| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Calva (Penecallista) was named by Saul and Popenoe (1992).
It was assigned to Calva by Saul and Popenoe (1992).
It was assigned to Calva by Saul and Popenoe (1992).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1992 | Calva (Penecallista) Saul and Popenoe p. 53 |
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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. †Calva (Penecallista) Saul and Popenoe 1992
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†Calva (Penecallista) marina Saul and Popenoe 1992
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. R. Saul and W. P. Popenoe 1992 | Large veneriform Calva with a narrow but well-angled escutcheon. Hinge with short 2b, widely bifid 3b, and relatively short an- terior laterals. Nymphaea posteriorly salient and having a groove aligned with the posterior socket. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Aberhan et al. 2004 | |||||
Age range: Maastrichtian or 72.20000 to 66.00000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian - Early/Lower Maastrichtian | USA (California) | Calva marina (219083) | |
| Early/Lower Maastrichtian | Mexico (Baja California) | Calva marina (86862) | |
| Maastrichtian | Mexico | Penecallista marina (1372) |