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Karamaites
Taxonomy
Karamaites was named by Sokolov (1965) [Sepkoski's age data: K Albi-u K Ceno-u; Sokolov in Casey, 1965].
It was reranked as Placenticeras (Karamaites) by Cobban et al. (1989).
It was assigned to Placenticeras by Cobban et al. (1989); to Ammonoidea by Sepkoski (2002); and to Placenticeratidae by Roy and Bardhan (2020).
It was reranked as Placenticeras (Karamaites) by Cobban et al. (1989).
It was assigned to Placenticeras by Cobban et al. (1989); to Ammonoidea by Sepkoski (2002); and to Placenticeratidae by Roy and Bardhan (2020).
Species
Synonymy list
Year | Name and author |
---|---|
1965 | Karamaites Sokolov |
1989 | Placenticeras (Karamaites) Cobban et al. p. 20 |
2002 | Karamaites Sepkoski |
2020 | Karamaites Roy and Bardhan p. 383 |
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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.
Diagnosis
Reference | Diagnosis | |
---|---|---|
W. A. Cobban et al. 1989 | This form, treated herein as a subgenus, was proposed as a genus for early placenticeratids that have the fourth lateral lobe smaller than the fifth (Fig. 20), whereas in Placenticeras (Placenticeras), the opposite is true. |
Measurements
part | N | mean | |||||
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shell height | 1 | 76.0 | |||||
shell diameter | 1 | 170.0 | |||||
shell inflation | 1 | 36.0 |
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Source: o = order, c = class | |||||
References: Kiessling 2003, Kiessling 2004 |
Age range: Late/Upper Albian or 105.30000 to 99.60000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Late/Upper Albian | Iran | Placenticeras grossouvrei (174586) |