Pant Fissure System 2 (St. Bride's Island): Hettangian - Sinemurian, United Kingdom
collected 1955, 1959
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Kuehneotheriidae
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Kuehneotherium sp.
Kermack et al. 1968
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= Kuehneotherium informal undescribed species
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Gill et al. 2006 | |||||||||
| The "Pant Kuehneotherium" of Mills (1984) | ||||||||||
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Morganucodonta
- Morganucodontidae
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Morganucodon sp.
Kuehne 1949
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= Morganucodon watsoni
Kuehne 1949
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Evans and Kermack 1994 | |||||||||
| Pers. comm. Evans 1/18/2005 | ||||||||||
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Reptilia
- Rhynchocephalia
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Lepidosauria indet.
(Haeckel 1866)
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| Gephyrosaurus, but is not stated explicitly (Evans and Kermack 1994). | ||||||||||
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= Gephyrosaurus sp.
Evans 1980
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Evans and Kermack 1994 | |||||||||
| Pers. comm. Evans 1/18/2005 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United Kingdom | State/province: | Wales | County: | Glamorgan |
| Coordinates: | 51.5° North, 3.6° West (view map) | ||||
| Paleocoordinates: | 37.7° North, 1.8° East | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Jurassic | Epoch: | Early/Lower Jurassic |
| 10 m.y. bin: | Jurassic 1 | ||
| Key time interval: | Hettangian - Sinemurian | ||
| Age range of interval: | 201.40000 - 192.90000 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Fissure fills in Late Carboniferous (Dinantian) limestone. Deposits resulting from Liassic transgression over Carboniferous limestones. Kermack, Mussett, and Rigney (1981) note that a Lower Sinemurian age for the Welsh fissures is supported by evidence in David Pacey's unpublished (1978) thesis. | |||||
Lithology and environment
| Primary lithology: | "limestone" |
| Secondary lithology: | hematitic,gray,green,red,yellow marl |
| Includes fossils? | Y |
| Lithology description: The matrix filling of the fissures ranges from soft clay to hard marl and often is rich in hematite grains. Matrix color varies from red to yellow, green and gray, and the bone can be white to dark gray and brown. Typically bone is white and matrix is red. Plant fossils are often preserved as charcoal (fusain) in gray matrix (also in yellow and red). | |
| Environment: | fissure fill |
| Glacial or sequence phase: | transgressive |
| Geology comments: Fissures in limestone filled with silt, acting as traps for small animals. Localities lie on a small limestone plateau that formed an island (Robinson, 1971) or archipelago in Jurassic times. Triassic to Jurassic subsidence and a transgression by Tethys Ocean gradually resulted in inundation by Early Jurassic (Sinemurian). Such fissure fills formed in open joints in the limestone and are from 0.3 to 1 m wide. | |
Taphonomy
| Modes of preservation: | body,charcoalification |
| Degree of concentration: | -multiple events |
| Size of fossils: | mesofossils,microfossils |
| Preservation of anatomical detail: | good |
| Articulated whole bodies: | none |
| Associated major elements: | none |
| Disassociated major elements: | many |
| Disassociated minor elements: | many |
| Fragmentation: | frequent |
| Temporal resolution: | time-averaged |
Collection methods and comments
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | taxonomic analysis | Collection dates: | 1955, 1959 |
| Collection method comments: University College London (UCL) | |
Metadata
| Also known as: | Pant Quarry, SS 896 760, SS 896760 | ||
| Database number: | 46150 | ||
| Authorizer: | R. Whatley, R. Butler | Enterer: | R. Whatley, R. Butler |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2005-01-05 13:09:36 | Last modified: | 2017-05-19 14:20:38 |
| Access level: | the public | Released: | 2005-01-05 13:09:36 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 4202. | 5% 30500 | K. A. Kermack, F. Mussett, and H.W. Rigney. 1973. The lower jaw of Morganucodon. Zoological Journal of the Linnean Society of London 53(2):87-175 [W. Clyde/J. Finarelli/R. Butler] |
Secondary references:
| 12169 | S. E. Evans and K. A. Kermack. 1994. Assemblages of small tetrapods from the Early Jurassic of Britain. In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods, N. C. Fraser and H.-D. Sues (eds.), Cambridge University Press 271-283 [R. Whatley/R. Whatley/R. Whatley] | |
| 30852 | P. G. Gill, L. K. Saila, I. J. Corfe, T. J. Challands, M. Williams and W. A. Clemens. 2006. The fauna and palaeoenvironment of St. Bride's Island: evidence from the Lower Jurassic fissure fills of South Wales. In P. M. Barrett, S. E. Evans (eds.), Ninth International Symposium on Mesozoic Terrestrial Ecosystems and Biota, Abstracts and Proceedings 48-51 [R. Butler/R. Butler] | |
| 43886 | J. R. E. Mills. 1984. The molar dentition of a Welsh pantothere. Zoological Journal of the Linnean Society 82:189-205 [R. Butler/R. Butler] |