Where: England, United Kingdom (51.1° N, 2.8° W: paleocoordinates 37.3° N, 1.2° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Psiloceras tilmanni ammonoid zone, Blue Lias Formation (Lias Group), Early/Lower Hettangian (201.3 - 196.5 Ma)
• Earliest Hettangian (Benson et al. 2013). PJW: Originally given as Pre-planorbis zone; the Psiloceras tilmanni is the only Jurassic ammonoid zone preceding the Psiloceras planorbis zone.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Reposited in the BMNH
Primary reference: T. Hawkins. 1834. Memoirs of Ichthyosauri and Plesiosauri, Extinct Monsters of the Ancient Earth vi-51 [M. Carrano/M. Carrano]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 110213: authorized by Matthew Carrano, entered by Hallie Street on 04.06.2011, edited by Matthew Carrano and Bethany Allen
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Ichthyosaurus larkini n. sp.1, "Ichthyosaurus chiroparamekostinus" = Ichthyosaurus communis, "Ichthyosaurus chirostrongulostinus" = Ichthyosaurus tenuirostris
Ichthyosaurus larkini n. sp.1 Lomax and Massare 2017 ichthyosaur BRSUG 25300 (holotype), nearly complete skeleton, previously identified as I. communis
"Ichthyosaurus chiroparamekostinus" = Ichthyosaurus communis Conybeare 1821 ichthyosaur tail, paddle
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"Plesiosaurus hawkinsi" = Thalassiodracon hawkinsii2
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