Ludlow-Much Wenlock District #13 (Silurian of the United Kingdom)

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

• outcrop-level geographic resolution

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

• group of beds-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 8307: authorized by John Alroy, entered by Mike Sommers on 05.07.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• 3210 total specimens.
unclassified
  -
Cephalopoda
 Orthocerida - Orthoceratidae
Leurocycloceras sp. Foerste 1928
Michelinoceras sp. Foerste 1932
 Orthoceratoidea - Paraphragmitidae
Gastropoda
 Murchisoniina - Palaeozygopleuridae
"Loxonema conicum" = Devonozyga conicum
"Loxonema conicum" = Devonozyga conicum Whidborne 1891 snail
Bivalvia
 Ostreida - Pterineidae
 Modiomorphida - Modiomorphidae
"Goniophora cymbaeformis" = Goniophora (Goniophora) cymbaeformis
"Goniophora cymbaeformis" = Goniophora (Goniophora) cymbaeformis Sowerby 1839 clam
 Cardiidia - Grammysiidae
Fuchsella amygdalina Sowerby 1827 clam
 Solemyida - Solemyidae
"Solenomya sp." = Solemya
"Solenomya sp." = Solemya Children 1823 Awning Clam
Strophomenata
 Strophomenida - Strophochonetidae
Rhynchonellata
 Orthida - Draboviidae
Salopina lunata Sowerby 1839
Craniata
 Craniopsida - Craniopsidae
Lingulata
 Lingulida - Lingulidae
Lingula sp. n. sp.
Lingula sp. n. sp. BruguiƩre 1797
 Lingulida - Discinidae
Stenolaemata
 Cystoporata - Ceramoporidae
Ceramopora sp. Hall 1851
 Trepostomata - Heterotrypidae
Leioclema sp. Ulrich 1882
Hyolitha
 Hyolithida - Hyolithidae
Polychaeta
 Serpulimorpha -
 Eunicemorpha -
Euchelicerata
 Eurypterida - Pterygotidae
Pterygotus sp. Agassiz 1839 eurypterid
Ostracoda
  -
 Podocopida - Bairdiocyprididae
 Podocopida -
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
ossicles
 Thelodontida - Coelolepidae
Thelodus parvidens Agassiz 1839