Rancho Soledad tracksite (PASAC): Maastrichtian, Mexico
collected by PASAC 2003
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Pterosauria
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Crocodylia indet.
(Owen 1842)
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= ? Pterosauria indet.
Kaup 1834
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Meyer et al. 2005 | |||||||||
| Manus impressions and one tetradactyl pes print | ||||||||||
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Reptilia
- Hadrosauridae
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Hadrosauridae indet.
Cope 1869
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Reptilia
- Theropoda
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Theropoda indet.
Marsh 1881
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27 specimens | |||||||||
| ?tyrannosaur | ||||||||||
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Reptilia
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Sauropoda indet.
Marsh 1878
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unclassified
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Testudines indet.
Batsch 1788
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= Kouphichnium sp.
Nopcsa 1923
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Meyer et al. 2005 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Coahuila |
| Coordinates: | 27.8° North, 101.2° West (view map) | ||
| Paleocoordinates: | 34.2° North, 80.4° West | ||
| Basis of coordinate: | stated in text | ||
| Altitude: | 337 meters | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | Escondido |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | current ripples calcareous sandstone |
| Secondary lithology: | silty marl |
| Includes fossils? | Y |
| Lithology description: Silty marls and marly clays. Some surfaces show ripple marks. Ripple marks are asymetrical and were formed by a current coming from NW. Also described as "fine-grained calcareous sandstone" for the track bed itself. | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | cast,mold/impression,trace |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | surface (in situ),mechanical,peel or thin section,field collection,observed (not collected) | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Collectors: | PASAC | Collection dates: | Feb 2003 |
Metadata
| Database number: | 53915 | ||
| Authorizer: | M. Carrano | Enterer: | K. Maguire, M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-09-16 10:05:07 | Last modified: | 2022-07-01 09:02:37 |
| Access level: | the public | Released: | 2005-09-16 10:05:07 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 16821. | ETE | E. Jiménez-Hidalgo, R. Hernández-Rivera, and L. Ortega-Palacios. 2004. New Late Cretaceous vertebrate tracks from the Sabinas basin, northeastern Coahuila, northeastern Mexico. Journal of Vertebrate Paleontology 24(3, suppl.):76A [M. Carrano/M. Carrano] |
Secondary references:
| 82044 | V. M. Bravo-Cuevas and R. A. Rodríguez-de la Rosa. 2014. A summary of the Mesozoic vertebrate tracks of Mexico. In H. E. Rivera-Sylva, K. Carpenter, & E. Frey (eds.), Dinosaurs and Other Reptiles from the Mesozoic of Mexico 181-192 [M. Carrano/M. Carrano] | |
| 14524 | ETE | C. A. Meyer, E. D. Frey, B. Thuring, W. Etter, and W. Stinnesbeck. 2005. Dinosaur tracks from the Late Cretaceous Sabinas Basin (Mexico). Current Research in Vertebrate Palaeontolgy. 3rd Annual Meeting of the European Association of Vertebrate Palaeontologists (EAVP). Kaupia 14:41-45 [M. Carrano/K. Maguire/M. Carrano] |
| 55641 | A. A. Ramírez-Velasco, R. Hernández-Rivera, and R. Servin-Pichardo. 2014. The hadrosaurian record from Mexico. In D. A. Eberth & D. C. Evans (ed.), Hadrosaurs 340-360 [M. Carrano/M. Carrano] |