Site IGM-1971, Tlayúa Quarry (NSF quarry): Late/Upper Albian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Actinopteri
- Pycnodontiformes
- Pycnodontidae
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Tepexichthys aranguthyorum
Applegate 1992
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Reptilia
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Squamata indet.
(Oppel 1811)
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Reynoso 1996 | 1 specimen | ||||||||
| IGM 4185 in IGM-1971-NSF number 1, level Z/10, quadrant 16/5 | ||||||||||
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= Huehuecuetzpalli mixtecus
Reynoso 1998
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Reynoso 1998 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Puebla |
| Coordinates: | 18.6° North, 97.9° West (view map) | ||
| Paleocoordinates: | 16.5° North, 64.2° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Late/Upper Albian | ||
| Age range of interval: | 106.20000 - 100.50000 m.y. ago |
Stratigraphy
| Formation: | Tlayúa | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Middle Member. Cantu-Chapa (1987) recognized the genus Hysteroceras, Mortoniceras, and cf. Anisoceras, which represent a typical late Albian ammonite assemblage of the European zone, being similar to the Mortoniceras inflatum zone (Applegate et al., 2006). | |||||
Lithology and environment
| Primary lithology: | planar lamination,brown,yellow lithified "limestone" |
| Lithology description: 35-meter sequence of honey-colored, micritic, laminated limestone, with characteristic red, hematitic limestone layers that bear a great diversity of invertebrates and vertebrates | |
| Environment: | lagoonal/restricted shallow subtidal |
Taphonomy
| Modes of preservation: | adpression |
| Lagerst�tten type: | conservation |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: Paleontological Museum of the Instituto de Geologia, Universidad Nacional Autonomia de Mexico (IGM UNAM) | |
Metadata
| Also known as: | Tlayua Quarry, Tepexi de Rodrìguez | ||
| Database number: | 221159 | ||
| Authorizer: | M. Clapham, M. Carrano | Enterer: | M. Clapham, M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2021-07-13 23:37:04 | Last modified: | 2023-08-21 13:13:15 |
| Access level: | the public | Released: | 2021-07-13 23:37:04 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 77700. | S. P. Applegate. 1992. A new genus species of pycnodont from the cretaceous (Albian) of Central Mexico, Tepexi de Rodríguez, Puebla. Revista del Instituto de Geología, Universidad Nacional Autónoma de México 10:164-178 [M. Clapham/M. Clapham] |
Secondary references:
| 38032 | V. H. Reynoso. 1998. Huehuecuetzpali mixtecus gen. et sp. nov: a basal squamate (Reptilia) from the Early Cretaceous of Tepexi de Rodríguez, Central México. Philosophical Transactions of the Royal Society of London B, Biological Sciences 353:477-500 [R. Benson/R. Benson] | |
| 85698 | V.-H. Reynoso. 1996. A primitive lizard from the Early Cretaceous of Mexico and the phylogenetic position of early lizards. Journal of Vertebrate Paleontology 16(3, suppl.):60A [M. Carrano/M. Carrano] |