Kingsthorpe, 'Upper Liassic': Falciferum - Bifrons, United Kingdom
collected by H. Gerald Thornton esq. >1922

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Plesiosauria - Rhomaleosauridae
Rhomaleosaurus thorntoni n. sp. Andrews 1922
1 specimen
synonym of Rhomaleosaurus zetlandicus
BMNH R4853 (holotype partial skeleton)
Thaumatosaurus cramptoni (Carte and Baily 1863)
Lydekker 1889 1 specimen
recombined as Rhomaleosaurus cramptoni
BMNH 47154, juvenile fibula from the Sharp collection, purchased 1876
see common names

Geography
Country:United Kingdom State/province:England County:Northamptonshire
Coordinates: 52.3° North, 0.9° West (view map)
Paleocoordinates:40.2° North, 9.6° East
Basis of coordinate:estimated from map
Geographic resolution:hand sample
Time
Period:Jurassic Epoch:Early/Lower Jurassic
Stage:Toarcian 10 m.y. bin:Jurassic 3
Key time interval:Falciferum - Bifrons Zone: Harpoceras falciferum to Hildoceras bifrons
Age range of interval:184.20000 - 174.70000 m.y. ago
Stratigraphy
Formation:Whitby Mudstone
Stratigraphy comments: 'Upper Liassic' strata in this region are Toarcian
Lithology and environment
Primary lithology: not reported
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:selective quarrying,surface (in situ)
Reason for describing collection:taxonomic analysis
Museum repositories:BMNH
Collectors:H. Gerald Thornton esq. Collection dates:>1922
Metadata
Database number:118939
Authorizer:R. Benson Enterer:R. Benson
Modifier:R. Benson Research group:vertebrate
Created:2011-10-18 19:43:32 Last modified:2013-09-16 04:58:59
Access level:the public Released:2011-10-18 19:43:32
Creative Commons license:CC BY
Reference information

Primary reference:

38191. C. W. Andrews. 1922. Note on the skeleton of a large plesiosaur (Rhomaleosaurus thorntoni, sp. n) from the Upper Lias of Northamptonshire. Annals and Magazine of Natural History 10:407-415 [R. Benson/R. Benson]

Secondary references:

38190 A. R. I. Cruickshank. 1996. The cranial anatomy of Rhomaleosaurus thorntoni Andrews (Reptilia, Plesiosauria). Bulletin of the Natural History Museum of London (Geology) 52(2):109-114 [R. Benson/R. Benson]
33960 R. Lydekker. 1889. Catalogue of the Fossil Reptilia and Amphibia, Part II. Containing the orders Ichthyopterygia and Sauropterygia [M. Carrano/H. Street/R. Benson]