Guildford Bypass (Cretaceous of the United Kingdom)

Where: England, United Kingdom (51.2° N, 0.6° W: paleocoordinates 41.1° N, 1.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Holaster planus other zone, Upper Chalk Formation (Chalk Group), Late/Upper Turonian (93.5 - 89.3 Ma)

• Upper Chalk remains in informal use, but is obsolete onshore according to the BGS

• group of beds-level stratigraphic resolution

Environment/lithology: lithified chalk

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

Size class: macrofossils

Reposited in the BMNH

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 159656: authorized by Matthew Clapham, entered by Marko Manojlovic on 06.08.2014, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

 Rhynchonellida - Basiliolidae
Orbirhynchia dispansa Pettitt 1954
Orbirhynchia reedensis Etheridge 1881
 Ammonitida - Nostoceratidae
"Didymoceras saxonicum" = Nostoceras (Eubostrychoceras) saxonicum
"Didymoceras saxonicum" = Nostoceras (Eubostrychoceras) saxonicum Schluter 1875 ammonite
 Ammonitida - Scaphitidae
"Otoscaphites bladenensis" = Yezoites bladenensis
"Otoscaphites bladenensis" = Yezoites bladenensis Schl├╝ter 1871 ammonite
Scaphites auritus in Wright & Wright 1945
 Ammonitida - Pachydiscidae
Lewesiceras mantelli Wright and Wright 1951 ammonite
 Ammonitida - Collignoniceratidae
Subprionocyclus hitchinensis Billinghurst 1927 ammonite