Northfleet (Upper Chalk, Sowerby collection) (Cretaceous to of the United Kingdom)

Where: England, United Kingdom (51.4° N, 0.3° E: paleocoordinates 41.5° N, 2.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Micraster coranguinum other zone, Upper Chalk Formation (Chalk Group), Late/Upper Coniacian to Late/Upper Coniacian (89.3 - 83.5 Ma)

• Formation name remains in informal use but is obsolete onshore according to the BGS

• group of beds-level stratigraphic resolution

Environment/lithology: lithified chalk

• BGS unit description: White chalks (microporous coccolithic limestone) with beds of flint, nodular chalks, hardgrounds and marl seams

Size class: macrofossils

Collected by J. Sowerby; reposited in the BMNH

Primary reference: N. E. Pettitt. 1950. Rhynchonellidae of the British Chalk. Rhynchonellidae of the British Chalk, Part I 103(450):1-26 [M. Clapham/M. Manojlovic/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 159296: authorized by Matthew Clapham, entered by Marko Manojlovic on 30.07.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Rhynchonellida - Tetrarhynchiidae
Cretirhynchia plicatilis n. sp.
Cretirhynchia plicatilis n. sp. Sowerby 1816