Yaxley (Davidson) (Jurassic of the United Kingdom)

Where: United Kingdom (52.5° N, 0.3° W: paleocoordinates 42.2° N, 9.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cornbrash Formation (Great Oolite Group), Late/Upper Bathonian (167.7 - 164.7 Ma)

• "Lower Cornbrash"

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

• General BGS unit description: "A high degree of lithological variation is observed ... very pale coloured bioclastic micritic and nodular limestones are characteristic". (Page, 1989). "Pale cream sparsely ooidal and peloidal, locally very shelly or with thin shelly mudstone partings and pseudonodular appearance" (Bristow, 1999)

Size class: macrofossils

Collected by Davidson; reposited in the BMNH

• Repository most likely BMNH.

Primary reference: X. Shi and R. E. Grant. 1993. Jurassic rhynchonellids: internal structures and taxonomic revisions. Smithsonian Contributions to Paleobiology 73:1-190 [W. Kiessling/W. Kiessling]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 159880: authorized by Matthew Clapham, entered by Marko Manojlovic on 10.08.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Rhynchonellida - Rhynchonellidae
Rhynchonella yaxleyensis
Rhynchonella concinna n. ssp. yaxleyensis