Ringstead Bay, Weymouth (Jurassic to of the United Kingdom)

Where: England, United Kingdom (50.6° N, 2.3° W: paleocoordinates 41.4° N, 7.7° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Aulacostephanus euxodus to Pectinatites pectinatus ammonoid zone, Kimmeridge Clay Formation, Late/Upper Kimmeridgian to Late/Upper Kimmeridgian (155.7 - 145.0 Ma)

• The Kimmerdige Clay Formation at Ringstead Bay extends from the upper part of the Aulacostephanus euxodus Zone to the Pectinatites pectinatus zone according to Cox & Gallois (1981). This is Late Kimmeridgian to Early Tithonian (Gradstein et al. 2012).

• formation-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by Miss C. Ouless in 1912

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

Primary reference: J. B. Delair. 1960. The Mesozoic reptiles of Dorset. Part two. Proceedings of the Dorset Natural History and Archaeological Society 80:52-90 [M. Carrano/M. Carrano/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140224: authorized by Roger Benson, entered by Roger Benson on 05.03.2013, edited by Jonathan Tennant and Matthew Carrano

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Squatiniformes - Squatinidae
Squatina frequens n. sp.3 Underwood 2002 angel shark
P65698 (holotype - tooth)
Squatina alifera3 Münster 1842 angel shark
One tooth with damaged cusp, P65697
 Hybodontiformes - Hybodontidae
Hybodus sp.3 Agassiz 1837 elasmobranch
P65670, one incomplete crown; four partial teeth
Hybodus obtusus3 Agassiz 1843 elasmobranch
Fragments of at least 20 teeth
 Rajiformes - Rhinobatidae
Spathobatis bugesiacus3 Thiollière 1854 guitarfish
49 complete and partial teeth
 Euselachii - Protospinacidae
Protospinax planus n. sp.3 Underwood 2002 elasmobranch
P65694 (holotype - tooth)
 Orectolobiformes - Ginglymostomatidae
Cantioscyllium sp.3 Woodward 1889 nurse shark
One partial tooth, P65677
 Orectolobiformes - Hemiscylliidae
Hemiscylliidae indet.3 Gill 1862 carpet shark
One partial tooth, P65679
Pseudospinax sp.3 Müller and Diedrich 1991 carpet shark
Single tooth lacking root, P65678
 Carchariniformes - Scyliorhinidae
Palaeoscyllium formosum3 Wagner 1857 cat shark
129 entire and partial teeth
 Heterodontiformes - Heterodontidae
Heterodontus cf. semirugosus3 Plieninger 1847 bullhead shark
Two imperfect anterior teeth, P65711-2
Paracestracion falcifer3 Wagner 1857 bullhead shark
36 anterior and juvenile teeth
 Synechodontiformes - Paleospinacidae
Synechodus plicatus n. sp.3 Underwood 2002 elasmobranch
P65686 (holotype - tooth)
 Chimaeriformes - Callorhynchidae
Ischyodus sp.3 Egerton 1843 plownose chimaera
One mandibular plate, P65713
Reptilia
 Loricata - Teleosauridae
Steneosaurus sp.1 Saint-Hilaire 1825 marine crocodile
 Sauropterygia - Pliosauridae
Pliosaurus portentificus2 Noè et al. 2004 plesiosaur
DORCM G117; small, incomplete and poorly preserved pliosaurian mandible, including a complete mandibular symphysis (260 mm in length) containing eight tooth positions