Reigate (Middle Chalk) (Cretaceous of the United Kingdom)

Where: England, United Kingdom (51.2° N, 0.2° W: paleocoordinates 40.9° N, 1.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Inoceramus labiatus inoceramid zone, Middle Chalk Formation (Chalk Group), Turonian (93.9 - 89.8 Ma)

• Formation name remains in informal use but is regarded as obsolete onshore

• group of beds-level stratigraphic resolution

Environment/lithology: lithified chalk

• White pure chalk with some flint seams and very shelly beds. Comprises from base: hard indurated chalk with flaser marls (Melbourn Rock) to exceptionally shelly chalk with flints into chalk with well defined marl seams.

Size class: macrofossils

Reposited in the BGS

Primary reference: N. E. Pettitt. 1954. A monograph of the Rhynchonellidae of the British Chalk. Part 2. Monograph of the Palaeontographical Society 107:27-52 [M. Clapham/M. Manojlovic/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 159633: authorized by Matthew Clapham, entered by Marko Manojlovic on 06.08.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Rhynchonellida - Basiliolidae
Orbirhynchia cuvieri d'Orbigny 1847
Orbirhynchia orbignyi n. sp. Pettitt 1954