Aust Cliff bone bed (Ord coll, Bristol) (Triassic of the United Kingdom)

Where: England, United Kingdom (51.6° N, 2.6° W: paleocoordinates 36.1° N, 0.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Westbury Formation (Penarth Group), Rhaetian (208.5 - 201.3 Ma)

• Bonebed is at the base of the Westbury Formation

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, lenticular, sandy conglomerate

• marine coastal conditions, possibly a result of a storm or the Rhaetian transgression
• "lenses of grit or intra-formational conglomerate (or breccia) of sedimentary rocks with a calcite-cemented sandy matrix"

Size classes: macrofossils, mesofossils

Collected by W.T. Ord

Primary reference: J. W. Davis. 1881. Notes on the fish-remains of the bone-bed at Aust, near Bristol; with the description of some new genera and species. Quarterly Journal of the Geological Society of London 37:414-426 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122362: authorized by Matthew Clapham, entered by Matthew Clapham on 22.12.2011, edited by Kaitlin Maguire, Matthew Carrano and Roger Benson

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Dipnoi - Ceratodontidae
Ceratodus sp.3 Agassiz 1838 lungfish
Reptilia
 Ichthyosauria - Ichthyosauridae
Ichthyosaurus sp.2 Koenig 1818 ichthyosaur
 Diapsida -
Rysosteus sp. n. gen.6
Rysosteus sp. n. gen.6 Owen 1842 diapsid
anterior dorsal vertebra, Johnson coll. no. 177
 Archosauria -
Archosauria indet.4 archosaur
BMNH 23812, pedal elements
 Plesiosauria -
Plesiosaurus trigonus5 Cuvier 1824 plesiosaur
vertebra
Plesiosaurus costatus n. sp.5 Owen 1840 plesiosaur
BRSMG Cb 2457 (destroyed holotype)
Actinopteri
 Semionotiformes - Semionotidae
Sargodon tomicus3 Plieninger 1847
Chondrichthyes
  -
"Ctenoptychius pectinatus n. sp." = Ageleodus pectinatus
"Ctenoptychius pectinatus n. sp." = Ageleodus pectinatus Agassiz 1838 chimaera
 Synechodontiformes - Palaeospinacidae
Nemacanthus filifer n. sp.1 Agassiz 1836 elasmobranch
Nemacanthus minor n. sp. Davis 1881 elasmobranch
 Hybodontiformes - Hybodontidae
Hybodus austiensis n. sp. Davis 1881 elasmobranch
Hybodus punctatus n. sp. Davis 1881 elasmobranch
Sphenonchus (Hybodus) obtusus n. sp. Davis 1881 elasmobranch
  -
Ctenoptychius ordii n. sp. Davis 1881 cartilaginous fish