Boreraig (Jurassic of the United Kingdom)

Where: Scotland, United Kingdom (57.0° N, 5.5° W: paleocoordinates 43.0° N, 0.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: C. turneri ammonoid zone, Hallaig Sandstone Member (Ardnish Formation), Early/Lower Sinemurian (196.5 - 189.6 Ma)

Environment/lithology: estuary or bay; shale

• Here the Ardnish Formation predominantly comprises micaceous shales and siltstones with clean, medium- to fine-grained sandstones exhibiting bipolar tabular and trough cross-beds (e.g. the Hallaig Sandstone Member of Hesselbo et al. 1998). These cross-bedded units, which contain abundant marine fossils at the bases of coarsening-up cycles, are interpreted as representing deposition in a shallow-marine/ estuarine environment with a tidal influence (Hesselbo & Coe 2000).

Size class: macrofossils

Collected in 1999

• SM 1976.1999.8 was found loose on the shore at Boreraig (Suisnish, south Skye) by one of the authors (C.C.J.M.) in 1997 (MacFadyen 1997) (Fig. 1). It was later collected by another of the authors (D.A.R.) and Martin Wildgoose in 1999. NMS G. 2014.21.1 was found during a 2013

•field trip by one of the authors (T.J.C.).

Primary reference: S. L. Brusatte, M. T. Young, T. J. Challands, N. D. L. Clark, V. Fischer, N. C. Fraser, J. J. Liston, C. C. J. MacFayden, D. A. Ross, S. Walsh, and M. Wilkinson. 2015. Ichthyosaurs from the Jurassic of Skye, Scotland. Scottish Journal of Geology [P. Mannion/J. Tennant]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 165070: authorized by Philip Mannion, entered by Jonathan Tennant on 12.01.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ichthyosauria - Ichthyosauridae
cf. Ichthyosaurus communis Conybeare 1821 ichthyosaur
SM 1976.1999.8: block containing the impression of the ventral surface of an ichthyosaur lower jaw and 21 separated teeth, some of which preserve portions of the enamel. NMS G. 2014.21.1: single isolated tooth root