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Bridgeoceras
Taxonomy
Bridgeoceras was named by Ulrich et al. (1943) [Sepkoski's age data: O Trem Sepkoski's reference number: 298]. Its type is Bridgeoceras subannulatum.
It was assigned to Cyclostomiceratidae by Ulrich et al. (1943); to Ellesmeroceratidae by Teichert et al. (1964) and Crick (1981); and to Ellesmerocerida by Sepkoski (2002).
It was assigned to Cyclostomiceratidae by Ulrich et al. (1943); to Ellesmeroceratidae by Teichert et al. (1964) and Crick (1981); and to Ellesmerocerida by Sepkoski (2002).
Species
B. subannulatum (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1943 | Bridgeoceras Ulrich et al. |
| 1964 | Bridgeoceras Teichert et al. p. 134 |
| 1981 | Bridgeoceras Crick p. 227 |
| 2002 | Bridgeoceras 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. †Bridgeoceras Ulrich et al. 1943
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†Bridgeoceras subannulatum Ulrich et al. 1943
Diagnosis
No diagnoses are available