Targrove Quarry (Devonian of the United Kingdom)

Where: England, United Kingdom (52.0° N, 2.0° W: paleocoordinates 25.5° S, 8.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: micrornatus-newportensis spore biozone zone, Lower Ditton Group, Lochkovian (419.2 - 410.8 Ma)

• 60 m above the main Psammosteus limestone horizon.

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; green sandstone and sandstone

• sediments are typical of distal alluvial facies of the Old Red Sandstone (Edwards & Fanning, 1985)
• At certain horizons near the top of fining-upwards sequences, bedding planes of buff to green, micaceous , fine-grained sandstones are covered with fragmentary plant remains. Larger axes of Prototaxites/Nematasketum occur in the coarser, massive sandstones.

Size classes: macrofossils, mesofossils, microfossils

Preservation: adpression, permineralized, coalified, original carbon, original sporopollenin, replaced with pyrite

Collection methods: chemical, mechanical, peel or thin section,

• Lang, 1937 only described Cooksonia; D. Edwards recollected later, but does not indicate how many times. All names except C. hemisphaerica, Parka, and Nematothallus were from the later Edwards' collection(s).

Primary reference: W. H. Lang. 1937. On the plant-remains from the Downtonian of England and Wales. Philosophical Transactions of the Royal Society 227B:245-291 [P. Gensel/M. Kotyk/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 10679: authorized by Pat Gensel, entered by Michele Kotyk on 13.06.2001, edited by Phil Novack-Gottshall

Creative Commons license: CC BY (attribution)

Taxonomic list

• Taken from multiple sources.
unclassified
  -
Tarrantia salopensis n. gen. n. sp.4
Rhyniophytina indet.3
NUMEROUS rhyniophyte sporangia (about 50% of all found) are unnamed.
Nematasketum diversiforme2
identified as Prototaxites by Lang as well as Edwards & Fanning, 1985.
Traquaraspis symondsi4
fish found in nearby stream section
Xiphosura
 Xiphosurida -
Eurypterida indet.3 Burmeister 1843 eurypterid
eurypterid cuticle
Pteraspidomorpha
 Cyathaspidiformes - Pteraspididae
Pteraspis rostrata1 Agassiz 1835
var. trimpleyensis (fish)
Demospongea
 Chaetetida - Chaetetidae
Pachytheca cf. sphaerica Hooker 1861 demosponge
Parka decipiens
  -
Parka decipiens Fleming 1857
Zosterophyllum
  -
Hostinella
  -
Hostinella sp.3 Barrande 1882
Psilophytopsida
 Psilophytales -
Cooksonia cf. caledonica3
some may belong to Renalia sp.
Cooksonia hemisphaerica n. sp. Lang 1937
also reported in Edwards & Fanning 1985 and Fanning et al. 1992.
Cooksonia pertoni3 Lang 1937
see also Fanning et al 1988.
Nematothallus pseudovasculosa
  -