Second Abden Shale, Level 104 (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 6442: authorized by John Alroy, entered by Mike Sommers on 02.03.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Rastidiscus sp., Stacheiodes sp.
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Chondrichthyes
 Euselachii -
Holmesella sp.
Holmesella sp. elasmobranch
Strophomenata
 Productida - Productidae
Productidae indet.
 Productida - Productellidae
Eomarginifera longispinus
 Productida - Echinoconchidae
Pustula pustulosa, Echinoconchus punctatus
Pustula pustulosa Phillips 1836
Stenolaemata
 Rhabdomesida - Rhomboporidae
Rhombopora cf. muralis
 Cryptostomata - Acanthocladiidae
Acanthocladia sp.
Bivalvia
 Pectinida - Entoliidae
Pernopecten sowerbyi
Pernopecten sowerbyi M'Coy 1844 scallop
Ostracoda
 Podocopida - Bairdiidae
Bairdia hisingeri
 Platycopida - Paraparchitidae
Paraparchites okeni
Rhodophyceae
  - Aoujgaliaceae
Fourstonella fusiformis, Stacheia sp.
Stacheia sp. Brady 1876
Foraminifera
 Ammodiscoidea - Ammodiscidae
Glomospira sp.
Glomospira sp. Rzehak 1895
 Endothyroidea - Endothyridae
Plectogyra baileyi, Endothyra sp.
Endothyra sp.
sp. globulus/radiata
 Endothyroidea - Loeblichiidae
Loeblichia ammonoides