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Janassa clarki

Chondrichthyes - Petalodontiformes - Janassidae

Taxonomy
Janassa clarki was named by Lund (1989). Its type specimen is MV 7697, a tooth (tooth in part and counterpart), and it is a compression fossil. Its type locality is MV 7106, Supercrop Quarry, Bear Gulch, which is in an Arnsbergian lagoonal/restricted shallow subtidal limestone in the Heath Formation of Montana.

Synonymy list
YearName and author
1989Janassa clarki Lund p. 359

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
RankNameAuthor
classChondrichthyes
subclassHolocephali(Bonaparte 1832)
orderPetalodontiformes()
familyJanassidaeJaekel 1899
genusJanassa
speciesclarki

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
No diagnoses are available