Casa de Fidencio, Huizachal Canyon: Pliensbachian, Mexico
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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| 1 specimen | ||||||||||
| IGM 6624, articulated sacrum and pelvis | ||||||||||
| Reynoso and Cruz 2014 | ||||||||||
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unclassified
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| Montellano et al. 2008 | 1 specimen | |||||||||
| IGM 6622, partial right dentary | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Mexico | State/province: | Tamaulipas |
| Coordinates: | 26.6° North, 99.5° West (view map) | ||
| Paleocoordinates: | |||
| Basis of coordinate: | based on nearby landmark | ||
| Altitude: | 146 meters | ||
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Early Jurassic |
| Stage: | Pliensbachian | 10 m.y. bin: | Jurassic 2 |
| Key time interval: | Pliensbachian | ||
| Age range of interval: | 192.9 - 184.2 m.y. ago | ||
| Age estimate: | maximum 189 ± 0.2 Ma (U/Pb) |
Stratigraphy
| Geological group: | Huizachal | Formation: | La Boca | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: lower part of the La Boca Formation; originally dated as Middle Jurassic, but U-Pb isotopic data from zircon in a volcaniclastic rock from the lowest part of the formation yields an age of 189 plus/minus 0.2 Ma. The fossil-bearing sedimentary rocks are above this unit and conformable with it (see Montellano et al. 2008: JVP 28: 1130–1143). | |||||
Lithology and environment
| Primary lithology: | mudstone |
| Includes fossils? | Y |
| Environment: | "floodplain" |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: IGM: Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, Mexico | |
Metadata
| Also known as: | Fidencio Hideaway | ||
| Database number: | 136970 | ||
| Authorizer: | R. Butler, M. Carrano | Enterer: | R. Butler, M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2012-12-07 20:22:21 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2012-12-07 20:22:21 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 36121. | R. C. Munter and J. M. Clark. 2006. Theropod dinosaurs from the Early Jurassic of Huizachal Canyon, Mexico. In M. T. Carrano, T. J. Gaudin, R. W. Blob, J. R. Wible (eds.), Amniote paleobiology: perspectives on the evolution of mammals, birds, and reptiles. University of Chicago Press, Chicago 53-75 [O. Rauhut/O. Rauhut] |
Secondary references:
| 81945 | J. R. Guzmán-Gutiérrez and H. E. Rivera-Sylva. 2014. History of the discoveries of dinosaurs and Mesozoic reptiles in Mexico. In H. E. Rivera-Sylva, K. Carpenter, & E. Frey (eds.), Dinosaurs and Other Reptiles from the Mesozoic of Mexico 1-12 [M. Carrano/M. Carrano] | |
| 43805 | M. Montellano, J. A. Hopson, and J. M. Clark. 2008. Late Early Jurassic mammaliaforms from Huizachal Canyon, Tamaulipas, Mexico. Journal of Vertebrate Paleontology 28(4):1130-1143 [R. Butler/R. Butler] | |
| 82053 | V. H. Reynoso and J. A. Cruz. 2014. Mesozoic lepidosauromorphs of Mexico: a review and discussion of taxonomic assignments. In H. E. Rivera-Sylva, K. Carpenter, & E. Frey (eds.), Dinosaurs and Other Reptiles from the Mesozoic of Mexico 44-78 [M. Carrano/M. Carrano] |