The Kokomo Formation is a

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 ...

Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...

. It preserves fossils dating back to the Silurian

period Period may refer to: Common uses * Era, a length or span of time * Full stop (or period), a punctuation mark Arts, entertainment, and media * Period (music), a concept in musical composition * Periodic sentence (or rhetorical period), a concept ...

, most notably sea scorpions.

List of Known Taxa

Eurypterids

* ''Carcinosoma newlini'' * ''Kokomopterus longicaudatus''''Morphology, Taxonomy, and Classification of the Order Eurypterida Burmeister, 1843 V. P. Tollerton, Jr. Journal of Paleontology Vol. 63, No. 5 (Sep., 1989), pp. 642-657'' * ''Erieopterus limuloides''''Dunlop, J. A., Penney, D. & Jekel, D. 2015. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern, online at http://wsc.nmbe.ch, version 16.0 http://www.wsc.nmbe.ch/resources/fossils/Fossils16.0.pdf (PDF).'' * ''Erieopterus ranilarva'' * ''Onychopterella kokomensis'''''' * ''Leperditia ohioensis''

Brachiopods

* '' Lingula'' sp. * ''Pentamerus divergens'' * ''Schuchertella interstriata''

Cnidarians

* ''Halysites ''

References

Sources