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Janassinae

Chondrichthyes - Petalodontiformes - Janassidae

Discussion

Hodnett, et al. 2024 attribute this to Jaekel 1898, but PBDB does not allow a re-ranked family to belong to the same family, making this a new subfamily.

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Taxonomy
Janassinae was named by Hodnett et al. (2023). It is not extant. Its type is Janassa.

It was assigned to Janassidae by Hodnett et al. (2023).

Synonymy list
YearName and author
2023Janassinae Hodnett et al.

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

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.

Subfm. †Janassinae Hodnett et al. 2023
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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]
G. †Strigilodus Hodnett et al. 2023
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Strigilodus tollesonae Hodnett et al. 2023
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: Wagner 2023, Hendy et al. 2009, Carroll 1988

Age range: base of the Visean to the top of the Wuchiapingian or 346.70000 to 254.14000 Ma

Collections (42 total)


Time interval Ma Country or state Original ID and collection number
Mississippian358.86 - 323.4United Kingdom Chomatodus clavatus (132781 132782) Climaxodus imbricatus (132729)
Visean346.7 - 330.3USA (Kentucky) Janassa sp., Strigilodus tollesonae (238496)
Arnsbergian326.9 - 323.6USA (Montana) Janassa clarki (116654)
Pennsylvanian323.4 - 298.9United Kingdom Janassa bituminosa (137307) Janassa imbricata (137321)
Moscovian315.2 - 307.0Japan Janassa sp. 1, Janassa sp. 2 (90282)
Moscovian315.2 - 307.0USA (South Dakota) Janassa sp. (132341)
Moscovian315.2 - 307.0United Kingdom Janassa bituminosa (137311 137320) Janassa linguaeformis (137319)
Kasimovian - Moscovian307.0 - 307.0United Kingdom Climaxodus linguaeformis (137315)
Kasimovian307.0 - 303.7USA (Nebraska) Janassa maxima (132970) Janassa unguicula (132971)
Sakmarian293.52 - 290.1USA (Kansas) Janassa sp. (130786 130787)
Artinskian - Kungurian290.1 - 274.4USA (Texas) Janassa sp. (85299 85300)
Early/Lower Kazanian274.4 - 266.9Russian Federation (Orenburg) Janassa sp. (189584)
Roadian274.4 - 266.9USA (Wyoming) Janassa unguicula (128880) Janassa unguicula, Janassa angularis (149345)
Guadalupian274.4 - 259.51USA (Wyoming) Janassa unguicula (236340)
Wuchiapingian259.51 - 254.14Germany Janassa angulata (149462 149463) Janassa angulata, Dictea striata, Janassa dictea, Byzenos latipinnatus (149471) Janassa bituminosa (96856 130037 130038 130039 137316 137317) Janassa humboldii (149464) Janassa korni (130272 130273 130274)
Wuchiapingian259.51 - 254.14Greenland Janassa kochi (122142)
Wuchiapingian259.51 - 254.14United Kingdom Janassa bituminosa (131704 149365)
Wuchiapingian259.51 - 254.14United Kingdom (Durham) Janassa bituminosa (131709)
Wuchiapingian259.51 - 254.14USA (Wyoming) Janassa unguicula (90239 236341)