Where: England, United Kingdom (52.3° N, 0.9° W: paleocoordinates 40.2° N, 9.6° E)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Harpoceras falciferum to Hildoceras bifrons zone, Whitby Mudstone Formation, Falciferum to Falciferum (183.0 - 175.6 Ma)
• 'Upper Liassic' strata in this region are Toarcian
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Collected by H. Gerald Thornton esq. in >1922; reposited in the BMNH
Collection methods: quarrying, surface (in situ)
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 118939: authorized by Roger Benson, entered by Roger Benson on 18.10.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
| Reptilia | |
"Rhomaleosaurus thorntoni n. sp." = Rhomaleosaurus zetlandicus, "Thaumatosaurus cramptoni" = Rhomaleosaurus cramptoni
"Rhomaleosaurus thorntoni n. sp." = Rhomaleosaurus zetlandicus Phillips 1854 plesiosaur BMNH R4853 (holotype partial skeleton)
"Thaumatosaurus cramptoni" = Rhomaleosaurus cramptoni Carte and Baily 1863 plesiosaur BMNH 47154, juvenile fibula from the Sharp collection, purchased 1876
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