Findrassie Quarries, 1 km east Findrassie House (Triassic to of the United Kingdom)

Where: Scotland, United Kingdom (57.7° N, 3.3° W: paleocoordinates 34.0° N, 0.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Lossiemouth Sandstone Formation, Carnian to Carnian (237.0 - 208.5 Ma)

• Age of the Lossiemouth Sandstone Formation is based upon vertebrate biostratigraphy, with comparisons made to the faunal assemblages from the lower part of the Maleri Formation (India), the upper part of the Santa Maria Formation (Brazil) and the Ischigualasto Formation (Argentina). This is suggestive of a late Carnian to early Norian age (Benton & Walker 2011).

• group of beds-level stratigraphic resolution

Environment/lithology: dune; lithified, medium-grained sandstone

• "Foreset analysis indicates a prevailing south-westerly wind forming barchan dunes. Dunes up to 20 m high migrated across the flood plain during arid intervals"
• "The Lossiemouth Sandstones are white, buff, yellow, or pinkish. Grain size is usually uniform with grains well-rounded. The rock is composed of quartz, feldspar, and rare brownish chert and quartzite. Cements are usually overgrowths of secondary quartz and feldspar, but calcite and fluorspar may also occur.

•The sandstones may be finely laminated, but more usually they show large-scale cross-beds on well-weathered surfaces. These features, as well as the absence of pebbles, the rarity of micas and heavy minerals, strongly suggest aeolian deposition".

Size class: macrofossils

Preservation: mold/impression

Primary reference: R. L. Paton. 1975. A Catalogue of Fossil Vertebrates in the Royal Scottish Museum, Edinburgh. Part Four / Amphibia & Reptilia. Royal Scottish Museum Information Series. Geology 5 1-38 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 89005: authorized by Richard Butler, entered by Richard Butler on 28.04.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pseudosuchia -
Dasygnathus longidens n. gen. n. sp.
Dasygnathus longidens n. gen. n. sp. Huxley 1877 archosaur
ELGNM 1R, maxilla with teeth, ELGNM 15R, right pterygoid. Both specimens probably belong to a single individual
 Pseudosuchia - Stagonolepididae
Stagonolepis robertsoni Agassiz 1844 archosaur
2 large individuals (NMS, ELGNM, AUGD specimens); 1 small individual (ELGNM specimen)