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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Riccardiceras
Taxonomy
Riccardiceras was named by Westermann (1995).
It was assigned to Stephanocerataceae by Moyne and Neige (2004); and to Stephanoceratidae by Galácz (2015), Dietze et al. (2017).
It was assigned to Stephanocerataceae by Moyne and Neige (2004); and to Stephanoceratidae by Galácz (2015), Dietze et al. (2017).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1995 | Riccardiceras Westermann |
| 2004 | Riccardiceras Moyne and Neige |
| 2015 | Riccardiceras Galácz |
| 2017 | Riccardiceras Dietze et al. p. 185 |
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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. †Riccardiceras Westermann 1995
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†Riccardiceras limatum Pompeckj 1897
†Riccardiceras longalvum Vacek 1886
†Riccardiceras perfectum Buckman 1922
†Riccardiceras telegdirothi Géczy 1967
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| shell height | 1 | 36.4 | |||||
| shell diameter | 1 | 140.0 | |||||
| shell inflation | 1 | 77.0 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Middle Aalenian to the top of the Early/Lower Bajocian or 174.70000 to 168.60000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aalenian | Spain (Jaén) | R. telegdirothi (202843) | |
| Aalenian | Italy | R. longalvu (199294) R. longalvum (198948 198949 198950 198952 198953) | |
| Late/Upper Aalenian | Morocco | Docidoceras perfectum (141219) | |
| Middle Aalenian | Thailand | R. longalvum (87467) | |
| Early/Lower Bajocian | Hungary | R. perfectum (220904) | |
| Early/Lower Bajocian | USA (Alaska) | Docidoceras longalvum (175666) | |
| Early/Lower Bajocian | Canada (Yukon) | Docidoceras longalvum (114621 208211) | |
| Early/Lower Bajocian | Spain (Granada) | R. limatum (202845) | |
| Early/Lower Bajocian | Spain (Jaén) | R. telegdirothi (202844) |