| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hypasteroceras planulatum
Taxonomy
Asteroceras varians was named by Fucini (1903).
It was recombined as Hypasteroceras planulatum by Geczy and Meister (2007).
It was recombined as Hypasteroceras planulatum by Geczy and Meister (2007).
Synonymy list
| Year | Name and author |
|---|---|
| 1903 | Asteroceras varians Fucini |
| 2007 | Hypasteroceras planulatum Geczy and Meister |
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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.
†Hypasteroceras planulatum Fucini 1903
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell diameter | 3 | 62.5 | 37.1 | 96.5 | 68.1 | 29.7 |
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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 (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Jurassic | Canada (British Columbia) | Asteroceras varians (199686) | |
| Late/Upper Sinemurian | Canada (British Columbia) | Asteroceras varians (198493) | |
| Obtusum | Hungary (Veszprém Megye) | Asteroceras varians (78209) | |
| Obtusum - Raricostatum | Hungary (Veszprém Megye) | Asteroceras varians (78211) | |
| Sinemurian | Canada (British Columbia) | Asteroceras varians (37505) | |
| Late/Upper Sinemurian - Early/Lower Pliensbachian | Hungary | Hypasteroceras planulatum (78691) |