Mary Anning's legacy to French vertebrate palaeontology

Vincent, Peggy; Taquet, Philippe; Fischer, Valentin; Bardet, Nathalie; Falconnet, Jocelyn; Godefroit, Pascal

doi:10.1017/s0016756813000861

Cited by 18 publications

(21 citation statements)

References 66 publications

(104 reference statements)

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“…The deep ridges on the enamel continuing on to the root, present on the Skye specimens, are restricted to Ichthyosaurus and Temnodontosaurus (Vincent et al 2014). However, the dentition of the Sinemurian Temnodontosaurus species (T. platyodon and T. eurycephalus) differs from SM 1976.1999.8 and NMS G. 2014.21.1.…”

Section: Institutional Abbreviationsmentioning

confidence: 92%

“…The conditions seen in GLAHM 152378/1-4 appear especially similar to those of Leptonectes spp., Temnodontosaurus trigonodon and Temnodontosaurus azerguensis (McGowan 1996;Motani 1999;Martin et al 2012;Vincent et al 2014). The anterodistal leading edge tuberosity is marked in the basal neoichthyosaurian taxa Leptonectidae and some species of Temnodontosaurus; it is present but not prominent in Suevoleviathan (see Maisch 1998) and seemingly disappears in Thunnosauria (see distribution of character 44 in Fischer et al 2013; it may be present but small and rounded in Hauffiopteryx Caine & Benton 2011).…”

Section: Neoichthyosauria Sander 2000mentioning

confidence: 99%

“…In particular, the tooth crowns of SM 1976.1999.8 are robust and have blunt apices, while the tooth root of NMS G. 2014.21.1 is textured by deep ridges, somewhat rectangular in cross-section and not bulbous. This combination of features is unique to I. communis (Vincent et al 2014). However, keeping in mind the often variable nature of teeth, we conservatively refer these specimens to cf.…”

Section: Institutional Abbreviationsmentioning

confidence: 99%

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Ichthyosaurs from the Jurassic of Skye, Scotland

Brusatte

Young

Challands

et al. 2015

SJG

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Fossils of Mesozoic vertebrates are rare in Scotland, particularly specimens of marine reptiles such as plesiosaurs and ichthyosaurs. We describe a suite of ichthyosaur fossils from the Early to Middle Jurassic of Skye, which to our knowledge are the first ichthyosaurs from Scotland to be described and figured in detail. These fossils span approximately 30 million years, from the Sinemurian to the Bathonian, and indicate that ichthyosaurs were a major component of Scottish marine faunas during this time. The specimens include isolated teeth that could represent the most northerly known occurrences of the widespread Sinemurian species Ichthyosaurus communis, a characteristic component of the famous Lyme Regis faunas of England, suggesting that such faunas were also present in Scotland during the Early Jurassic. An associated humerus and vertebrae from Toarcian-Bajocian-aged deposits are named as a new genus and species of basal neoichthyosaurian, Dearcmhara shawcrossi. The taxonomic affinities of this taxon, which comes from a critical but poorly sampled interval in the fossil record, suggest that non-ophthalmosaurid neoichthyosaurians dominated European assemblages around the Early-Middle Jurassic boundary, and were later replaced by ophthalmosaurids, whose radiation likely took place outside Europe. Many of these specimens were collected by amateurs and donated to museum collections, a co-operative relationship essential to the preservation of Scotland's fossil heritage.

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Section: Institutional Abbreviationsmentioning

confidence: 92%

Section: Neoichthyosauria Sander 2000mentioning

confidence: 99%

Section: Institutional Abbreviationsmentioning

confidence: 99%

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Ichthyosaurs from the Jurassic of Skye, Scotland

Brusatte

Young

Challands

et al. 2015

SJG

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“…In leptonectids (Leptonectes, Excalibosaurus and Eurhinosaurus) and some species of Stenopterygius and Temnodontosaurus, the notch is usually a C shape that is deep, prominent and narrow (McGowan 1974(McGowan , 1989a(McGowan , 1994a(McGowan , 2003Johnson 1979;Maisch & Matzke 2000;Maisch 2008;Vincent et al 2014), although the holotype of Excalibosaurus possesses a slight, incipient notch (McGowan 1989b), similar to that of Suevoleviathan (Maisch 1998). In specimens of Ichthyosaurus the anterior notch is most often a broad and open C shape (Maisch & Matzke 2000;McGowan & Motani 2003).…”

