Earth:Chipping Norton Limestone
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| Chipping Norton Limestone Stratigraphic range: Bathonian ~167–165 Ma | |
|---|---|
 Exposure of the Hook Norton Member at Hook Norton Cutting and Banks | |
| Type | Formation |
| Unit of | Great Oolite Group |
| Underlies | Fuller's Earth & Sharp's Hill Formations |
| Overlies | Grantham, Northampton Sand & Whitby Mudstone Formations |
| Thickness | 0–12 m (0–39 ft) |
| Lithology | |
| Primary | Limestone |
| Other | Mudstone |
| Location | |
| Coordinates | [ ⚑ ] : 52°00′N 1°36′W / 52.0°N 1.6°W |
| Paleocoordinates | [ ⚑ ] 41°36′N 8°48′E / 41.6°N 8.8°E |
| Region | England |
| Country | United Kingdom |
| Extent | North Gloucestershire, north Oxfordshire |
| Type section | |
| Named for | Chipping Norton |
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The Chipping Norton Limestone is a geological formation in the Cotswolds, England. It preserves fossils dating back to the Bathonian (Middle Jurassic).[1][2] Including those of dinosaurs Cetiosaurus, Megalosaurus and Cruxicheiros as well as the Tritylodontid Stereognathus. It primarily consists of ooidal limestone.
Fossil content
The so-called "Scrotum humanum" remains may have come from this formation.[1]
| Dinosaurs | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Alocodon[3] | Indeterminate[3] | Gloucestershire[4] | Actually indeterminate ornithischian remains.[4] | |||
| Cetiosaurus[5] | C. giganteus[6] | Oxfordshire[6] | Actually indeterminate sauropod remains.[6] | |||
| Indeterminate[5] | Actually indeterminate sauropod remains.[6] | |||||
| Dromaeosauridae[7] | Indeterminate[7] | Oxfordshire[7] | Woodeaton Quarry[7] | "Teeth"[7] | Indeterminate teeth. Remains represent three genera.[7] Same species also present in the Forest Marble Formation. | |
| Megalosaurus[5] | Indeterminate[5] | Oxfordshire remains later found to be from an indeterminate theropod.[6] |  | |||
| Omosaurus[6] | O. vetustus[6] | Oxfordshire[6] | Actually indeterminate stegosaur remains.[6] | |||
| Phyllodon[8] | Indeterminate[8] | Gloucestershire[4] | Actually indeterminate ornithischian remains.[4] | |||
| Stegosauria[4] | Indeterminate[4] | Gloucestershire[4] | Previously assigned to Stegosaurus sp. and (tentatively) Omosaurus vetustus.[4] |  | ||
| Streptospondylus[6] | S. cuvieri[6] | Oxfordshire[6] | "Vertebrae [and] limb elements."[9] | Actually indeterminate theropod remains.[6] | ||
| Troodontidae[7] | Indeterminate[7] | Oxfordshire[7] | Hornsleasow Quarry[7] | "Tooth"[7] | Specimen GCLRM G8-23.[7] | |
| Therizinosauroidea[7] | Indeterminate[7] | Oxfordshire[7] | Hornsleasow Quarry[7] | "Tooth"[7] | Specimen GCLRM G167-32. First record of Therizinosauroidea in Europe.[7] | |
Color key
|
Notes Uncertain or tentative taxa are in small text; |
See also
- List of dinosaur-bearing rock formations
- List of fossiliferous stratigraphic units in England
References
- ↑ 1.0 1.1 Weishampel, David B; et al. (2004). "Dinosaur distribution (Middle Jurassic, Europe)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 538–541. ISBN 0-520-24209-2.
- ↑ British Geological Survey. "Chipping Norton Limestone Formation". https://www.bgs.ac.uk/lexicon/lexicon.cfm?pub=CNL.
- ↑ 3.0 3.1 Listed as "cf. Alocodon sp." in "10.3 Gloucestershire, England; 2. Chipping Norton Formation," in Weishampel, et al. (2004). Page 538.
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 "10.3 Gloucestershire, England; 2. Chipping Norton Formation," in Weishampel, et al. (2004). Page 538.
- ↑ 5.0 5.1 5.2 5.3 "10.3 Gloucestershire, England; 2. Chipping Norton Formation" and "10.11 Oxfordshire, England; 2. Chipping Norton Formation," in Weishampel, et al. (2004). Pages 538,540.
- ↑ 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 6.11 6.12 6.13 6.14 "10.11 Oxfordshire, England; 2. Chipping Norton Formation," in Weishampel, et al. (2004). Page 540.
- ↑ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 7.11 7.12 7.13 7.14 7.15 7.16 7.17 Wills, S.; Underwood, C. J.; Barrett, P. M. (2023). "Machine learning confirms new records of maniraptoran theropods in Middle Jurassic UK microvertebrate faunas". Papers in Palaeontology 9 (2): e1487. doi:10.1002/spp2.1487. Bibcode: 2023PPal....9E1487W. https://eprints.bbk.ac.uk/id/eprint/52465/2/Papers%20in%20Palaeontology%20-%202023%20-%20Wills%20-%20Machine%20learning%20confirms%20new%20records%20of%20maniraptoran%20theropods%20in%20Middle%20Jurassic.pdf.
- ↑ 8.0 8.1 Listed as "cf. Phyllodon sp." in "10.3 Gloucestershire, England; 2. Chipping Norton Formation," in Weishampel, et al. (2004). Page 538.
- ↑ "Table 4.1," in Weishampel, et al. (2004). Page 78.
Bibliography
- Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.
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