ALn-8: Late/Upper Campanian - Early/Lower Maastrichtian, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
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Peritresius martini n. sp.
Gentry et al. 2018
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| ALMNH 6191 | ||||||||||
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Peritresius ornatus
(Leidy 1856)
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| ALMNH 8988 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Alabama | County: | Lowndes |
| Coordinates: | 32.1° North, 86.9° West (view map) | ||||
| Paleocoordinates: | 34.9° North, 60.5° West | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Key time interval: | Late/Upper Campanian - Early/Lower Maastrichtian | Foram zone: | Gansserina gansseri |
| Age range of interval: | 83.60000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | Ripley | ||||
| Stratigraphy comments: from lower Ripley Formation, upper Campanian
Ripley Formation is generally considered Maastrichtian age e.g. see Stringer et al. 2020 and Gifford et al. 2020 |
Lithology and environment
| Primary lithology: | sandstone |
| Secondary lithology: | claystone |
| Lithology description: Thin indurated beds of fossiliferous sandstone, sandy calcareous clay, and massive, micaceous, glauconitic, fossiliferous fine sand; fossils primarily from phosphatic concretions | |
| Environment: | marine indet. |
| Geology comments: outer neritic to nearshore environment | |
Taphonomy
| Modes of preservation: | body,concretion |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (float) |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 192763 | ||
| Authorizer: | P. Holroyd | Enterer: | P. Holroyd |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2018-04-19 00:03:37 | Last modified: | 2022-05-04 04:28:01 |
| Access level: | the public | Released: | 2018-04-19 00:03:37 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 65441. | A. D. Gentry, J. F. Parham, D. J. Ehret and J. A. Ebersole. 2018. A new species of Peritresius Leidy, 1856 (Testudines: Pan-Cheloniidae) from the Late Cretaceous (Campanian) of Alabama, USA, and the occurrence of the genus within the Mississippi Embayment of North America. PLoS ONE 13:e0195651:1-24 [P. Holroyd/P. Holroyd/P. Mannion] |