White Limestone Formation

White Limestone Formation
Stratigraphic range: Bathonian PreꞒ Ꞓ O S D C P T J K Pg N ↓
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	UK
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

Dinosaurs

Dinosaurs reported from the White Limestone Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
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[4]	W. parva				Allotherian
Butlerodon[4]	B. quadratus				Allotherian
Kermackodon[4]	K. oxfordensis				Allotherian, formerly placed in Eleutherodon[4]
Stereognathus	Indeterminate				Tritylodontid

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with sauropodomorph tracks
    • Sauropod tracks

Footnotes

1. "The BGS Lexicon of Named Rock Units — Result Details White Limestone Formation". British Geological Survey. Retrieved 17 April 2017.
2. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
3. 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.
4. 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.