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Janassa

Chondrichthyes - Petalodontiformes - Janassidae

Synonyms
Synonymy list
YearName and author
1840Dictea Münster p. 124
1843Byzenos Münster p. 50
1848Climaxodus McCoy
1889Janassa Woodward p. 34
1902Janassa Hay p. 275
1963Climaxodus Jordan p. 593
1963Dictea Jordan p. 593
1963Janassa Jordan p. 593
1981Janassa Zangerl p. 98
1989Janassa Lund p. 359
2002Janassa Sepkoski
2004Janassa Goto and Okura p. 221
2010Janassa Ginter et al. p. 134

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Life
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
RankNameAuthor
superclassGnathostomata
classChondrichthyes
subclassHolocephali(Bonaparte 1832)
orderPetalodontiformes()
familyJanassidaeJaekel 1899
genusJanassa

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.

G. †Janassa
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Janassa angularis Branson 1916
Janassa bituminosa Schlotheim 1820
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Invalid names: Acrodus larva Agassiz 1839 [synonym], Byzenos latipinnatus Münster 1843 [synonym], Dictea striata Münster 1840 [synonym], Janassa angulata Münster 1839 [synonym], Janassa dictea Münster 1842 [synonym], Janassa humboldii Münster 1839 [synonym]
Janassa brevis Newberry 1856
Janassa clarki Lund 1989
Janassa clavatus M'Coy 1848
Janassa gurleiana Cope 1877
Janassa imbricatus M'Coy 1848
Janassa kochi Nielsen 1932
Janassa korni Weigelt 1930
Janassa linguaeformis Atthey 1868
Janassa maxima Eastman 1903
Janassa ordiana Cope 1881
Janassa strigilina Cope 1881
Janassa unguicula Eastman 1903
Invalid names: Byzenos Münster 1843 [synonym], Climaxodus McCoy 1848 [synonym], Dictea Münster 1840 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Created: 2009-07-21 07:09:25
Modified: 2009-07-21 09:09:25
Source: o = order, subp = subphylum
References: Hendy et al. 2009, Carroll 1988, Wagner 2023

Age range: base of the Arnsbergian to the top of the Wuchiapingian or 326.40000 to 254.17000 Ma

Collections (39 total)


Time interval Ma Country or state Original ID and collection number
Mississippian358.9 - 323.2United Kingdom Chomatodus clavatus (132781 132782) Climaxodus imbricatus (132729)
Arnsbergian326.4 - 318.1USA (Montana) J. clarki (116654)
Pennsylvanian323.2 - 298.9United Kingdom J. bituminosa (137307) J. imbricata (137321)
Moscovian315.2 - 307.0USA (South Dakota) J. sp. (132341)
Moscovian315.2 - 307.0Japan J. sp. 1, J. sp. 2 (90282)
Moscovian315.2 - 307.0United Kingdom J. bituminosa (137311 137320) J. linguaeformis (137319)
Kasimovian - Moscovian307.0 - 307.0United Kingdom Climaxodus linguaeformis (137315)
Kasimovian307.0 - 303.7USA (Nebraska) J. maxima (132970) J. unguicula (132971)
Sakmarian295.5 - 290.1USA (Kansas) J. sp. (130786 130787)
Artinskian - Kungurian290.1 - 272.3USA (Texas) J. sp. (85299 85300)
Early/Lower Kazanian272.5 - 268.0Russian Federation (Orenburg) J. sp. (189584)
Roadian272.3 - 268.8USA (Wyoming) J. unguicula (128880) J. unguicula, J. angularis (149345)
Wuchiapingian259.9 - 254.17United Kingdom (Durham) J. bituminosa (131709)
Wuchiapingian259.9 - 254.17United Kingdom J. bituminosa (131704 149365)
Wuchiapingian259.9 - 254.17USA (Wyoming) J. unguicula (90239)
Wuchiapingian259.9 - 254.17Germany J. angulata (149462 149463) J. angulata, Dictea striata, J. dictea, Byzenos latipinnatus (149471) J. bituminosa (96856 130037 130038 130039 137316 137317) J. humboldii (149464) J. korni (130272 130273 130274)
Wuchiapingian259.9 - 254.17Greenland J. kochi (122142)