Cromhall Quarry (1990 fill): Carnian, United Kingdom
collected by N. Fraser 1990
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
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Terrestrisuchus sp.
Crush 1984
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Rauisuchiformes indet.
Parrish 1993
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Fraser et al. 2002 | |||||||||
Reptilia
- Guaibasauridae
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? Dinosauria indet.
Owen 1842
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(1 measurement) | ||||||||||
= Agnosphitys cromhallensis n. gen., n. sp.
Fraser et al. 2002
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Fraser et al. 2002 | |||||||||
see common names |
Geography
Country: | United Kingdom | State/province: | England | County: | Gloucestershire |
Coordinates: | 51.6° North, 2.4° West (view map) | ||||
Paleocoordinates: | 20.6° North, 6.5° East | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | small collection |
Time
Period: | Triassic | Epoch: | Late/Upper Triassic |
Stage: | Carnian | 10 m.y. bin: | Triassic 3 |
*Period: | Late/Upper Triassic | ||
*International age/stage: | Early/Lower Carnian - Late/Upper Rhaetian | ||
Key time interval: | Carnian | ||
Age range of interval: | 237.00000 - 228.00000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Whiteside & Marshall (2008) argue for a Rhaetian age based upon the shared presence of Planocephalosaurus with deposits at Tytherington dated as Rhaetian on the basis of palynomorphs, and the presence of fish remains that are typical of the Rhaetian Penarth Group.
Morton et al. 2017: biostratigraphy of conchostracans from the fissure deposits of Cromhall Quarry also support a late Rhaetian age |
Lithology and environment
Primary lithology: | not reported |
Environment: | fissure fill |
Taphonomy
Modes of preservation: | body |
Degree of concentration: | concentrated |
Size of fossils: | macrofossils,mesofossils |
Preservation of anatomical detail: | variable |
Abundance in sediment: | common |
Disassociated major elements: | many |
Disassociated minor elements: | many |
Fragmentation: | frequent |
Temporal resolution: | condensed |
Collection methods and comments
Collection methods: | bulk,chemical,mechanical,field collection | ||
Reason for describing collection: | taxonomic analysis | ||
Collectors: | N. Fraser | Collection dates: | 1990 |
Collection method comments: VMNH: Virginia Museum of Natural History |
Metadata
Also known as: | Slickstones | ||
Database number: | 25298 | ||
Authorizer: | M. Carrano | Enterer: | M. Carrano |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2002-09-07 17:46:51 | Last modified: | 2024-02-16 10:25:15 |
Access level: | the public | Released: | 2002-09-07 17:46:51 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
17019. | ETE | N. C. Fraser and K. Padian. 1995. Possible basal dinosaur remains from Britain and the diagnosis of the Dinosauria. Journal of Vertebrate Paleontology 15(3, suppl.):30A [M. Carrano/M. Carrano] |
Secondary references:
7095 | N. C. Fraser, K. Padian, G. M. Walkden and A. L. M. Davis. 2002. Basal dinosauriform remains from Britain and the diagnosis of the Dinosauria. Palaeontology 45(1):79-95 [M. Carrano/M. Carrano/M. Carrano] | |
87573 | M. J. Simms and K. Drost. 2024. Caves, dinosaurs and the Carnian Pluvial Episode: Recalibrating Britain’s Triassic karst ‘fissures'. Palaeogeography, Palaeoclimatology, Palaeoecology 638:112041 [M. Carrano/M. Carrano] |