Colosteus is an extinct genus of colosteidtetrapod from the Late Carboniferous (late Westphalian stage) of Ohio. Its remains have been found at the Linton site in Saline Township, Ohio, where it is one of the most common tetrapods,[1] and at the Five Points site in Mahoning County, Ohio.[2] It was an elongate, aquatic form with a flattened and pointed head, greatly reduced limbs, two premaxillary tusks, and heavy scalation.[3] It would have reached about 1 m (3.2 ft) in length.[4]
It was originally described by John Strong Newberry in 1856 as a new species of the palaeonisciform fish genusPygopterus. In 1869, Edward Drinker Cope erected a new genus of "batrachian", Colosteus, containing the species C. crassicutatus, C. foveatus, and C. marshii, based on Linton material lent to him by Newberry. Cope later realized that the holotype of his Colosteus crassicutatus was also the holotype of Newberry's earlier Pygopterus scutellatus, and combined the two as Colosteus scutellatus. Colosteus foveatus was later determined to be a junior synonym of Isodectes obtusus, and Colosteus marshii was given its own genus, Ptyonius.[3]
Referencesedit
^Robert W. Hook and Donald Baird (March 1988). "An Overview of the Upper Carboniferous Fossil Deposit at Linton, Ohio". The Ohio Journal of Science. 88 (1): 55–60. hdl:1811/23240.
^Robert W. Hook and Donald Baird (1993). "A new fish and tetrapod assemblage from the Allegheny Group (Late Westphalian, Upper Carboniferous) of eastern Ohio, U.S.A.p". Pollichia-Buch. 29: 143–154.
^ abRobert W. Hook (1983). "Colosteus scutellatus (Newberry), a Primitive Temnospondyl Amphibian from the Middle Pennsylvanian of Linton, Ohio" (PDF). American Museum Novitates (2770): 1–41.
colosteus, extinct, genus, colosteid, tetrapod, from, late, carboniferous, late, westphalian, stage, ohio, remains, have, been, found, linton, site, saline, township, ohio, where, most, common, tetrapods, five, points, site, mahoning, county, ohio, elongate, a. Colosteus is an extinct genus of colosteid tetrapod from the Late Carboniferous late Westphalian stage of Ohio Its remains have been found at the Linton site in Saline Township Ohio where it is one of the most common tetrapods 1 and at the Five Points site in Mahoning County Ohio 2 It was an elongate aquatic form with a flattened and pointed head greatly reduced limbs two premaxillary tusks and heavy scalation 3 It would have reached about 1 m 3 2 ft in length 4 ColosteusTemporal range Late Carboniferous 307 1 305 Ma PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Clade Sarcopterygii Clade Tetrapodomorpha Family Colosteidae Genus ColosteusCope 1871 Species C scutellatus Binomial name Colosteus scutellatusNewberry 1856 as Pygopterus scutellatus Synonyms Pygopterus scutellatus Newberry 1856 Colosteus crassicutatus Cope 1869 Colosteus pauciradiatus Cope 1871 nomen nudum Sauropleura scutellata Cope 1897 Sauropleura pauciradiata Cope 1897 Sauropleura longidentata Moodie 1909 Macrerpeton deani Cope 1916 It was originally described by John Strong Newberry in 1856 as a new species of the palaeonisciform fish genus Pygopterus In 1869 Edward Drinker Cope erected a new genus of batrachian Colosteus containing the species C crassicutatus C foveatus and C marshii based on Linton material lent to him by Newberry Cope later realized that the holotype of his Colosteus crassicutatus was also the holotype of Newberry s earlier Pygopterus scutellatus and combined the two as Colosteus scutellatus Colosteus foveatus was later determined to be a junior synonym of Isodectes obtusus and Colosteus marshii was given its own genus Ptyonius 3 References edit Robert W Hook and Donald Baird March 1988 An Overview of the Upper Carboniferous Fossil Deposit at Linton Ohio The Ohio Journal of Science 88 1 55 60 hdl 1811 23240 Robert W Hook and Donald Baird 1993 A new fish and tetrapod assemblage from the Allegheny Group Late Westphalian Upper Carboniferous of eastern Ohio U S A p Pollichia Buch 29 143 154 a b Robert W Hook 1983 Colosteus scutellatus Newberry a Primitive Temnospondyl Amphibian from the Middle Pennsylvanian of Linton Ohio PDF American Museum Novitates 2770 1 41 Colosteus Facts and Pictures Archived from the original on 2016 03 03 nbsp Paleontology portal nbsp This article about a tetrapodomorph is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Colosteus amp oldid 1220550927, wikipedia, wiki, book, books, library,
