Pant-y-ffynnon Quarry, Bonvilston (Triassic of the United Kingdom)

Also known as Pant-y-ffynon, Cowbridge islands, ST 046 743

Where: Wales, United Kingdom (51.5° N, 3.4° W: paleocoordinates 20.3° N, 6.0° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Carnian (237.0 - 228.0 Ma)

• Whiteside & Marshall (2008) argue that Pant-y-ffynnon and other Triassic fissure fills are Rhaetian in age

• bed-level stratigraphic resolution

Environment/lithology: fissure fill; limestone and yellow marl

• stratified, yellow clay/marl cave/fissure-filling in a limestone

Size class: macrofossils

Collected by D. A. Kermack & P. L. Robinson in 1952; reposited in the BMNH

Collection methods: bulk, surface (float), mechanical,

Primary reference: K. A. Kermack. 1953. An ancestral crocodile from south Wales. Proceedings of the Linnean Society of London 166(1–2):1-2 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27012: authorized by Matthew Carrano, entered by Matthew Carrano on 12.11.2002, edited by Robin Whatley, Terri Cleary, Graeme Lloyd, Emma Dunne and Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Pseudosuchia - Ornithosuchidae
Aenigmaspina pantyffynnonensis n. gen. n. sp.5 Patrick et al. 2019 archosaur
NHMUK P9/1a, NHMUK P9/2a, NHMUK P9/3a, NHMUK P50/4
 Loricata -
Terrestrisuchus gracilis n. gen. n. sp.
Terrestrisuchus gracilis n. gen. n. sp. Crush 1984 crocodilian
"a very primitive crocodile or crocodile ancestor"
 Saurischia -
"Thecodontosaurus caducus n. sp." = Pantydraco caducus7
"Thecodontosaurus caducus n. sp." = Pantydraco caducus7 Yates 2003 sauropodomorph
BMNH P24 (holotype). P6/1, 19/6, 19/7, 22/1, 25/4, 25/5, 27/1, 27/3, 35/1, 38/2, 38/8, 39/1, 39/2, 39/3, 41/1, 50/4, 52, 57/1, 59/4, 59/5, 64/1, 65/21, 65/25, 65/29, 65/36, 65/42, 66/1, 68/1, 77/1, 81/1, 82/2, 106/1, 125/1, 126/1, 141/1, unnumbered
 Theropoda -
Pendraig milnerae n. gen. n. sp.6 Spiekman et al. 2021 coelophysoid
Holotype: NHMUK PV R 37591 - An articulated vertebral series and pelvic girdle comprising the two posteriormost dorsal vertebrae missing most of the neural spines, the three anteriormost sacral vertebrae and a small fragment of the centrum of the fourth sacral, a complete left ilium, a largely complete left pubis missing the distal end, a left ischium missing most of the distal portion, a largely complete right pubis missing the distal end, and a right ischium missing most of the dorsal and distal portions (field number P77/1). Additionally, a left femur was found disarticulated from the left hemipelvis in the same block (field number P76/1). It has been completely freed from the matrix and is confidently referred to the same individual as the vertebral column and pelvis. Referred material. NHMUK PV R 37596 (field number P83/1): A complete middle to posterior dorsal vertebra completely freed from matrix (figure 4). NHMUK PV R 37597 (field number P65/66b): the proximal end of a left ischium preserving the articular facet with the left ilium (figure 5). A counterslab to this specimen, listed as field number P65/66a and comprising the base of the distal portion and part of the proximal expansion of the ischium, was described and figured in the unpublished PhD thesis of Warrener.
 Eosuchia - Kuehneosauridae
Kuehneosaurus sp.2 Robinson 1962 crown diapsid
 Eosuchia -
Lepidosauria indet.4 Haeckel 1866 lepidosaur
 Lepidosauria -
Rhynchocephalia "taxon A"3 Günther 1867 rhynchocephalian
NHMUK R37035, posterior fragment of dentary; NHMUK R37022, right dentary
 Eosuchia -
Diphydontosaurus sp.3 Whiteside 1986 lepidosaur
NHMUK R37024, left dentary; NHMUK R37031, parietal; two additional ?Diphydontosaurus specimens: NHMUK R37025, frontal; NHMUK R37018, parietal
 Eosuchia - Clevosauridae
Clevosaurus sp.2 Swinton 1939 lepidosaur
Clevosaurus cambrica n. sp.3 Keeble et al. 2018 lepidosaur
NHMUK R37016 (holotype), left maxilla; NHMUK R37015, left dentary; NHMUK R37042, right maxilla; NHMUK R37014, partial skull and right lower jaw, vertebrae, and left scapulocoracoid and forelimb; NHMUK R37013, skull and associated bones (in rock specimen NHMUK R36939); NHMUK R37014, dentary and maxilla (found in rock specimen NHMUK R36940)