Second Abden Shale, Level 87 (Carboniferous of the United Kingdom)

Where: Scotland, United Kingdom (56.1° N, 3.2° W: paleocoordinates 1.8° S, 2.5° E)

• small collection-level geographic resolution

When: Second Abden Shale Formation, Brigantian (336.0 - 330.9 Ma)

• Brigantian age was shown by Brindley and Spinner 1989, Proc. Yorkshire Geol. Soc. 47:215-231

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, silty, sandy shale

• Sediments were deposited in a gap between periods of volcanic activity, the series represents a transgression from tidal-flat to subtidal environment.
• thin sections of the shale show it to consist predominantly of clay minerals with varying admixtures of sand and silt sized particles, normally quartz but with some chlorite and feldspar...interlaminations of fine sandy material in their more argillaceous basic substance.

Collection methods: bulk, chemical, mechanical, peel or thin section, sieve,

Primary reference: L. Ferguson. 1962. The paleoecology of a Lower Carboniferous marine transgression. Journal of Paleontology 36:1090-1107 [J. Alroy/M. Sommers/J. Ju]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 6420: authorized by John Alroy, entered by Mike Sommers on 01.03.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Lingulata
 Lingulida - Discinidae
Orbiculoidea nitida
Strophomenata
 Productida - Productellidae
Eomarginifera longispinus
Rhynchonellata
 Spiriferida - Ambocoeliidae
Crurithyris urei
Crurithyris urei Fleming 1828
 Orthida - Schizophoriidae
Schizophoria resupinata
Gastropoda
 Murchisoniina - Gosseletinidae
Glabrocingulum armstrongi
Glabrocingulum armstrongi Thomas 1940 snail
Bivalvia
 Nuculida - Nuculidae
Nuculopsis gibbosa
 Ostreida - Pterineidae
Actinopteria fluctuosa