Janassa (chimaera)

Chondrichthyes - Petalodontiformes - Janassidae

Synonyms: Byzenos Münster 1843, Climaxodus McCoy 1848, Dictea Münster 1840

Parent taxon: Janassidae according to M. Ginter et al. 2010

See also Goto and Okura 2004, Hancock and Howse 1870, Hay 1902, Jordan 1963, Lund 1989, Sepkoski 2002, Woodward 1889 and Zangerl 1981

Sister taxa: Aganacanthus, Antacanthus, Cholodus, Ctenopetalus, Cymatodus, Dactylodus, Fissodus, Gamphacanthus, Gomphacanthus, Peltodus, Petalodopsis, Phoderacanthus, Platacanthus, Pnigeacanthus, Pristicladodus, Stichacanthus, Thoracodus

Subtaxa: Janassa angularis Janassa bituminosa Janassa brevis Janassa clarki Janassa clavatus Janassa gurleiana Janassa imbricatus Janassa kochi Janassa korni Janassa linguaeformis Janassa maxima Janassa ordiana Janassa strigilina Janassa unguicula Janassa unguiformis

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Type: Trilobites bituminosus

Ecology: nektonic carnivore

Distribution:

• Permian of Germany (13 collections), Greenland (1), the Russian Federation (1), the United Kingdom (3), United States (7: Kansas, Texas, Wyoming)

• Pennsylvanian of the United Kingdom (2)

• Carboniferous of Japan (1), the United Kingdom (4), United States (4: Montana, Nebraska, South Dakota)

• Mississippian of the United Kingdom (3)

Total: 39 collections including 45 occurrences

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Specimen images are retrieved through the ePANDDA API.


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