Pterinea tenuistriata Assoc., Lower Bringewood equivalents, east-central Wales (Silurian of the United Kingdom)

Where: England, United Kingdom (52.0° N, 3.0° W: paleocoordinates 27.9° S, 13.0° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Gorstian (427.4 - 425.6 Ma)

• Lower Bringewood equivalents (e.g. Pterinea Beds).

• formation-level stratigraphic resolution

Environment/lithology: marine; siltstone

• "The low oxygen level would correlate with the rare benthos. Its facial position suggests a BA 4 assignment, which is also similar to many of the restrictive bivalve associations in the Barrandian."
• "...parallel laminated flags with alternating dark and light layers, possibly of seasonal origin and characteristic today of seas with stagnant to dysaerobic bottom waters." Lawson (ref. 6658) states: "laminated silts".

Size class: macrofossils

Collection methods: Percent abundances are given, based on 61 samples.

Primary reference: J. D. Lawson. 1999. Atkins' Lower Bringewood associations of Wales and the Welsh Borderland. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 380-387 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 23159: authorized by Michael Foote, entered by Michael Foote on 10.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Graptolithina
  -
Graptolithina indet.
Graptolithina indet. graptolite
holoplanktic graptolites
Rhynchonellata
 Rhynchonellida - Trigonirhynchiidae
Microsphaeridiorhynchus nucula
Microsphaeridiorhynchus nucula Sowerby 1839
may have been transported into basin attached to benthic algae
 Rhynchonellida - Hebetoechiidae
Sphaerirhynchia wilsoni
Sphaerirhynchia wilsoni de Sowerby 1816
may have been transported into basin attached to benthic algae
Strophomenata
 Strophomenida - Aegiromenidae
"Aegiria grayi" = Jonesea grayi
"Aegiria grayi" = Jonesea grayi Davidson 1849
may have been transported into basin attached to benthic algae [entered as Aegiria gray]
Bivalvia
 Cyrtodontida - Cardiolidae
Cardiola cornucopiae
 Ostreida - Pterineidae
Pterinea tenuistriata
Cephalopoda
 Nautiloidea -
Nautiloidea indet.
Nautiloidea indet. Agassiz 1847 nautiloid
nektic orthocones