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Chagrinia information


Chagrinia
Temporal range: Famennian
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Sarcopterygii
Class: Actinistia
Genus: †Chagrinia
Schaeffer, 1962
Species:
†C. enodis
Binomial name
†Chagrinia enodis
Schaeffer, 1962

Chagrinia is an extinct genus of prehistoric marine coelacanth which lived during the Late Devonian period.

The holotype, Chagrinia enodis, was found eroded out of the Chagrin Shale in the Euclid Creek Reservation in Cleveland, Ohio, in 1960 by a local citizen.[1][2]

The fossil material is poorly preserved, but the species appears to exhibit a slender body, narrow caudal peduncle, symmetrical tail, and fin rays that outnumber the endochondral supports. The scales appeared to be unornamented, but that may be a preservational artefact.[3]

Some studies have placed it with the Diplocercidae,[4] while others have found it to be more basal.[5]

  1. ^ Schaeffer, Bob (1962). A coelacanth fish from the Upper Devonian of Ohio. Scientific Publications of the Cleveland Museum of Natural History, New Series (Report). Cleveland: Cleveland Museum of Natural History. pp. 1–13.
  2. ^ Carr, Robert K.; Jackson, Gary L. (2010). "The Vertebrate Fauna of the Cleveland Member (Famennian) of the Ohio Shale". In Hannibal, J.T. (ed.). Guide to the Geology and Paleontology of the Cleveland Member of the Ohio Shale. Ohio Geological Survey Guidebook 22. Cleveland: Ohio Geological Survey. p. 10.
  3. ^ Forey 1997, pp. 346–347.
  4. ^ Gess, Robert W.; Coates, Michael I. (2015). "Fossil juvenile coelacanths from the Devonian of South Africa shed light on the order of character acquisition in actinistians: Fossil Coelacanths from the South African Devonian". Zoological Journal of the Linnean Society. 175 (2): 360–383. doi:10.1111/zoj.12276.
  5. ^ Cloutier, Richard (1996). "Morphology, characters, and the interrelationships of basal sarcopterygians" (PDF). Interrelationships of Fishes.

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Chagrinia

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Chagrinia is an extinct genus of prehistoric marine coelacanth which lived during the Late Devonian period. The holotype, Chagrinia enodis, was found...

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Coelacanth

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Libys

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Miguashaia

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Whiteia

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Mylacanthus

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Styloichthys

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Chinlea

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Youngichthys

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List of sarcopterygian genera

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Caridosuctor Lund, Lund 1984 Valid. Mississippian Ceratodus Agassiz 1837 Valid. Chagrinia Schaeffer 1962 Valid. Late Devonian Changxingia Wang, Liu 1981 Valid....

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Lualabaea

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Foreyia

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Holopterygius

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Ticinepomis

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Rhabdoderma

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Trachymetopon

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Shoshonia

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Holophagus

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Megalocoelacanthus

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Coelacanthus

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