Brighstoneus Lockwood & Martill & Maidment 2021, gen. nov.

• Main Authors: Lockwood, Jeremy A. F., Martill, David M., Maidment, Susannah C. R.
• Format: Text
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Ornithischia; Brighstoneus; Svalbard; Norway; Jeremy; Lockwood; Bodin
• Online Access: https://dx.doi.org/10.5281/zenodo.5701347; https://zenodo.org/record/5701347

Brighstoneus gen. nov. Etymology. Brighstoneus is named after the village of Brighstone on the Isle of Wight, which is close to the excavation site and was home to the Reverend William Fox, a celebrated Victorian fossil collector whose discoveries had a major impact on early dinosaurian research. Type species. Brighstoneus simmondsi gen. et sp. nov. Diagnosis. As for type and only species (see below). Locality and horizon. Wessex Formation, early Barremian, Lower Cretaceous. MIWG 6344 was excavated during 1978, from a plant debris bed (L9 of Stewart 1978) to the west of Grange Chine on the south coast of the Isle of Wight (Fig. 2). Comment on association. The skeleton was found associated with one of the UK’ s most complete theropods, Neovenator salerii Hutt et al. , 1996 (MIWG 6348; Brusatte et al. 2008). Both individuals were contained, with some overlap, in an area of ~ 3 × 6 m. There was no articulated material, but preservation was consistent across individual elements and there was no replication of material or other iguanodontian material found during the excavation. The material was stored at the Museum of the Isle of Wight Geology, who were also involved in the excavation. The then curator is confident that the material was associated (S. Hutt, pers. comm. 2021). Some photographs and drawings of the site are included in Supplementary material (Figs S1–S5) and hard copies of other contemporaneous records have been accessioned under MIWG 6344. Comment on stratigraphy. The base of the Barremian stage within the Wessex Formation lies west of Sudmoor Point and has been dated to 126.5 Ma (Gale et al. 2020), while the Barremian–Aptian boundary at the base of Chron M0, on the basis of dates from Svalbard (Zhang et al. 2019), is given as 121.4 Ma (Gale et al. 2020). This gives the Barremian a duration of approximately 5.1 Ma compared to earlier estimates of 4.5 Ma based on phosphorus burial rates (Bodin et al. 2006). The Mantellisaurus atherfieldensis holotype was found following a cliff fall from the Shepherds Chine Member of the Vectis Formation in 1914 (Hooley 1925) and was probably from earliest Aptian strata, making it approximately 4.0 Ma younger than Brighstoneus simmondsi , assuming uniform depositional rates. : Published as part of Lockwood, Jeremy A. F., Martill, David M. & Maidment, Susannah C. R., 2021, A new hadrosauriform dinosaur from the Wessex Formation, Wealden Group (Early Cretaceous), of the Isle of Wight, southern England, pp. 847-888 in Journal of Systematic Palaeontology 19 (12) on pages 3-4, DOI: 10.1080/14772019.2021.1978005, http://zenodo.org/record/5696995 : {"references": ["Stewart, D. J. 1978. The sedimentology and palaeoenvironment of the Wealden Group of the Isle of Wight, southern England. Unpublished PhD thesis, University of Portsmouth, 346 pp.", "Hutt, S., Martill, D. M. & Barker, M. J. 1996. The first European allosauroid dinosaur (Lower Cretaceous, Wealden Group, England). Neues Jahrbuch fur Geologie und Palaontologie, Monatshefte, 10, 635 - 644.", "Brusatte, S. L., Benson, R. B. J. & Hutt, S. 2008. The osteology of Neovenator salerii (Dinosauria: Theropoda) from the Wealden Group (Barremian) of the Isle of Wight. Palaeontographical Society Monographs, 162, 1 - 75 t 45 pls.", "Allen, P. & Wimbledon, W. A. 1991. Correlation of NW European Purbeck-Wealden (non-marine Lower Cretaceous) as seen from the English type-areas. Cretaceous Research, 12, 511 - 526.", "Sweetman, S. C. 2007. Aspects of the microvertebrate fauna of the Early Cretaceous (Barremian) Wessex Formation of the Isle of Wight, southern England. Unpublished PhD thesis, University of Portsmouth, 316 pp. https: // pure. port. ac. uk / ws / portalfiles / portal / 6060512 / SCS _ 2007 _ PhD _ Thesis. pdf", "Gale, A. S., Mutterlose, J., Batenburg, S., Gradstein, F. M., Agterberg, F. P., Ogg, J. G. & Petrizzo, M. R. 2020. The Cretaceous Period. Pp. 1 - 63 in F. M. Gradstein, J. G. Ogg, M. D. Schmitz & G. M. Ogg (eds) Geologic time scale 2020. Volume 2. Elsevier, Amsterdam.", "Zhang, Y., Ogg, J. G., Minguez, D. A., Hounslow, M., Olaussen, S., Gradstein, F. M. & Esmeray Senlet, S. 2019. Magnetostratigraphy of U / Pb-dated boreholes in Svalbard, Norway, implies that the Barremian - Aptian boundary (beginning of Chron M 0 r) is 121.260. 4 Ma. AGU Annual Meeting (San Francisco, 9 - 13 December 2019). GP 44 A- 06. https: // agu. confex. com / agu / fm 19 / meetingapp. cgi / Paper / 577991.", "Bodin, S., Godet, A., F \u00a8 ollmi, K. B., Vermeulen, J., Arnaud, H. & Strasser, A. 2006. The late Hauterivian Faraoni oceanic anoxic event in the western Tethys: evidence from phosphorus burial rates. Palaeogeography, Palaeoclimatology, Palaeoecology, 235, 245 - 264.", "Hooley, R. W. 1925. On the skeleton of Iguanodon atherfieldensis sp. nov., from the Wealden Shales of Atherfield (Isle of Wight). Quarterly Journal of the Geological Society of London, 81, 1 - 61."]}