PBDB Collection

Second Abden Shale, Level 96 (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 6431: 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

unclassified
-	Rastidiscus sp., Stacheiodes sp. Rastidiscus sp. Stacheiodes sp.
Ostracoda
Platycopida - Paraparchitidae	Paraparchites okeni Paraparchites okeni ostracod
Podocopida - Bairdiidae	Bairdia hisingeri Bairdia hisingeri ostracod
Gastropoda
Bellerophontida - Bellerophontidae	"Bucaniopsis decussatus" = Retispira decussatus "Bucaniopsis decussatus" = Retispira decussatus Fleming 1828 snail
Murchisoniina - Soleniscidae	"Soleniscus (Soleniscus) typicus" = Soleniscus typicus, "Soleniscus (Macrochilina) sp." = Strobeus, "Soleniscus (Macrochilina) brevis" = Strobeus brevis "Soleniscus (Soleniscus) typicus" = Soleniscus typicus Meek and Worthen 1860 snail sgn. (Soleniscus) "Soleniscus (Macrochilina) sp." = Strobeus de Koninck 1881 snail sgn. (Macrochilina), nuclei "Soleniscus (Macrochilina) brevis" = Strobeus brevis White 1881 snail sgn. (Macrochilina)
Rhynchonellata
Spiriferida - Ambocoeliidae	Crurithyris urei Crurithyris urei Fleming 1828
Orthida - Schizophoriidae	Schizophoria resupinata Schizophoria resupinata Martin 1809
Strophomenata
Productida - Productellidae	Eomarginifera longispinus Eomarginifera longispinus Sowerby 1814
Lingulata
Lingulida - Lingulidae	Lingula squamiformis Lingula squamiformis Phillips 1836
Stenolaemata
Cryptostomata - Arthrostylidae	Heminematopora sp. Heminematopora sp. Bassler 1952
Polychaeta
Sabellida - Serpulidae	Spirorbis sp. Spirorbis sp. Daudin 1800
unclassified
-	Vertebrata indet. Vertebrata indet. Lamarck 1801 "fish" remains
Chondrichthyes
Euselachii -	Holmesella sp. Holmesella sp. elasmobranch
Holothuroidea
-	Holothuroidea indet. Holothuroidea indet. de Blainville 1834 sea cucumber sclerites
Crinoidea
-	Crinoidea indet. Crinoidea indet. Miller 1821 Sea lily

Coleoloida -	Ortonia carbonaria Ortonia carbonaria
Rhodophyceae
- Aoujgaliaceae	Stacheia sp. Stacheia sp. Brady 1876
Foraminifera
Ammodiscoidea - Ammodiscidae	Glomospira sp. Glomospira sp. Rzehak 1895
Endothyroidea - Endothyridae	Plectogyra baileyi, Endothyra sp. Plectogyra baileyi Endothyra sp. sp. globulus/radiata
Endothyroidea - Loeblichiidae	Loeblichia ammonoides Loeblichia ammonoides