Kings Dyke Brick Pit: Middle Callovian, United Kingdom
collected by Alan Dawn 1969, 1991-1994

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pectinida - Anomiidae
Holwerda et al. 2019
Reptilia - Pterosauria - Rhamphorhynchidae
1 individual
Complete wing-phalanx 1 and associated scapulocoracoid fragment
Reptilia
Holwerda et al. 2019
PETMG R272 (caudal vertebra)
Reptilia - Plesiosauria - Pliosauridae
Cruickshank et al. 1996 1 individual
Holotype: PETMG R338 partial skeleton
see common names

Geography
Country:United Kingdom State/province:England County:Cambridgeshire
Coordinates: 52.6° North, 0.2° West (view map)
Paleocoordinates:36.0° North, 18.6° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period: Jurassic Epoch: Middle Jurassic
Stage: Callovian 10 m.y. bin: Jurassic 5
Key time interval: Middle Callovian
Age range of interval: 165.3 - 161.5 m.y. ago
Stratigraphy
Geological group:Ancholme Formation:Oxford Clay Member:Peterborough
Local section:Peterborough Local bed:Bed 10/11
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: claystone
Includes fossils?Y
Environment:shallow subtidal indet.
Geology comments: The Oxford Clay was deposited in a shallow (10-50 m deep) epeiric sea, with sedimentation interrupted by infrequent tempests which generated numerous thin shell lags, often rich in vertebrates. A combination of storm condensation and a soupy substrate has resulted in a relatively high concentration of exceptionally well preserved skeletons at some levels
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:selective quarrying,mechanical,survey of museum collection
Reason for describing collection:taxonomic analysis
Collectors:Alan Dawn Collection dates:1969, 1991-1994
Collection method comments: The holotype of Pachycostasaurus dawni was prepared using air abrasives (Texas Airsonics Inc. Jetsonic Model BW'7; SS White sodium bicarbonate #4 powder). The postcranial skeleton was prepared using conventional mechanical methods. Dilute Paraloid B72 in acetone was used to seal prepared surfaces, while H.M.G. restoration adhesive (Paraloid in acetone with microbead filler) was used to repair breaks.
Metadata
Also known as:King`s Dyke pit
Database number:92050
Authorizer:R. Butler, P. Mannion, R. Benson Enterer:R. Butler, P. Mannion, R. Benson
Modifier:M. Carrano Research group:vertebrate
Created:2009-10-28 02:46:15 Last modified:2025-02-22 15:12:02
Access level:the public Released:2009-10-28 02:46:15
Creative Commons license:CC0
Reference information

Primary reference:
30893. D. M. Unwin. 1996. The fossil record of Middle Jurassic pterosaurs. In M. Morales (ed.), The Continental Jurassic, Museum of Northern Arizona Bulletin 60:291-304 [R. Butler/R. Butler]

Secondary references:

45312 A. R. I. Cruickshank, D. M. Martill, and L. F. Noe. 1996. A pliosaur (Reptilia, Sauropterygia) exhibiting pachyostosis from the Middle Jurassic of England. Journal of the Geological Society of London 153:873-879 [R. Benson/R. Benson]
67988 F. M. Holwerda, M. Evans, and J. J. Liston. 2019. Additional sauropod dinosaur material from the Callovian Oxford Clay Formation, Peterborough, UK: evidence for higher sauropod diversity. PeerJ 7:e6404:1-25 [P. Mannion/P. Mannion/M. Carrano]