White Limestone Formation
| White Limestone Formation | |
|---|---|
| Stratigraphic range: | |
.jpg) White Limestone Formation exposed at Kirtlington Quarry | |
| Type | Geological formation |
| Unit of | Great Oolite Group |
| Sub-units | Shipton Member, Ardley Member, Bladon Member |
| Underlies | Forest Marble Formation |
| Overlies | Hampen Formation, Rutland Formation |
| Thickness | Up to 30 m |
| Lithology | |
| Primary | Limestone |
| Other | Mudstone Clay Marl |
| Location | |
| Region | England |
| Country | United Kingdom |
| Extent | Gloucestershire |
| Type section | |
| Location | Shipton-on-Cherwell Quarry |
| Thickness at type section | Approximately 20 m |
The White Limestone Formation is a Bathonian geologic formation in the United Kingdom, dating to the Middle Jurassic, 168.3 to 166.1 million years ago.[1] Fossil sauropod tracks have been reported from the formation.[2] It is the lateral equivalent of the Blisworth Limestone. It predominantly consists of grey-yellow limestone, typically wackestone and packstone with subordinate ooidal grainstone. The Woodeaton Quarry locality has yielded microvertebrates.[3]
Paleobiota
For the diverse terrestrial biota of the Kirtlington Mammal Bed, which is on the boundary between the White Limestone and the Forest Marble Formation, see Forest Marble Formation#Paleobiota
Dinosaurs
| Dinosaurs reported from the White Limestone Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Proceratosaurus | P. bradleyi | Minchinhampton | Partial skull and lower jaws | A proceratosaurid theropod, other authors have attributed the strata the specimen was found in to the Forest Marble Formation.[4] |  | |
| Dromaeosauridae | Indeterminate | Woodeaton Quarry | Bed 26, Bladon Member | Teeth | ||
| Thyreophora | ||||||
| cf. Paronychodon | ||||||
Mammaliamorphs
| Mammaliamorphs reported from the White Limestone Formation | |||||||
|---|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images | |
| Amphitheriidae | Indeterminate | Woodeaton Quarry | Bed 26, Bladon Member | Tooth | |||
| Phascolotherium | P. bucklandi | Eutriconodont | |||||
| Hahnotherium | H. antiquum | Multituberculata | |||||
| Simpsonodon | S. oxfordensis | Docodont | |||||
| Woodeatonia[5] | W. parva | Allotherian | |||||
| Butlerodon[5] | B. quadratus | Allotherian | |||||
| Kermackodon[5] | K. oxfordensis | Allotherian, formerly placed in Eleutherodon[5] | |||||
| Stereognathus | Indeterminate | Tritylodontid | |||||
See also
Footnotes
- ^ "The BGS Lexicon of Named Rock Units — Result Details White Limestone Formation". British Geological Survey. Retrieved 17 April 2017.
- ^ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- ^ Wills, Simon; Bernard, Emma Louise; Brewer, Philippa; Underwood, Charlie J.; Ward, David J. (1 April 2019). "Palaeontology, stratigraphy and sedimentology of Woodeaton Quarry (Oxfordshire) and a new microvertebrate site from the White Limestone Formation (Bathonian, Jurassic)". Proceedings of the Geologists' Association. 130 (2): 170–186. doi:10.1016/j.pgeola.2019.02.003. ISSN 0016-7878. S2CID 135409990.
- ^ "10.3 Gloucestershire, England; 4. Forest Marble Formation," in Weishampel, et al. (2004). Page 538.
- ^ a b c d Mao, Fangyuan; Brewer, Philippa; Hooker, Jerry J.; Meng, Jin (31 December 2022). "New allotherian specimens from the Middle Jurassic Woodeaton Quarry (Oxfordshire) and implications for haramiyidan diversity and phylogeny". Journal of Systematic Palaeontology. 20 (1): 1–37. doi:10.1080/14772019.2022.2097021. ISSN 1477-2019. S2CID 251708147.
References
- Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.