Also known as Rhamphorhynchus jessoni holotype site

Where: England, United Kingdom (52.3° N, 0.1° E: paleocoordinates 43.0° N, 9.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Weymouth Member (Oxford Clay Formation), Oxfordian (163.5 - 157.3 Ma)

• "St Ives is situated on the easternmost part of the Oxford Clay Formation outcrop and both Arkell (1933) and Edmonds and Dinham (1965) regard the St Ives clay pits as having been excavated in the Upper Oxford Clay (now called Weymouth Member; see Cox et al. 1992) and close to the Oxford Clay/West Walton Beds boundary. Thus ‘R’ jessoni is also from the Upper Jurassic, albeit the lowest part." (Martill & Etches 2011)

• bed-level stratigraphic resolution

Environment/lithology: marine; pyritic claystone

Size class: macrofossils

Collected by Jesson; reposited in the BMNH

Primary reference: R. Lydekker. 1890. On ornithosaurian remains from the Oxford Clay of Huntingdonshire. Quarterly Journal of the Geological Society of London 46:429-431 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92048: authorized by Richard Butler, entered by Richard Butler on 28.10.2009

Creative Commons license: CC BY (attribution)