Kingsthorpe, 'Upper Liassic' (Jurassic to of the United Kingdom)

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

 Sauropterygia - Rhomaleosauridae
"Thaumatosaurus cramptoni" = Rhomaleosaurus cramptoni, "Rhomaleosaurus thorntoni n. sp." = Rhomaleosaurus zetlandicus
"Thaumatosaurus cramptoni" = Rhomaleosaurus cramptoni Carte and Baily 1863 plesiosaur
BMNH 47154, juvenile fibula from the Sharp collection, purchased 1876
"Rhomaleosaurus thorntoni n. sp." = Rhomaleosaurus zetlandicus Phillips 1854 plesiosaur
BMNH R4853 (holotype partial skeleton)