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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Spinaptychus (ammonoid aptychus)
Discussion
Aptychus
Taxonomy
Spinaptychus was named by Trauth (1927). It is not extant. It is considered to be a form taxon.
It was assigned to Ammonoidea by Arkell et al. (1957).
It was assigned to Ammonoidea by Arkell et al. (1957).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Spinaptychus Trauth pp. 200, 220 |
| 1957 | Spinaptychus Arkell et al. p. L469 |
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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. †Spinaptychus Trauth 1927 [ammonoid aptychus]
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†Spinaptychus spinosus Cox 1926 [ammonoid aptychus]
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: Late/Upper Santonian or 85.80000 to 83.50000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Cretaceous | USA (Texas) | Spinaptychus sternbergi (216532 216534 216535) | |
| Late/Upper Santonian | USA (Mississippi) | Spinaptychus sp. (3584) |