| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Stehnocephalites crassicostatus
Taxonomy
Stehnocephalites crassicostatus was named by Riccardi and Westermann (1991).
Synonymy list
| Year | Name and author |
|---|---|
| 1991 | Stehnocephalites crassicostatus Riccardi and Westermann |
| 1998 | Stehnocephalites crassicostatus Parent p. 108 figs. 24A-F, 25A-E, 26A-D |
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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.
†Stehnocephalites crassicostatus Riccardi and Westermann 1991
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 29.1 | 18.0 | 45.8 | 28.4 | 9.17 | |
| shell diameter | 6 | 69.4 | 40.0 | 106.9 | 72.1 | 22.7 | |
| shell inflation | 6 | 18.1 | 9.00 | 28.9 | 18.4 | 7.04 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Late/Upper Bathonian to the top of the Early/Lower Callovian or 168.20000 to 161.50000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Bathonian | Argentina (Neuquen) | Stehnocephalites crassicostatus (158973 158976) | |
| Early/Lower Callovian | Argentina (Neuquen) | Stehnocephalites crassicostatus (158982) |