Swindon Brick and Tile Company brick pit (Jurassic of the United Kingdom)

Also known as Omosaurus/Dacentrurus type

Where: England, United Kingdom (51.6° N, 1.8° W: paleocoordinates 42.2° N, 8.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Lower Member (Kimmeridge Clay Formation), Late/Upper Kimmeridgian (155.7 - 150.8 Ma)

• exact horizon unknown, but believed to be Aulacostephanus pseduomutabilis and/or Rasenia mutabilis Zones (now = Aulacostephanus eudoxus and Aulacostephanus mutabilis Zones)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary claystone

• bones in septarian nodules in the clay

Size class: macrofossils

Preservation: concretion

Collected by J. Shopland, Davies in 1874–1875, 1894; reposited in the BMNH

Collection methods: quarrying, surface (in situ), mechanical,

Primary reference: R. Owen. 1875. Monographs on the fossil Reptilia of the Mesozoic formations. Part II. (Genera Bothriospondylus, Cetiosaurus, Omosaurus). 29:15-93 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 47421: authorized by Matthew Carrano, entered by Matthew Carrano on 24.02.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Hybodontiformes - Acrodontidae
Asteracanthus sp.1 Agassiz 1837 elasmobranch
spines
Reptilia
 Saurischia -
Bothriospondylus suffossus n. gen. n. sp. Owen 1875 sauropod
BMNH 44592-5, 44589-91
 Ornithischia - Stegosauridae
"Omosaurus armatus n. gen. n. sp." = Dacentrurus armatus
"Omosaurus armatus n. gen. n. sp." = Dacentrurus armatus Marsh 1877 ornithischian
BMNH 46013
 Sauropterygia - Pliosauridae
Pliosaurus sp.1 Owen 1841 plesiosaur
 Sauropterygia -
Bathyspondylus swindoniensis n. gen. n. sp.2 Delair 1982 plesiosaur
1774 Dev. M.