Also known as Portland Island
Where: England, United Kingdom (50.6° N, 2.4° W: paleocoordinates 41.3° N, 7.6° E)
• coordinate based on political unit
• small collection-level geographic resolution
When: Titanites anguiformis ammonoid zone, Portland Freestone Member (Portland Stone Formation), Late/Upper Tithonian (150.8 - 145.0 Ma)
• Titanites giganteus (=Titanites anguiformis) Zone; likely the Portland Freestone Member based on geography
• member-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Reposited in the BMNH
Collection methods: quarrying,
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 119505: authorized by Roger Benson, entered by Roger Benson on 29.10.2011, edited by Matthew Carrano
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Pleurosternum portlandicum" = Pleurosternon bullockii1
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"Pliosaurus portlandicus n. sp." = Colymbosaurus trochanterius2, "Colymbosaurus ? portlandicus" = Colymbosaurus trochanterius, "Cryptocleidus aff. richardsoni" = Cryptoclidus richardsoni
"Pliosaurus portlandicus n. sp." = Colymbosaurus trochanterius2 Owen 1840 plesiosaur BMNH 40640 (holotype: partial 'juvenile' right hindlimb)
"Colymbosaurus ? portlandicus" = Colymbosaurus trochanterius Owen 1840 plesiosaur BMNH 41216 (caudal centrum), 41217 (left scapula and coracoid) first reported by Lydekker (1889, p. 169)
"Cryptocleidus aff. richardsoni" = Cryptoclidus richardsoni Lydekker 1889 plesiosaur "Additional fragments very probably belonging to this species" (no detailed given)
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Plesiosaurus megapleuron Owen 1854 plesiosaur "Vertebrae and other bones...lowest beds of the Portlandian series" mentioned by Damon (1860, p. 82), but it is not clear what material he was referring to
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"? Crocodilia indet." = Crocodylia1
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