Smallmouth Sands (BMNH): Late/Upper Kimmeridgian, United Kingdom
collected by R. I. Smith, R. Damon 1873

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Testudines - Thalassemydidae
Pelobatochelys blakii n. sp. Seeley 1875
Anquetin et al. 2017
Reptilia
Cetiosaurus humerocristatus n. sp. Lydekker 1888
1 specimen
recombined as Duriatitan humerocristatus
"Ceteosaurus humero-cristatus"; BMNH 44635
Gigantosaurus megalonyx Seeley 1869
Damon 1884
nomen dubium belonging to Sauropoda
could be same as Duriatitan materials
Crocodylomorpha indet. (Hay 1930)
Grange and Benton 1996
Teeth and scutes
Reptilia - Metriorhynchidae
Geosaurus sp. Cuvier 1824
Young et al. 2013
NHMUK PV R36638, isolated tooth
Reptilia
Steneosaurus manselii Hulke 1870
Damon 1884
NHMUK PV R1774 (tooth)
    = Machimosaurus sp.
Young and Steel 2013
Bivalvia - Ostreida - Gryphaeidae
Ostrea deltoidea Sowerby 1818
Damon 1884
synonym of Deltoideum (Deltoideum) delta
see common names

Geography
Country:United Kingdom State/province:England County:Dorset
Coordinates: 50.6° North, 2.5° West (view map)
Paleocoordinates:41.3° North, 7.6° East
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Late/Upper Jurassic
Stage:Kimmeridgian 10 m.y. bin:Jurassic 5
*Period:Late/Upper Jurassic
Key time interval:Late/Upper Kimmeridgian Ammonoid zone: Rasenia cymodoce
Age range of interval:152.20000 - 149.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Kimmeridge Clay Member:Lower
Stratigraphic resolution:group of beds
Stratigraphy comments: ?mutabilis Zone or cymodoce zone; "Gigantosaurus" materials from the "gritty clay bed" = Wyke Siltstone
Lithology and environment
Primary lithology:concretionary silty claystone
Includes fossils?Y
Lithology description: Duriatitan materials described as "enveloped in large septarian masses", but whether sandstone or claystone is not indicated
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:poor
Articulated whole bodies:none
Associated major elements:none
Disassociated major elements:all
Disassociated minor elements:none
Temporal resolution:snapshot
Collection methods and comments
Collection methods:mechanical,field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:BMNH
Collectors:R. I. Smith, R. Damon Collection dates:1873
Metadata
Also known as:Ceteosaurus humero-cristatus type
Database number:26795
Authorizer:M. Carrano, P. Mannion, E. Vlachos Enterer:M. Carrano, J. Tennant, E. Vlachos, P. Mannion
Modifier:J. Tennant Research group:vertebrate
Created:2002-11-01 07:56:12 Last modified:2013-07-02 06:34:57
Access level:the public Released:2002-11-01 07:56:12
Creative Commons license:CC BY
Reference information

Primary reference:
7423. J. W. Hulke. 1874. Note on a very large saurian limb-bone adapted for progression upon land, from the Kimmeridge Clay of Weymouth, Dorset. Quarterly Journal of the Geological Society of London 30:16-17 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

63585 J. Anquetin, C. Puntener, and W. G. Joyce. 2017. A review of the fossil record of turtles of the Clade Thalassochelydia. Bulletin of the Peabody Museum of Natural History 58(3):317-369 [E. Vlachos/E. Vlachos/M. Uhen]
15587ETE M. J. Benton and P. S. Spencer. 1995. Fossil Reptiles of Great Britain. Chapman & Hall, London 1-386 [M. Carrano/K. Maguire/J. Tennant]
17003ETE W. T. Blows. 1995. The Early Cretaceous brachiosaurid dinosaurs Ornithopsis and Eucamerotus from the Isle of Wight, England. Palaeontology 38(1):187-197 [M. Carrano/M. Carrano/M. Carrano]
38668 R. F. Damon. 1884. Handbook to the Geology of Weymouth, Portland, and Coast of Dorsetshire, from Swanage to Bridport-on-the-Sea, with Natural History of and Archaeological Notes. New and Enlarged Edition. Edward Stanford, London 1-250 [M. Carrano/M. Carrano]
31216ETE J. B. Delair. 1960. The Mesozoic reptiles of Dorset. Part two. Proceedings of the Dorset Natural History and Archaeological Society 80:52-90 [M. Carrano/M. Carrano/R. Benson]
46685 D. R. Grange and M. J. Benton. 1996. Kimmeridgian metriorhynchid crocodiles from England. Palaeontology 39(2):497-514 [P. Mannion/J. Tennant]
14142ETE R. Lydekker. 1888. Catalogue of the Fossil Reptilia and Amphibia in the British Museum (Natural History). Part I. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum (Natural History), London 1-309 [M. Carrano/M. Carrano/M. Uhen]
14158ETE R. Lydekker. 1888. Note on a new Wealden iguanodont and other dinosaurs. Quarterly Journal of the Geological Society of London 44:46-61 [M. Carrano/M. Carrano/M. Carrano]
14172ETE R. Lydekker. 1893. On two dinosaurian teeth from Aylesbury. Quarterly Journal of the Geological Society of London 49:566-568 [M. Carrano/M. Carrano/M. Carrano]
25192ETE J. C. Mansel-Pleydell. 1888. Fossil reptiles of Dorset. Proceedings of the Dorset Natural History and Antiquarian Field Club 9:1-40 [M. Carrano/M. Carrano/M. Carrano]
14456ETE P. M. Upchurch and J. Martin. 2003. The anatomy and taxonomy of Cetiosaurus (Saurischia, Sauropoda) from the Middle Jurassic of England. Journal of Vertebrate Paleontology 23(1):208-231 [M. Carrano/M. Carrano/M. Carrano]
30971ETE A. S. Woodward and C. D. Sherborn. 1890. A Catalogue of British Fossil Vertebrata. Dulao & Company, London 1-396 [M. Carrano/M. Carrano/M. Carrano]
46832 M. T. Young and L. Steel. 2013. Evidence for the teleosaurid crocodylomorph genus Machimosaurus in the Kimmeridge Clay Formation (Late Jurassic) of England. Historical Biology [P. Mannion/P. Mannion]
47454 M. T. Young, L. Steel, and H. Middleton. 2013. Evidence of the metriorhynchid crocodylomorph genus Geosaurus in the Lower Kimmeridge Clay Formation (Late Jurassic) of England. Historical Biology [P. Mannion/J. Tennant]