| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Protarca
Taxonomy
Protarca was named by Stephenson (1923) [Sepkoski's age data: K Ceno K Maes Sepkoski's reference number: 914].
It was assigned to Arcullaeinae by Vokes (1980); and to Arcoida by Sepkoski (2002).
It was assigned to Arcullaeinae by Vokes (1980); and to Arcoida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Mikkelsen and Bieler 2008 | |||||
Age range: base of the Cenomanian to the top of the Santonian or 100.50000 to 83.60000 Ma
Collections (44 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Cenomanian | USA (Texas) | P. tramitensis (4640 4641 4642 4645 4646 4657 4658 4659 6480 6483 6484 6486 6487 6488 6493 6494 6497 6498 6499 6522 6525 6526 6527 6530 6533 6534 6535 6539 6548 6555 6562 6563 6571 6576 6578 6583 6618 6624 6630 6632 6648) | |
| Middle Cenomanian - Late/Upper Cenomanian | USA (Texas) | P. tramitensis (6633 6634) | |
| Santonian | USA (Georgia) | P. obliqua (5161) |