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Parengonoceras roemeri
Taxonomy
Sphenodiscus roemeri was named by Cragin (1893) [DISTRIBUTION: Albian; Gulf Coastal Plain.]. It is not a trace fossil.
It was recombined as Parengonoceras roemeri by Kennedy et al. (1998).
It was recombined as Parengonoceras roemeri by Kennedy et al. (1998).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1893 | Sphenodiscus roemeri Cragin p. 235 figs. pl. 46, fig. 1 |
| 1940 | Knemiceras nodosum Scott p. 1069 figs. pl. 67, fig. 6; pl. 68, fig. 6 |
| 1940 | Knemiceras azlense Scott p. 1070 figs. pl. 66, figs. 5, 6, 10; pl. 68, fig. 2 |
| 1940 | Knemiceras trinitense Scott p. 1071 figs. pl. 66, fig. 7; pl. 68, fig. 3. |
| 1998 | Parengonoceras roemeri Kennedy et al. p. 21 |
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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.
†Parengonoceras roemeri Cragin 1893
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Invalid names: Knemiceras azlense Scott 1940 [synonym], Knemiceras nodosum Scott 1940 [synonym], Knemiceras trinitense Scott 1940 [synonym]
Diagnosis
No diagnoses are available