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Nummocalcar (Platybasis)
Taxonomy
Platybasis was named by Cossmann (1915) [Sepkoski's age data: J Bajo].
It was reranked as Nummocalcar (Platybasis) by Fischer and Weber (1997); it was misspelled as Platybassis by Sepkoski (2002).
It was assigned to Euomphalidae by Knight et al. (1960); to Discohelicidae by Schröder (1995); to Nummocalcar by Fischer and Weber (1997); and to Archaeogastropoda by Sepkoski (2002).
It was reranked as Nummocalcar (Platybasis) by Fischer and Weber (1997); it was misspelled as Platybassis by Sepkoski (2002).
It was assigned to Euomphalidae by Knight et al. (1960); to Discohelicidae by Schröder (1995); to Nummocalcar by Fischer and Weber (1997); and to Archaeogastropoda by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1915 | Platybasis Cossmann |
| 1960 | Platybasis Knight et al. p. 196 |
| 1995 | Platybasis Schröder |
| 1997 | Nummocalcar (Platybasis) Fischer and Weber p. 113 |
| 2002 | Platybassis Sepkoski |
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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.
Subg. †Nummocalcar (Platybasis) Cossmann 1915
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†Nummocalcar (Platybasis) pulchellum d'Orbigny 1850
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: supero = superorder, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: base of the Bathonian to the top of the Middle Callovian or 168.20000 to 161.50000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bathonian | France | Platybassis pulchellus (38738) | |
| Middle Callovian | Israel | Nummocalcar sp. (99127 99129 99134) |