John

Fossiliferous limestone (Boggs Limestone, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 4
by James St. John

Anthracospirifer occiduus fossil brachiopod (Boggs Shale, Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 2
by James St. John

Fossiliferous limestone (Fulton Shale, Upper Ordovician; Woolcott South roadcut, Kentucky, USA) 1
by James St. John

Limestone with chert nodule (Columbus Limestone, Middle Devonian; Mt. Tabor, Ohio, USA) 5
by James St. John

net on hard corals, valentin's point, wakatobi, 2018
by q.phia

Chertified encrinite (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 9
by James St. John

Fossiliferous sandstone (Allensville Member, Logan Formation, Lower Mississippian; Sugar Loaf Hill, Granville, Ohio, USA) 2
by James St. John

Phacops rana crassituberculata (fossil trilobite) (Silica Formation, Middle Devonian; quarry northwest of Paulding, Ohio, USA) 2
by James St. John

Byer Sandstone (Lower Mississippian; State Farm Quarry, Newark, Ohio, USA) 4
by James St. John

Fossiliferous dolostone (Bisher Formation, Middle Silurian; AA Highway roadcut northeast of Charters, Lewis County, Kentucky, USA) 4
by James St. John

Upper Mercer Limestone-Upper Mercer Flint (Middle Pennsylvanian; Rock Cut, Muskingum County, Ohio, USA) 3
by James St. John

Fossiliferous flint (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 3
by James St. John

New Albany Shale over North Vernon Limestone (Upper Devonian over Middle Devonian; Interstate 65 entrance ramp roadcut, Bullitt County, Kentucky, USA) 2
by James St. John

Fossiliferous chert nodule in fossiliferous limestone (Boggs Limestone, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 6
by James St. John

Byer Sandstone (Lower Mississippian; State Farm Quarry, Newark, Ohio, USA) 5
by James St. John