Headington Quarry (Calcareous Grit) (Jurassic of the United Kingdom)

Also known as Heddington

Where: England, United Kingdom (51.8° N, 1.2° W: paleocoordinates 42.4° N, 8.7° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Beckley Sands Member (Kingston Formation), Middle Oxfordian (161.2 - 155.7 Ma)

• The specimen was historically considered to have been from the Lower Calcareous Grit (Watson 1911), this suggests that it was from what today is considered the Beckley Sands Member of the Kingston Formation. If the Lower Calcareous Grit determination proves to be wrong, then the only unit the specimen could pertain to is the Wheatley Limestone Member of the Stanford Formation (Figure 2). This would still put the specimen in the ‘Corallian Gap’, which means that the specimen is still from the middle Oxfordian (Cope 2006).

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by P. Manning in 1904

Collection methods: quarrying, mechanical,

• The specimen (MANCH L6459) was acquired by MANCH from Mr P. Manning on 21 December 1904.

•MANCH = The Manchester Museum, Manchester, United Kingdom

Primary reference: M. T. Young. 2013. Filling the ‘Corallian Gap’: re-description of a metriorhynchid crocodylomorph from the Oxfordian (Late Jurassic) of Headington, England. Historical Biology [R. Benson/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 138711: authorized by Roger Benson, entered by Roger Benson on 25.01.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Loricata - Metriorhynchidae
Metriorhynchidae indet. Fitzinger 1843 marine crocodile
Two teeth embedded in matrix: NHMUK PV OR 47044
cf. Torvoneustes sp. Andrade et al. 2010 marine crocodile
MANCH L6459, incomplete, but three-dimensionally preserved skull first reported by Watson (1911)
 Sauropterygia - Pliosauridae
Pliosauridae indet. Seeley 1874 plesiosaur
Tooth: NHMUK PV OR 47044