Coten End Quarry (Triassic of the United Kingdom)

Also known as Coton End Quarry

Where: England, United Kingdom (52.3° N, 1.6° W: paleocoordinates 15.3° N, 11.3° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Bromsgrove Sandstone Formation (Sherwood Sandstone Group), Anisian (247.2 - 242.0 Ma)

• equate with the former 'Waterstones' and 'Building Stones'. Reptile specimens were found mostly in the 'Building Stones' and 'Dirt-bed' horizons while most amphibians were found in the 'Waterstones'

•Palynological data indicates an Anisian age (Benton et al. 1994)

• group of beds-level stratigraphic resolution

Environment/lithology: "channel"; poorly lithified, fine-grained, brown, red sandstone and marl

• "overbank pools subsequently broken up by flood waters"
• "10-11 m of channeled and cross-bedded water-laid buff and red sandstone in units 1-3 m thick, with occasional impersistent marl and clay bands 0.1-0.5 m thick."

Size classes: macrofossils, mesofossils

Preservation: trace

Reposited in the BMNH

Collection methods: quarrying, mechanical,

• quarried for building stone, abandoned by 1890

Primary reference: R. I. Murchison and H. E. Strickland. 1837. On the upper formations of the New Red System in Gloucestershire, Worcestershire, and Warwickshire; showing that the Red or Saliferous, including a peculiar band of sandstone, represent the "Keuper" or "Marnes irisées;" with some account of the underlying sandstone of Ombersley, Bromsgrove, and Warwick, priving that it is the "Bunter Sandstein" or "Grès bigarré" of foreign geologists. Transactions of the Geological Society of London, series 2 5(26):331-348 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 57944: authorized by Matthew Carrano, entered by Kaitlin Maguire on 11.01.2006, edited by Matthew Carrano and Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Dipnoi - Ceratodontidae
 Temnospondyli - Cyclotosauridae
Cyclotosaurus pachygnathus9, "Labyrinthodon leptognathus n. sp." = Cyclotosaurus leptognathus8
Cyclotosaurus pachygnathus9 tetrapod
WARMS Gz 13, 14, 26, 36
"Labyrinthodon leptognathus n. sp." = Cyclotosaurus leptognathus8 Owen 1841 tetrapod
WARMS Gz 6, 11, 35, 38
 Temnospondyli -
Mastodonsaurus sp.2 Jaeger 1828 tetrapod
Reptilia
 Eosuchia -
? Sauria indet. Gauthier 1984 crown diapsid
tooth, vertebra
 Eosuchia - Rhynchosauridae
Rhynchosauridae indet.5, "Rhynchosaurus brodiei n. sp." = Langeronyx brodiei1
Rhynchosauridae indet.5 Cope 1871 rhynchosaur
WARMS Gz17, dorsal vertebra; Gz19, left ischium; Gz34, interclavicle; Gz950/1, 2, right dentary and partial splenial; Gz955, small right maxilla; Gz959, posterior right dentary; Gz960, right maxilla; Gz4712, left dentary; Gz4715, partial snout; Gz6097, partial skull; BMNH R2623, partial dentary; R8494, right maxilla with portions of palatine, ectopterygoid & jugal; BGS/GSM 59745, 90493, left maxillae
"Rhynchosaurus brodiei n. sp." = Langeronyx brodiei1 Benton 1990 rhynchosaur
BMNH R8495, mandible and ventral parts of skull, fits to WARMS Gz6097 (holotype)
 Dinosauromorpha -
Dinosauriformes indet.6 Novas 1992 ornithodiran
 Pseudosuchia - Ctenosauriscidae
"Bromsgroveia walkeri n. gen. n. sp." = Bromsgroveia walkeri4, "Cladyodon lloydii n. gen. n. sp." = Bromsgroveia walkeri8
"Bromsgroveia walkeri n. gen. n. sp." = Bromsgroveia walkeri4 Galton 1985 archosaur
WARMS Gz 3a,b, right ilium (holotype). WARMS 1/2, sacral vertebrae; WARMS 121, dorsal centrum; WARMS 128, caudal centrum
"Cladyodon lloydii n. gen. n. sp." = Bromsgroveia walkeri8 Galton 1985 archosaur
 Phytosauria -
Palaeosaurus cylindrodon7 Riley and Stutchbury 1836 archosaur
 Eosuchia -
Rhombopholis scutulata3 Owen 1842 archosauromorph
WARMS Gz 21, proximal left femur; Gz4714, left ilium