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Calycoceras (Newboldiceras) planecostatum
Taxonomy
Acanthoceras planecostata was named by Kossmat (1897) [Acanthoceras newboldi var. planecostata].
It was recombined as Calycoceras (Newboldiceras) planecostatum by Kennedy et al. (1996), Kennedy and Jolkicev (2004).
It was recombined as Calycoceras (Newboldiceras) planecostatum by Kennedy et al. (1996), Kennedy and Jolkicev (2004).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1897 | Acanthoceras planecostata Kossmat p. 9 figs. Pl 2, fig 1 |
| 1996 | Calycoceras (Newboldiceras) planecostatum Kennedy et al. p. 314 figs. Pl 40, fig 3 |
| 2004 | Calycoceras (Newboldiceras) planecostatum Kennedy and Jolkicev p. 376 figs. Pl 3, figs 2-6,8,9 |
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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.
†Calycoceras (Newboldiceras) planecostatum Kossmat 1897
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Middle Cenomanian or 100.50000 to 93.90000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian | France | Calycoceras planecostatum (4065) | |
| Late/Upper Cenomanian | France | Calycoceras planecostatum (82845) | |
| Middle Cenomanian | Bulgaria | Calycoceras planecostatum (174935 174944) |