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 Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
  -
Ctenoptychius ordii n. sp. Davis 1881 cartilaginous fish
 Hybodontiformes - Hybodontidae
Hybodus punctatus n. sp. Davis 1881 elasmobranch
Cladodus curtus n. sp. Davis 1881 elasmobranch
Hybodus austiensis n. sp. Davis 1881 elasmobranch
Sphenonchus (Hybodus) obtusus n. sp. Davis 1881 elasmobranch
 Synechodontiformes - Paleospinacidae
Nemacanthus monilifer Agassiz 1837 elasmobranch
Nemacanthus monilifer n. sp.1 Agassiz 1837 elasmobranch
Nemacanthus filifer n. sp.1 Agassiz 1837 elasmobranch
Nemacanthus minor n. sp. Davis 1881 elasmobranch
  -
"Ctenoptychius pectinatus n. sp." = Ageleodus pectinatus
"Ctenoptychius pectinatus n. sp." = Ageleodus pectinatus Agassiz 1838 chimaera
Actinopteri
 Semionotiformes - Semionotidae
Sargodon tomicus3 Plieninger 1847
Reptilia
 Choristodera -
Pachystropheus rhaeticus2 von Huene 1935 choristodere
 Ichthyosauria - Ichthyosauridae
Ichthyosaurus sp.2 Koenig 1818 ichthyosaur