FIDS: Scaly & polygonal structures

3D Model

Scaly & polygonal structures, superimposed on low-relief mud ripples, on the base of a sandstone bed. Such surfaces have been termed ‘dinosaur leather’

Three-dimensional, low relief mud ripples, covered with dominantly polygonal structures. The whole surface is covered with these structures, leading to a past desrciption of ‘dinosaur leather’ for these FIDS.

Carboniferous Crackington Formation, Hartland Quay, North Devon UK. (50.99756 -4.53018)

The bedding plane is c. 5.76m long x 2.45m wide.

Model produced using Scaniverse (https://scaniverse.com/) on an iPhone 13 Pro and processed in MeshLab (https://www.meshlab.net/).

See: Peakall, J. et al. (2024) Flow-induced Interfacial Deformation Structures (FIDS): Implications for the interpretation of palaeocurrents, flow dynamics and substrate rheology, Sedimentology, 71, doi: 10.1111/sed.13219.