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Arcoscalpellum withersi
Taxonomy
Arcoscalpellum withersi was named by Collins (1973). It is not extant. Its type locality is Barr Pasture (Harned collection), which is in a Maastrichtian coastal siliciclastic in the Ripley Formation of Mississippi.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1973 | Arcoscalpellum withersi Collins |
| 1986 | Arcoscalpellum withersi Canis and Zullo p. 188 figs. 3.7-3.11 |
| 1987 | Arcoscalpellum withersi Zullo p. 338 figs. 3.22-3.29 |
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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.
†Arcoscalpellum withersi Collins 1973
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Late/Upper Campanian to the top of the Late/Upper Maastrichtian or 83.60000 to 66.00000 Ma
Collections (14 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | USA (Delaware) | Arcoscalpellum withersi (83133) | |
| Late/Upper Campanian - Early/Lower Maastrichtian | USA (Mississippi) | Arcoscalpellum withersi (210594) | |
| Early/Lower Maastrichtian | USA (Mississippi) | Arcoscalpellum withersi (172643 210595 210601 type locality: 210602 210603 210604 210605 210608) | |
| Late/Upper Maastrichtian | USA (Mississippi) | Arcoscalpellum withersi (210598 210607) | |
| Late/Upper Maastrichtian | USA (Alabama) | Arcoscalpellum withersi (210619 210620) |