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Correction: The last giants: New evidence for giant Late Triassic (Rhaetian) ichthyosaurs from the UK

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Authors:
Dean R. Lomax at The University of Manchester
Dean R. Lomax
Paul De la Salle at Museum of Jurassic Marine Life
Paul De la Salle
  • Museum of Jurassic Marine Life
Marcello Perillo at University of Bonn
Marcello Perillo
Justin Reynolds
Justin Reynolds
Justin Reynolds
  • This person is not on ResearchGate, or hasn't claimed this research yet.
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CORRECTION
Correction: The last giants: New evidence for
giant Late Triassic (Rhaetian) ichthyosaurs
from the UK
Dean R. Lomax, Paul de la Salle, Marcello Perillo, Justin Reynolds, Ruby Reynolds, James
F. Waldron
There is an error in the caption for Fig 4, "Invertebrate and trace fossils found on the bone sur-
face of the BAS surangular, BRSMG Cg3178," panel B. Please see the complete, correct Fig 4
caption here.
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PLOS ONE | https://doi.org/10.1371/journal.pone.0317938 January 16, 2025 1 / 2
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Citation: Lomax DR, de la Salle P, Perillo M,
Reynolds J, Reynolds R, Waldron JF (2025)
Correction: The last giants: New evidence for giant
Late Triassic (Rhaetian) ichthyosaurs from the UK.
PLoS ONE 20(1): e0317938. https://doi.org/
10.1371/journal.pone.0317938
Published: January 16, 2025
Copyright: ©2025 Lomax et al. This is an open
access article distributed under the terms of the
Creative Commons Attribution License, which
permits unrestricted use, distribution, and
reproduction in any medium, provided the original
author and source are credited.
Reference
1. Lomax DR, de la Salle P, Perillo M, Reynolds J, Reynolds R, Waldron JF (2024) The last giants: New
evidence for giant Late Triassic (Rhaetian) ichthyosaurs from the UK. PLOS ONE 19(4): e0300289.
https://doi.org/10.1371/journal.pone.0300289 PMID: 38630678
Fig 4. Invertebrate and trace fossils found on the bone surface of the BAS surangular, BRSMG Cg3178. A-B. Associated bivalves, including Atreta
intrusstriata (A) and Plagiostoma punctatum (B); it is worth noting that a small group of the latter are preserved adjacent to the coronoid process, see Fig 2C.
C-D. Examples of the probable scavenging marks that are also observed in the Lilstock surangular, see Lomax et al. 2018, Fig 4.
https://doi.org/10.1371/journal.pone.0317938.g001
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PLOS ONE | https://doi.org/10.1371/journal.pone.0317938 January 16, 2025 2 / 2
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The last giants: New evidence for giant Late Triassic (Rhaetian) ichthyosaurs from the UK
Article
Full-text available
Giant ichthyosaurs with body length estimates exceeding 20 m were present in the latest Triassic of the UK. Here we report on the discovery of a second surangular from the lower jaw of a giant ichthyosaur from Somerset, UK. The new find is comparable in size and morphology to a specimen from Lilstock, Somerset, described in 2018, but it is more complete and better preserved. Both finds are from the uppermost Triassic Westbury Mudstone Formation (Rhaetian), but the new specimen comes from Blue Anchor, approximately 10 km west along the coast from Lilstock. The more complete surangular would have been >2 m long, from an individual with a body length estimated at ~25 m. The identification of two specimens with the same unique morphology and from the same geologic age and geographic location warrants the erection of a new genus and species, Ichthyotitan severnensis gen. et sp. nov. Thin sections of the new specimen revealed the same histological features already observed in similar giant ichthyosaurian specimens. Our data also supports the previous suggestion of an atypical osteogenesis in the lower jaws of giant ichthyosaurs. The geological age and giant size of the specimens suggest shastasaurid affinities, but the material is too incomplete for a definitive referral. Ichthyotitan severnensis gen. et sp. nov., is the first-named giant ichthyosaur from the Rhaetian and probably represents the largest marine reptile formally described.
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