crinoid

Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 24
by James St. John

Fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 7
by James St. John

Fossiliferous limestone with chert nodules (lower Boggs Member, Pottsville Group, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 12
by James St. John

Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 22
by James St. John

Fossiliferous limestone (Fulton Shale, Upper Ordovician; Woolcott South roadcut, Kentucky, USA) 2
by James St. John

the zoo, wakatobi, 2015 (5)
by q.phia

Solitary rugose corals (Marblehead Member, Columbus Limestone, Middle Devonian; lakehore outcrop near Marblehead Lighthouse, Ottawa County, Ohio, USA) 15
by James St. John

Fossiliferous limestone with phylloidal algae (Putnam Hill Limestone, Middle Pennsylvanian; waste rock pile from old clay mine along Blunt Run, Muskingum Township, Muskingum County, Ohio, USA) 3
by James St. John

Upper Mercer Limestone over Bedford Coal (Middle Pennsylvanian; Noland Tunnel's north portal outcrop, Tunnel Hill, Coshocton County, Ohio, USA) 1
by James St. John

Mudchip breccia in limestone (Boggs Limestone, Middle Pennsylvanian; ravine below Rt. 208, east of Dresden, Muskingum County, Ohio, USA) 2
by James St. John

At the crinoid site
by GOC53

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

Fossiliferous flint & fossiliferous limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 2
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Melvin Stone Quarry, near Williamsport, Pickaway County, Ohio, USA) 6
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 4
by James St. John

Dundee Limestone-Anderson Limestone? (Benchmark Materials-France Stone Company Sylvania Quarry, Lucas County, Ohio, USA) 3
by James St. John

Fossiliferous limestone (Fulton Shale, Upper Ordovician; Woolcott South roadcut, Kentucky, USA) 11
by James St. John

vivian's reef, wakatobi, 2015 (59)
by q.phia

At the floating crinoid site
by GOC53

Columbus Limestone-Delaware Limestone boundary bed (Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 3
by James St. John

Fossiliferous chert nodules in fossiliferous limestone (Boggs Limestone, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 2
by James St. John

Fossiliferous limestone with phylloidal algae (Putnam Hill Limestone, Middle Pennsylvanian; waste rock pile from old clay mine along Blunt Run, Muskingum Township, Muskingum County, Ohio, USA) 6
by James St. John

Fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 16
by James St. John

Normal fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 7
by James St. John

Laminated argillaceous limestone (Maxville Limestone, Mississippian; Pleasant Valley Limestone Quarry, Muskingum County, Ohio, USA) 1
by James St. John

Fossiliferous chert nodules in fossiliferous limestone (Boggs Limestone, Pennsylvanian; Rt. 93 roadcut north of Mt. Pleasant, Hocking County, Ohio, USA) 1
by James St. John

Phacops rana crassituberculata (fossil trilobite) (Silica Formation, Middle Devonian; quarry northwest of Paulding, Ohio, USA) 18
by James St. John

Antiquatonia coloradoensis fossil brachiopod (Boggs Shale, Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 3
by James St. John

Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 19
by James St. John

Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 21
by James St. John

Fossiliferous limestone (Columbus Limestone; Middle Devonian; Ohio, USA) 8
by James St. John

Moellerina greenei (fossil charophyte oogonia) in fossiliferous limestone (Columbus Limestone, Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 2
by James St. John

Antiquatonia coloradoensis fossil brachiopod (Boggs Shale, Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 4
by James St. John

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 13
by James St. John

Fossiliferous dolostone (Bisher Formation, Middle Silurian; AA Highway roadcut northeast of Charters, Lewis County, Kentucky, USA) 1
by James St. John

Biohermal mound & draping beds (Fort Payne Formation, Lower Mississippian; Rt. 61 roadcut, north of Burkesville, Kentucky, USA) 1
by James St. John

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

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 11
by James St. John

Gray shale (Fort Payne Formation, Lower Mississippian; Burkesville West Rt. 90 roadcut, Kentucky, USA) 9
by James St. John

Joint in limestone (Columbus Limestone, Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 1
by James St. John

Pentremites sp. (fossil blastoids) (Mississippian; Big Hill, 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) 3
by James St. John

waitii ridge, wakatobi, 2015 (67)
by q.phia

Biocalcarenite (Salem Limestone, Middle Mississippian; Bedford, Indiana, USA) 2
by James St. John

Fossil, sjölilja, Stora Karlsö
by Bochum1805

Leptaena fossil brachiopod in fossiliferous limestone (Columbus Limestone, Middle Devonian; Ohio, USA) 2
by James St. John

lorenzo's delight, wakatobi, 2015 (18)
by q.phia

Columbus Limestone (Middle Devonian; Wright Run Creek, Dublin, Ohio, USA) 1
by James St. John

Fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 1
by James St. John

Joint in limestone (Columbus Limestone, Middle Devonian; Indian Village Canyon, Columbus, Ohio, USA) 3
by James St. John

Crinoid - partial calyx and stems
by Kyle Hartshorn

Columbus Limestone-Delaware Limestone boundary bed (Middle Devonian; Emerald Parkway roadcut, Dublin, Ohio, USA) 4
by James St. John

Iocrinus subcrassus (fossil crinoid) (Kope Formation, Upper Ordovician; Rt. 52 roadcut south of Newtown, Ohio, USA) 3
by James St. John

Coral in fossiliferous limestone (Jeffersonville Limestone, Middle Devonian; Falls of the Ohio, southern Indiana, USA) 16
by James St. John

Fossil gastropod in limestone (Columbus Limestone, Middle Devonian; Quarry Trails Park, Columbus, Ohio, USA) 2
by James St. John

Fossiliferous flint masses in limestone (Upper Mercer Limestone, Middle Pennsylvanian; Rock Cut railroad cut, south-southeast of Dresden, Ohio, USA) 12
by James St. John

Putnam Hill Limestone (Middle Pennsylvanian; Rt. 79 roadcut, Perry Township, Coshocton County, Ohio, USA) 15
by James St. John

Fault in the Lowellville Shale (Pottsville Group, Lower Pennsylvanian; Beach City Dam outcrop, northeastern Ohio, USA) 10
by James St. John

Diorama of a Devonian seafloor - solitary & colonial corals, trilobites, gastropods, crinoid, fenestrate bryozoan, brachiopods 2
by James St. John

Fossiliferous mudshale (Boggs Shale, Pottsville Group, Pennsylvanian; Blunt Run, Muskingum County, Ohio, USA) 3
by James St. John