ammonites
Durdham Down, Quarry Steps (Triassic of the United Kingdom)

Also known as Redland, Derdham

Where: England, United Kingdom (51.5° N, 2.6° W: paleocoordinates 31.4° N, 1.0° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Magnesian Conglomerate Formation, Late/Upper Triassic (235.0 - 201.6 Ma)

• Late Triassic deposits infill Early Carboniferous (Dinantian) marine limestones

• bed-level stratigraphic resolution

Environment/lithology: fissure fill; limestone and dolomitic, yellow, sandy breccia

• "brecciated beds" within marine limestone are described as "conglomerate" and as "angular fragments of Carboniferous limestone in a matrix of yellow marl." Considered a "dolomitized cave breccia or fissure fill"

Size classes: macrofossils, mesofossils

Collected by J. S. Miller, Benton

Collection methods: bulk, salvage, quarrying, mechanical,

• Agrosaurus specimen was originally believed to have been collected from the NE coast of Australia by the H.M.S. Fly in 1844, but this was later shown to be in error, and these materials represent additional Thecodontosaurus specimens from Durdham Down.

Primary reference: W. Buckland. 1824. Reliquiĉ Diluvianĉ; or, Observations on the Organic Remains Contained in Caves, Fissures, and Diluvial Gravel, and on Other Geological Phenomena, Attesting the Action of an Universal Deluge. Second Edition. John Murray, London 1-303 [M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 51970: authorized by Matt Carrano, entered by Matt Carrano on 07.07.2005

Creative Commons license: CC BY (attribution)