Lynton Slates Site M (Devonian of the United Kingdom)

Where: England, United Kingdom (51.2° N, 3.8° W: paleocoordinates 29.1° S, 2.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lynton Slates Formation, Late/Upper Emsian (402.5 - 391.9 Ma)

• "probable late Emsian age"

• formation-level stratigraphic resolution

Environment/lithology: marine; gray, silty slate and gray sandstone

• interpreted as shallow-marine sediments, representing alternating periods of quieter water and more active deposition
• "The Lynton Slates comprise grey and dark grey silty slates with mudstones, siltstones and grey sandstones, usually fine to medium grained...In general the lower part...is sandy or silty, but with significant argilllites, and the upper part is predominantly argillaceous except at the top, where sandstones, possibly beach deposits, herald the transition into the overlying Hangman Grits..."

Primary reference: E. A. Edmonds, A. Whittaker, and B. J. Williams. 1985. Geology of the country around Ilfracombe and Barnstaple (Memoirs of the British Geological Survey for 1:50000 sheets 277 and 293, new series) 1-97 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 38395: authorized by Michael Foote, entered by Michael Foote on 21.04.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Ostreida - Pterineidae
? Leptodesma sp., "cf. Ptychopteria (cf. Actinopteria) cf. spinosa" = Actinopteria
? Leptodesma sp. Hall 1883 oyster
"cf. Ptychopteria (cf. Actinopteria) cf. spinosa" = Actinopteria oyster
Stenolaemata
 Fenestrida - Fenestellidae
Fenestella sp.
Fenestella sp. Lonsdale 1839
 Fenestrida - Polyporidae
Polypora sp.
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Strophomenata
 Strophomenida -
Strophomenida indet.
Rhynchonellata
 Orthida - Platyorthidae
Platyorthis longisulcata