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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Asteroceras obtusum
Taxonomy
Ammonites obtusus was named by Sowerby (1817).
It was recombined as Asteroceras obtusum by Schlegelmilch (1976).
It was recombined as Asteroceras obtusum by Schlegelmilch (1976).
Synonymy list
| Year | Name and author |
|---|---|
| 1817 | Ammonites obtusus Sowerby |
| 1843 | Ammonites obtusus d'Orbigny p. 47 |
| 1976 | Asteroceras obtusum Schlegelmilch |
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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.
†Asteroceras obtusum Sowerby 1817
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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: Obtusum or 199.50000 to 192.90000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Sinemurian | France (Bourgogne-Franche-Comté) | Asteroceras obtusum (234373) | |
| Late/Upper Sinemurian | China (Guangdong) | Asteroceras obtusum (59654 59655) | |
| Late/Upper Sinemurian | United Kingdom (England) | Ammonites obtusus (227267) | |
| Late/Upper Sinemurian | Chile | Asteroceras obtusum (210180) | |
| Obtusum | United Kingdom (England) | Asteroceras obtusum (114638) | |
| Sinemurian | United Kingdom (Gloucestershire) | Asteroceras obtusum (204148) |