Protoichthyosaurus prostaxalis Appleby, 1979
Systematics: Sauria Ichthyosauromorpha Ichthyopterygia Ichthyosauria Ichthyosauridae
Size: 3.5 m
Type Horizon and Locality: Early Triassic, Blue Lias Formation (Early Hettangian) England, UK
Type Specimen : BRLSI M3553 (old B. 1963'5/O.S.), partial skull, pectoral girdle and forefins.
February 20, 2022
References:
Lomax, D. R., Massare, J. A., & Mistry, R. T. (2017). The taxonomic utility of forefin morphology in Lower Jurassic ichthyosaurs: Protoichthyosaurus and Ichthyosaurus. Journal of Vertebrate Paleontology, 37(5), e1361433.
Lomax, D. R., & Massare, J. A. (2018). A second specimen of Protoichthyosaurus applebyi (Reptilia: Ichthyosauria) and additional information on the genus and species. Paludicola, 11, 164-178.
Lomax, D. R., Porro, L. B., & Larkin, N. R. (2019). Descriptive anatomy of the largest known specimen of Protoichthyosaurus prostaxalis (Reptilia: Ichthyosauria) including computed tomography and digital reconstruction of a three-dimensional skull. PeerJ, 7, e6112.
Lomax, D. R., Massare, J. A., & Evans, M. (2020). New information on the skull roof of Protoichthyosaurus (Reptilia: Ichthyosauria) and intraspecific variation in some dermal skull elements. Geological Magazine, 157(4), 640-650.
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