Brook pterosaurs (PROXY) (Cretaceous to of the United Kingdom)

Where: England, United Kingdom (50.6° N, 1.5° W: paleocoordinates 40.8° N, 9.4° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Wessex Formation (Wealden Group), Barremian to Barremian (129.4 - 122.5 Ma)

• "This material cannot be satisfactorily assigned to a Wealden Group horizon" (Sweetman & Martill 2010). However, if the locality "Brook" refers to Brook Bay, rather than a wider vicinity, then the specimen is likely from the Wessex Formation because the Vectis Formation is not present at Brook Bay (Sweetman & Martill 2010).

• bed-level stratigraphic resolution

Environment/lithology: crevasse splay; conglomerate and mudstone

• Wessex Formation was "deposited in a meander-belt river system with a dominant flow direction from west to east"
• Bed CL3 is a "plant debris bed". "The lower part of most plant debris beds comprises a poorly sorted, matrix-supported conglomerate. The upper part of most consists of structureless mudstone, which usually grades up into colour-mottled but predominantly red and purple floodplain mudstones." (Sweetman & Insole 2010 PPP 292:409)

Size class: macrofossils

Collected by W. Fox; reposited in the BMNH

Primary reference: R. Lydekker. 1888. Catalogue of the Fossil Reptilia and Amphibia in the British Museum (Natural History). Part I. Containing the Orders Ornithosauria, Crocodilia, Dinosauria, Squamata, Rhynchocephalia, and Proterosauria. British Museum (Natural History), London 1-309 [M. Carrano/M. Carrano/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 101087: authorized by Richard Butler, entered by Richard Butler on 17.12.2010, edited by Bethany Allen

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Avetheropoda - Troodontidae
Ornithodesmus cluniculus n. sp.1 Seeley 1887 coelurosaur
BMNH R187 (holotype), poorly preserved sacrum of six vertebrae
 Pterosauria -
"Ornithodesmus latidens n. sp." = Istiodactylus latidens2
"Ornithodesmus latidens n. sp." = Istiodactylus latidens2 Seeley 1901 pterosaur
BMNH R176 (holotype), part of a poorly preserved skeleton. CAMMZ T706, partial skull (may be from same individual as the holotype)