Where: England, United Kingdom (50.6° N, 2.1° W: paleocoordinates 41.3° N, 7.9° E)
• coordinate estimated from map
• local area-level geographic resolution
When: Aulacostephanus autissiodorensis and Pectinatites elegans ammonoid zone, Kimmeridge Clay Formation, Late/Upper Kimmeridgian (155.7 - 150.8 Ma)
• Outcrops of the Kimmeridge Clay formation are only Kimmeridgian age in Kimmeridge Bay itself.
•"According to Morgans-Bell et al. (2001) and Gallois (2000), this area exposes the Aulacostephanus autissidorensis and Pectinatites elegans ammonite zones of the formation" (Knutsen 2012, p. 269)
• formation-level stratigraphic resolution
Environment/lithology: marine; mudstone
Size class: macrofossils
Collected by J. C. Mansel, Esq. in <1870; reposited in the BMNH
Collection methods: surface (float), surface (in situ), mechanical
• DORCM, Dorset County Museum, Dorchester, Dorset, England, United Kingdom
Primary reference: J. W. Hulke. 1870. Note on some plesiosaurian remains obtained by JC Mansel, Esq, FGS, in Kimmeridge Bay, Dorset. Quarterly Journal of the Geological Society 26:611-622 [R. Benson/R. Benson]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 119504: authorized by Roger Benson, entered by Roger Benson on 29.10.2011, edited by Jonathan Tennant and Matthew Carrano
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Ichthyosaurus enthekiodon n. sp.4
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"Teleosaurus megarhinus n. sp." = Bathysuchus megarhinus2
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Plesiosuchus manselii5 Hulke 1870 marine crocodile NHMUK PV OR40103– incomplete skull (snout and occiput – lacking occipital condyle – with fragments of the supratemporal arches) and isolated right articular. NHMUK PV OR40103a – the right mandibular ramus, some isolated teeth, a humerus, and numerous ribs and vertebrae that are partially or completely imbedded in matrix. Two further specimens may belong to the P. manselii holotype: NHMUK PV OR40104– an occipital condyle, and NHMUK PV OR40105– carpal and tarsal bones. Both specimens were donated to the University of Toronto through Professor Ramsay Wright in 1900. From examining the relevant register in the NHMUK Earth Sciences Department, it is possible both specimens were part of NHMUK PV OR40103 (as they are all part of the same acquisition, NHMUK PV OR40103 lacks the occipital condyle and NHMUK PV OR40103a does not include carpal or tarsal bones). Unfortunately, as neither specimen could be located at the Royal Ontario Museum (K. Seymour, 2011 pers. com.) it is impossible to assess whether they too belong to the holotype
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"Plesiosaurus manselii n. sp." = Colymbosaurus trochanterius
"Plesiosaurus manselii n. sp." = Colymbosaurus trochanterius Owen 1840 plesiosaur BMNH 40106 (holotype postcranial skeleton), 40107 (left femur)
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Pliosaurus macromerus3 Phillips 1871 plesiosaur DORCM G.123, hindlimb measuring 6 feet 7 inches long
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