Ness of Sound (Devonian of the United Kingdom)

Where: Scotland, United Kingdom (60.5° N, 1.2° W: paleocoordinates 16.6° S, 2.2° W)

• coordinate estimated from map

When: Givetian (387.7 - 382.7 Ma)

Environment/lithology: fluvial-lacustrine; lithified sandstone

• Three main lacustrine facies are recorded above the basement breccia that provide evidence of the Devonian Shetland environment (Mykura, 1976; Allen, 1981). These include: (1) horizontal and cross-stratified sandstones with interbedded siltstones and mudstones. The shift between fine and coarse bedding suggests a lake marginal environment with wave action producing the rippled laminated sandstones; (2) rippled siltstones characterized by cross and horizontal lamination. The presence of plant remains and shrinkage cracks suggests this was a transitional lake environment with intermediate-to-continuous wave agitation; (3) laminated and unlaminated siltstones and mudstones with fish remains and no evidence of current or wave action. This is the horizon where Stegotrachelus is preserved.

Size class: macrofossils

Preservation: mold/impression

Collected by NMS; reposited in the BMNH

Primary reference: B. A. Swartz. 2009. Devonian actinopterygian phylogeny and evolution based on a redescription of Stegotrachelus finlayi. Zoological Journal of the Linnean Society 156(4):750-784 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 197265: authorized by Richard Butler, entered by Struan Henderson on 29.10.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Stegotrachelus finlayi Woodward and White 1926