San Juan Raya Formation
| San Juan Raya Formation | |
|---|---|
| Stratigraphic range: Late Valanginian-Early Hauterivian[1] | |
| Type | Formation |
| Lithology | |
| Primary | Shale |
| Other | Mudstone, sandstone |
| Location | |
| Coordinates | 18°24′N 97°42′W / 18.4°N 97.7°W |
| Approximate paleocoordinates | 16°54′N 54°54′W / 16.9°N 54.9°W |
| Region | Puebla |
| Country | Mexico |
  San Juan Raya Formation (Mexico) | |
The San Juan Raya Formation is a geologic formation in Mexico. It dates back to late Valanginian to early Hauterivian stages of the Early Cretaceous period, based on nannoplankton fossils.[2][1] Presence of calcareous nannoplankton and ammonites represent paleoenviornment of this formation represents outer platform enviornment. Footprints of a sauropod and two types of theropods have been reported.[3]
See also
References
- 1 2 González-León, Oscar; Jeremiah, Jason; Schlagintweit, Felix; Bover-Arnal, Telm; Moreno-Bedmar, Josep A.; Mendoza-Rosales, Claudia; Vega, Francisco J. (1 June 2015). "Novel contributions and errata to the work "Morphology and ontogeny of the fossil lobster Meyeria magna M'Coy, 1849 (Astacidae: Mecochiridae) from the Lower Cretaceous (Lower Aptian) of Mexico, United Kingdom and Spain"". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 276 (3): 323–334. doi:10.1127/njgpa/2015/0492.
- ↑ "San Juan Raya Formation". Fossilworks (Paleobiology Database). Retrieved 16 December 2025.
- ↑ Celestino-Hernández, Alan F.; Lozano-Carmona, Diego E.; Jiménez-Moreno, Francisco J.; Agustín-Serrano, Ricardo (2026). "Description of new Theropoda and Sauropoda ichnites from the San Juan Raya Formation (Early Cretaceous) in Santa Ana Teloxtoc and San Martin Atexcal, Puebla, Mexico". Paleontología Mexicana. 15 (2): 373–396. doi:10.22201/igl.05437652e.2026.15.2.442.
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