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Posidonioceramus
Taxonomy
Posidonioceramus was named by Walaszczyk and Cobban (2016).
It was assigned to Inoceramidae by Walaszczyk and Cobban (2016).
It was assigned to Inoceramidae by Walaszczyk and Cobban (2016).
Synonymy list
| Year | Name and author |
|---|---|
| 2016 | Posidonioceramus Walaszczyk and Cobban pp. 55 - 56 |
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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. †Posidonioceramus Walaszczyk and Cobban 2016
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†Posidonioceramus athabaskensis McLearn 1943
†Posidonioceramus dunveganensis McLearn 1926
†Posidonioceramus goodrichensis McLearn 1945
†Posidonioceramus merewetheri Walaszczyk and Cobban 2016
†Posidonioceramus moberliensis McLearn 1943
†Posidonioceramus nahwisi McLearn 1931
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| I. Walaszczyk and W. A. Cobban 2016 | Medium- to large-sized inoceramid, weakly to strongly prosogyrous, with anterior and posterior auricles; umbo submedial; ligamental plate relatively small, elongated, with narrow, closely spaced resilifers. Ornament composed of weakly to moderately well-developed concentric rugae. |
Measurements
No measurements are available
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| Source: f = family, subc = subclass, c = class | |||||
| References: Eaton 1871, Kiessling 2003, Aberhan et al. 2004 | |||||
Age range: base of the Late/Upper Albian to the top of the Early/Lower Cenomanian or 106.30000 to 93.90000 Ma
Collections (19 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Albian | Colombia | Inoceramus dunveganensis (68538 68539 68540 68541 68542 68543 68544 68545) | |
| Late/Upper Albian | Canada (Alberta) | Posidonia nahwisi (87383) | |
| Late/Upper Albian | Canada (British Columbia) | P. goodrichensis (234729) | |
| Late/Upper Albian - Early/Lower Cenomanian | USA (Montana) | P. goodrichensis (234731) | |
| Cenomanian | Canada (Alberta) | Inoceramus dunveganensis, Inoceramus athabaskensis (87568) | |
| Early/Lower Cenomanian | Canada (Alberta) | Inoceramus nahwisi (234728) | |
| Early/Lower Cenomanian | USA (Montana) | P. dunveganensis (234725) P. goodrichensis, P. moberliensis (234733) P. merewetheri (234734) | |
| Early/Lower Cenomanian | Canada (British Columbia) | P. moberliensis (234732) | |
| Middle Cenomanian | Canada (Alberta) | Inoceramus dunveganensis (200670 200671) |