First dinosaur remains from Ireland

Simms, Michael J.; Smyth, Robert S.H.; Martill, David M.; Collins, Patrick C.; Byrne, Roger

doi:10.1016/j.pgeola.2020.06.005

Cited by 6 publications

(2 citation statements)

References 55 publications

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“…These exposures, although not previously described, are significant because all biohorizons of the Planorbis Subzone and basal Johnstoni Subzone are present in mudstones that have not been thermally metamorphosed. The northern end of the outcrop is also the source of the only dinosaur remains yet found in Ireland (Simms et al, 2020). The exposures are described here from south to north and the succession summarised as a composite log and correlated with the other exposures in Figure 8.…”

Section: The Gobbins Islandmageementioning

confidence: 99%

Carbon isotopes, ammonites and earthquakes: Key Triassic-Jurassic boundary events in the coastal sections of south-east County Antrim, Northern Ireland, UK

Jeram

Simms

Hesselbo

et al. 2021

Proceedings of the Geologists' Association

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Section: The Gobbins Islandmageementioning

confidence: 99%

Carbon isotopes, ammonites and earthquakes: Key Triassic-Jurassic boundary events in the coastal sections of south-east County Antrim, Northern Ireland, UK

Jeram

Simms

Hesselbo

et al. 2021

Proceedings of the Geologists' Association

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“…An isolated fibula from the upper Sinemurian of southwestern England has been identified as belonging to a non-coelophysoid, non-averostran early branching neotheropod (Choiniere et al, 2020). A fragment of tibial shaft from the Hettangian of north-eastern Ireland has been interpreted as an early branching averostran-line taxon or a megalosauroid tetanuran (Simms et al, 2021). Finally, fragmentary specimens from Great Britain and Luxembourg that are represented by isolated teeth or partial hindlimb bones have not been identified beyond Theropoda or Neotheropoda indet.…”

Section: Sarcosaurus Woodimentioning

confidence: 99%

A revision of the ‘coelophysoid-grade’ theropod specimen from the Lower Jurassic of the Isle of Skye (Scotland )

Ezcurra,

Marke,

Walsh

et al. 2023

SJG

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The broadest diversification of early predatory dinosaurs is represented by the ‘coelophysoid-grade’ neotheropods, but their Hettangian–Sinemurian (ca. 191–201 Ma) record is scarce worldwide. More information is needed to shed light on the evolution of this dinosaur group after the end-Triassic mass extinction (ca. 201 Ma). Here we revisit the anatomy and phylogeny of one of these earliest Jurassic neotheropod specimens, an isolated partial tibia from the lower Sinemurian of the Isle of Skye (Scotland) that was previously identified as probably closely related to Liliensternus liliensterni and coelophysids. However, we found that the Skye specimen is positioned in the branch leading to Averostra (Ceratosauria + Tetanurae), in a polytomy with Sarcosaurus woodi from the late Hettangian–lower Sinemurian of central England and a clade composed of Tachiraptor admirabilis and Averostra. The morphology of the Skye specimen is congruent with that of referred specimens of Sarcosaurus woodi , but because it probably represents a skeletally immature specimen, we assign it to cf. Sarcosaurus woodi . The Skye specimen increases the number of averostran-line neotheropod specimens recorded in the Lower Jurassic of Europe and current evidence indicates that these forms, and not coelophysoids, were relatively common in this part of the world at that time. Thematic collection: This article is part of the Palaeontology of Scotland collection available at: https://www.lyellcollection.org/topic/collections/palaeontology-of-scotland Supplementary material: https://doi.org/10.6084/m9.figshare.c.6863016

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