The Kimmswick Limestone is an

Ordovician The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era, and the second of twelve periods of the Phanerozoic Eon (geology), Eon. The Ordovician spans 41.6 million years f ...

geologic formation A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exp ...

Arkansas Arkansas ( ) is a landlocked state in the West South Central region of the Southern United States. It borders Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, Texas to the southwest, and Oklahoma ...

Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...

and

Missouri Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...

. Fossils occurring in the Kimmswick include

coral Corals are colonial marine invertebrates within the subphylum Anthozoa of the phylum Cnidaria. They typically form compact Colony (biology), colonies of many identical individual polyp (zoology), polyps. Coral species include the important Coral ...

s, bryozoans,

brachiopod Brachiopods (), phylum (biology), phylum Brachiopoda, are a phylum of animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear e ...

conodont Conodonts, are an extinct group of marine jawless vertebrates belonging to the class Conodonta (from Ancient Greek κῶνος (''kōnos''), meaning " cone", and ὀδούς (''odoús''), meaning "tooth"). They are primarily known from their hard ...

trilobite Trilobites (; meaning "three-lobed entities") are extinction, extinct marine arthropods that form the class (biology), class Trilobita. One of the earliest groups of arthropods to appear in the fossil record, trilobites were among the most succ ...

crinoid Crinoids are marine invertebrates that make up the class Crinoidea. Crinoids that remain attached to the sea floor by a stalk in their adult form are commonly called sea lilies, while the unstalked forms, called feather stars or comatulids, are ...

s and

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

Fossil content

The following fossils have been reported from the formation:Kimmswick Limestone
at

Fossilworks Fossilworks was a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database, a large relational database assembled by hundreds of paleontologists from around the world. History Fossilworks was cr ...

.org

Conodont Conodonts, are an extinct group of marine jawless vertebrates belonging to the class Conodonta (from Ancient Greek κῶνος (''kōnos''), meaning " cone", and ὀδούς (''odoús''), meaning "tooth"). They are primarily known from their hard ...
s

* ''

Acodus ''Acodus'' is an extinct genus of conodonts. Species * ''A. acutus'' * ''A. campanula'' * ''A. crassus'' * ''A. delicatus'' * ''A. deltatus'' * ''A. erectus'' * ''A. firmus'' * ''A. jonesi'' * ''A. kechikaensis'' * ''A. neodeltatus'' * ''A. ...

'' : ''A. unicostatus'' * '' Acontiodus'' : ''A. alveolaris'' * '' Ambalodus'' : ''A. elegans'' : ''A. pulcher'' : ''A. triangularis'' * '' Aphelognathus'' : ''A. abrupta'' : ''A. polita'' * '' Belodina'' : ''B. compressa'' * '' Cordylodus'' : ''C. delicatus'' : ''C. flexuosus'' * '' Dichognathus'' : ''D. brevis'' : ''D. scotti'' : ''D. typica'' * '' Distacodus'' : ''D. falcatus'' * '' Drepanodus'' : ''D. homocurvatus'' : ''D. suberectus'' * '' Eoligonodina'' : ''E. delicata'' * '' Icriodella'' : ''I. superba'' * '' Keislognathus'' : ''K. gracilis'' * '' Oistodus'' : ''O. abundans'' : ''O. inclinatus'' : ''O. parallelus'' * ''

Ozarkodina ''Ozarkodina'' is an extinct genus of conodonts in the family Spathognathodontidae. Use in stratigraphy ''Ozarkodina snajdri'' forms a subdivision of the '' Pseudomonoclimacis'' latilobus graptolite zone in the Burgsvik beds Silurian format ...

'' : ''O. concinna'' * '' Panderodus'' : ''P. compressus'' : ''P. ellisoni'' : ''P. fornicalis'' : ''P. gracilis'' : ''P. simplex'' * '' Phragmodus'' : ''P. undatus'' * '' Prioniodina'' : ''P. furcata'' * '' Rhynchognathodus'' : ''R. divaricatus'' : ''R. typicus'' * '' Sagittodontus'' : ''S. robustus'' * '' Scolopodus'' : ''S. insculptus'' * '' Tetraprioniodus'' : ''T. superbus'' * '' Trichonodella'' : ''T. exacta'' * '' Zygognathus'' : ''Z. curvata'' : ''Z. mira''

Trilobites Trilobites (; meaning "three-lobed entities") are extinct marine arthropods that form the class Trilobita. One of the earliest groups of arthropods to appear in the fossil record, trilobites were among the most successful of all early animals, ...

* '' Eobronteus'' : ''E. slocomi''

References

Ordovician Arkansas Ordovician Illinois Ordovician Missouri Katian Sandbian Limestone formations of the United States Ordovician southern paleotemperate deposits Paleontology in Illinois Paleontology in Missouri Sandstone formations of the United States Dolomite formations of the United States Geologic formations of Arkansas Geologic formations of Illinois Geologic formations of Missouri {{US-geologic-formation-stub

Fossil content

Conodont Conodonts, are an extinct group of marine jawless vertebrates belonging to the class Conodonta (from Ancient Greek κῶνος (''kōnos''), meaning " cone", and ὀδούς (''odoús''), meaning "tooth"). They are primarily known from their hard ...s

Trilobites Trilobites (; meaning "three-lobed entities") are extinct marine arthropods that form the class Trilobita. One of the earliest groups of arthropods to appear in the fossil record, trilobites were among the most successful of all early animals, ...

See also

References

Conodont Conodonts, are an extinct group of marine jawless vertebrates belonging to the class Conodonta (from Ancient Greek κῶνος (''kōnos''), meaning " cone", and ὀδούς (''odoús''), meaning "tooth"). They are primarily known from their hard ...
s