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Neokentroceras
Taxonomy
Neokentroceras was named by Spath (1921) [Sepkoski's age data: K Albi-u]. Its type is Neokentroceras curvicornu.
It was assigned to Dipoloceratidae by Haas (1942); to Brancoceratinae by Howarth (1965), Wright et al. (1996); and to Ammonoidea by Sepkoski (2002).
It was assigned to Dipoloceratidae by Haas (1942); to Brancoceratinae by Howarth (1965), Wright et al. (1996); and to Ammonoidea by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1921 | Neokentroceras Spath p. 306 |
1942 | Neokentroceras Haas p. 46 |
1965 | Neokentroceras Howarth p. 346 |
1996 | Neokentroceras Wright et al. p. 137 |
2002 | Neokentoceras Sepkoski |
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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. †Neokentroceras Spath 1921
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†Neokentroceras costatum Haas 1942
†Neokentroceras costatum tenuis Haas 1942
†Neokentroceras crassicostatum Howarth 1965
†Neokentroceras curvicornu Spath 1922
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†Neokentroceras speciosum rudis Haas 1942
Invalid names: Neokentroceras speciosum Haas 1942 [synonym]
†Neokentroceras curvicornu crassicornutum Reyment 1955
†Neokentroceras gracillimum Kossmat 1895
†Neokentroceras magnum Haas 1942
†Neokentroceras pseudogracillimum Spath 1922
†Neokentroceras singulare Haas 1942
†Neokentroceras subtuberculatum Spath 1922
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†Neokentroceras choffati crassinodosa Haas 1942
Invalid names: Neokentroceras choffati Spath 1922 [synonym]
†Neokentroceras trituberculatum Howarth 1965
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
---|---|---|---|---|---|---|---|
shell height | 2 | 9.39 | 9.00 | 9.80 | 9.40 | 0.566 | |
shell diameter | 2 | 29.1 | 26.5 | 32.0 | 29.2 | 3.89 | |
shell inflation | 2 | 13.6 | 11.6 | 16.0 | 13.8 | 3.11 |
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Source: o = order, c = class | |||||
References: Kiessling 2003, Kiessling 2004 |
Age range: Late/Upper Albian or 106.30000 to 100.50000 Ma
Collections (14 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Late/Upper Albian | Nigeria | N. curvicornu (82766 210681) N. sp. (210166) | |
Late/Upper Albian | Madagascar (Antsiranana) | Hysteroceras gracillimum (98215) | |
Late/Upper Albian | Angola | N. curvicornu, N. crassicostatum (88878) N. curvicornu, N. singulare, N. crassicostatum (88879) N. sp., N. choffati, N. costatum, N. magnum, N. subtuberculatum, N. speciosum, N. curvicornu, N. singulare (83840) N. sp., N. curvicornu (210847) N. subtuberculatum (88880 210730 210739) N. trituberculatum (88881) Schloenbachia gracillima (210888) Schloenbachia lenzi (210851) |