Section: The Taxonomic Usefulness Of Coracoids In Ichthyosaursmentioning

confidence: 99%

“…However, in addition to the unusual shape, the coracoid has several differences. The combined presence of both a small anterior notch, which forms a scapular-coracoid foramen, and a coracoid foramen are features that are not found in any leptonectid (McGowan 1989a(McGowan , 1989b(McGowan , 1993(McGowan , 1994a(McGowan , 1996(McGowan , 2003Vincent et al 2014 Ji et al 2016). These features, together with the morphology of the coracoid foramen, are unique to W. massarae.…”

Section: The Taxonomic Usefulness Of Coracoids In Ichthyosaursmentioning

confidence: 99%

A new leptonectid ichthyosaur from the Lower Jurassic (Hettangian) of Nottinghamshire, England, UK, and the taxonomic usefulness of the ichthyosaurian coracoid

Lomax

2016

Journal of Systematic Palaeontology

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Thousands of ichthyosaurs have been discovered from the rich Lower Jurassic deposits of the UK, with the majority collected from along the Lyme Regis-Charmouth area of the Dorset coast. Here, I describe a new leptonectid ichthyosaur, Wahlisaurus massarae gen. et sp. nov., based on a partial skull and an incomplete skeleton collected from the Lower Jurassic (Hettangian) of Nottinghamshire, England. Wahlisaurus can be referred to the Leptonectidae through the possession of an extremely slender and delicate snout, and a mandible shorter than the snout which produces an overbite. This referral is supported by a phylogenetic analysis. The new taxon is distinguished from other ichthyosaurs through a unique combination of characters and autapomorphies of the pectoral girdle including the presence of both a scapularcoracoid foramen and a large and roughly ovoid coracoid foramen. A coracoid foramen has only previously been reported in the Triassic ichthyosaur Cymbospondylus. The peculiar coracoid morphology further highlights the taxonomic utility of coracoids in ichthyosaurs. The aforementioned features demonstrate that W. massarae cannot be referred to any currently recognized leptonectid. Wahlisaurus is the ninth Lower Jurassic ichthyosaur genus to be recognized worldwide, and the fifth documented in the Lower Lias Group.http://zoobank.org/urn:lsid:zoobank.org:pub:EE500E11-66AB-43C8-BB59-F21654763241

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Two new species of Ichthyosaurus from the lowermost Jurassic (Hettangian) of Somerset, England

Lomax

Massare

2016

Papers in Palaeontology

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All specimens of Ichthyosaurus from the Lower Jurassic of Somerset were previously identified as I. communis, an abundant and extremely variable species. Here, two new species of Ichthyosaurus are recognized from multiple specimens. The species are assigned to Ichthyosaurus on the basis of the humerus, pectoral girdle and forefin morphologies. I. larkini sp. nov. is distinguished by a broad jugal with a blunt anterior end that extends as far forward as the middle of the external naris, separating the maxilla and lacrimal; and a unique combination of other features. I. somersetensis sp. nov. is distinguished by a jugal with a nearly straight dorsal ramus that lacks a right-angle dorsal bend; a high, narrow, crescentic postorbital that forms almost all of the posterior margin of the orbit and separates the jugal dorsal ramus from the orbit; and an ilium that is wide relative to its length, more oblong than rib-like. The identifications are supported by a phylogenetic analysis which finds the new species more closely related to each other than to other species of the genus. We also identify a squamosal in both species, which confirms that it is present in the genus. This study suggests that hindfin morphology has some taxonomic utility, at least within the genus. The new species increases the diversity of Ichthyosaurus to six species, three of which are found in the Hettangian of Somerset.

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Mary Anning's legacy to French vertebrate palaeontology

Abstract: -The real nature of marine reptile fossils found in England between the 1700s and the beginning of the 1900s remained enigmatic until

Cited by 18 publications

References 66 publications

Ichthyosaurs from the Jurassic of Skye, Scotland

Ichthyosaurs from the Jurassic of Skye, Scotland

A new leptonectid ichthyosaur from the Lower Jurassic (Hettangian) of Nottinghamshire, England, UK, and the taxonomic usefulness of the ichthyosaurian coracoid

Two new species of Ichthyosaurus from the lowermost Jurassic (Hettangian) of Somerset, England

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