Overton Quarry #2 (Silurian of the United Kingdom)

Where: England, United Kingdom (52.5° N, 2.6° W: paleocoordinates 25.7° S, 12.3° W)

• small collection-level geographic resolution

When: Overton Formation, Ludfordian (425.6 - 423.0 Ma)

• Lower Whitcliffe Beds, 0 - 1.28 m section.

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, bioturbated, shelly/skeletal siltstone

• interbedded highly bioturbated calcareous siltstones in which most lamination destroyed by bioturbation. alternates with thin 'storm generated' siltstone and shell laminae. minor scour channels and slumping. occassional symmetric and asymmetric ripple laminae.

Primary reference: D. D. J. Antia. 1981. Faunas from the Upper Silurian (Upper Ludlovian) in the Ludlow-Much Wenlock District, England. Geological Journal 16:137-147 [J. Alroy/M. Sommers/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 8321: authorized by John Alroy, entered by Mike Sommers on 06.07.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• 6161 total specimens for ALL 6 collections.
Show authors, comments, and common names
unclassified
  -
Aegeria grayi, Microsphaeridiorhynchia nucula
Lingulata
 Lingulida - Discinidae
Orbiculoidea rugata
Strophomenata
 Strophomenida - Strophochonetidae
Protochonetes ludloviensis
Rhynchonellata
 Athyridida - Dayiidae
Dayia navicula
Dayia navicula Sowerby 1839
 Orthida - Draboviidae
Salopina lunata
Salopina lunata Sowerby 1839
Stenolaemata
 Cystoporata - Ceramoporidae
Ceramopora sp.
Ceramopora sp. Hall 1851
 Trepostomata - Heterotrypidae
Leioclema sp.
Leioclema sp. Ulrich 1882
Polychaeta
 Serpulimorpha -
Serpulites longissimus
 Eunicemorpha -
Arabellites sp.
Cephalopoda
 Orthocerida - Orthoceratidae
Orthoceras sp.
Orthoceras sp. Breynius 1832
Gastropoda
 Bellerophontida - Pterothecidae
"Bucanopsis expansus" = Phragmosphaera expansus
"Bucanopsis expansus" = Phragmosphaera expansus de Sowerby and Murchison 1839 snail
 Murchisoniina - Loxonematidae
"Loxonema obsoletum" = Loxonema obsoleta
"Loxonema obsoletum" = Loxonema obsoleta de Sowerby and Murchison 1839 snail
 Neritoidea - Naticopsidae
"Naticopsis cf. trevorpatriciorum" = Naticopsis trevorpaticiciorum
"Naticopsis cf. trevorpatriciorum" = Naticopsis trevorpaticiciorum Peel 1975 snail
Bivalvia
 Nuculanida - Cucullellidae
Nuculites antiquaas
 Ostreida - Pterineidae
Pteronitella retroflexa, Pterinea tenuistriata
 Cardiidia - Grammysiidae
Fuchsella amygdalina
Fuchsella amygdalina Sowerby 1827 clam
 Modiomorphida - Modiomorphidae
"Goniophora cymbaeformis" = Goniophora (Goniophora) cymbaeformis
"Goniophora cymbaeformis" = Goniophora (Goniophora) cymbaeformis Sowerby 1839 clam
Ostracoda
 Palaeocopida -
Hebellum cf. tetragonum