Species of plated dinosaur Stegosaurus (Morrison Formation, Late Jurassic) of western USA: new type species designation needed

Galton, Peter M.

doi:10.1007/s00015-010-0022-4

Cited by 16 publications

(23 citation statements)

References 25 publications

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“…() were included. The taxonomy of Stegosaurus has recently been stabilized by replacement of the former type species, Stegosaurus armatus , with the better‐known species Stegosaurus stenops (Galton ; ICZN ). Maidment et al .…”

Section: Methodsmentioning

confidence: 99%

A new phylogeny of Stegosauria (Dinosauria, Ornithischia)

Raven

Maidment

2017

Palaeontology

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The stegosaurs are some of the most easily recognisable dinosaurs, but they are surprisingly rare as fossils. Consequently much remains unknown about their palaeobiology, and every new stegosaurian find contr ibutes to understanding the evolution of the clade. Since the last attempt to examine the evolutionary relationships of Stegosauria, new specimens have come to light, including the most complete individual of Stegosaurus ever found, new taxa have been desc ribed and, perhaps most importantly, new methods for analysis of cladistic datasets have been produced. In the light of these new data and technological advances, the phylogenetic relationships of the stegosaurs and basal armoured dinosaurs are investigate d. The inclusion of continuous data results in much better resolution than was previously obtained, and the resulting single most parsimonious tree supports re - erection of the genera Miragaia and Hesperosaurus , which had previously been synonymized with Dacentrurus and Stegosaurus respectively. The recently described genus Alcovasaurus is resolved as a basal thyreophoran, but this is likely to be due to a combination of a very high degree of missing data and the questionable ontogenetic stage of the speci men. Examination of the effects of continuous data on the analysis suggest that while it contains a phylogenetic signal congruent with that of discrete data and provides better resolution than discrete data alone, it can affect t opologies in unpredictable ways, particularly in areas of the tree where there are large amounts of missing data. The phylogeny presented here will form the basis for future work on the palaeobiology of the plated dinosaurs

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Section: Methodsmentioning

confidence: 99%

A new phylogeny of Stegosauria (Dinosauria, Ornithischia)

Raven

Maidment

2017

Palaeontology

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“…All stegosaurs considered valid by Maidment et al (2008) were included. The taxonomy of Stegosaurus has recently been stabilized by replacement of the former type species, Stegosaurus armatus, with the better-known species Stegosaurus stenops (Galton 2010;ICZN 2013). Maidment et al (2008) considered the species synonymous, and character states for S. armatus in that analysis were largely based on the holotype of S. stenops in any case.…”

Section: Taxon Selectionmentioning

confidence: 99%

A new phylogeny of Stegosauria (Dinosauria, Ornithischia)

Raven¹,

Maidment²

2018

Preprint

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The stegosaurs are some of the most easily recognisable dinosaurs, but they are surprisingly rare as fossils. Consequently much remains unknown about their palaeobiology, and every new stegosaurian find contributes to understanding the evolution of the clade. Since the last attempt to examine the evolutionary relationships of Stegosauria, new specimens have come to light, including the most complete individual of Stegosaurus ever found, new taxa have been described and, perhaps most importantly, new methods for analysis of cladistic datasets have been produced. In the light of these new data and technological advances, the phylogenetic relationships of the stegosaurs and basal armoured dinosaurs are investigated. The inclusion of continuous data results in much better resolution than was previously obtained, and the resulting single most parsimonious tree supports re-erection of the genera Miragaia and Hesperosaurus, which had previously been synonymized withDacentrurus and Stegosaurus respectively. The recently described genus Alcovasaurus is resolved as a basal thyreophoran, but this is likely to be due to a combination of a very high degree of missing data and the questionable ontogenetic stage of the specimen.Examination of the effects of continuous data on the analysis suggest that while it contains a phylogenetic signal congruent with that of discrete data and provides better resolution than discrete data alone, it can affect topologies in unpredictable ways, particularly in areas of the tree where there are large amounts of missing data. The phylogeny presented here will form the basis for future work on the palaeobiology of the plated dinosaurs.

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“…In 1880, Marsh published more details of Stegosauria. The description of the postcrania must have been based on S. ungulatus rather than the type specimen, S. armatus, since the type specimen (YPM 1850) is fragmentary (Carpenter and Galton 2001;Galton 2010). Several postcranial bones were figured for the first time, all belonging to S. ungulatus.…”

Section: Stegosaurs From North Americamentioning

confidence: 99%

Stegosauria: a historical review of the body fossil record and phylogenetic relationships

Maidment

2010

Swiss J Geosci

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The first partial skeleton of a stegosaurian dinosaur was discovered in a brick pit in Swindon, UK in 1874. Since then, numerous stegosaurian remains have been discovered from Europe, North America, Africa and Asia, and continue to be discovered regularly. Stegosaurs are known from the Middle Jurassic to the Early Cretaceous; no definitive evidence of the clade is known from younger deposits. New discoveries are improving our understanding of stegosaur biology and showing that stegosaurs were more morphologically diverse than was previously realized. A new phylogeny, which includes all valid stegosaurian taxa, largely agrees with previous studies and shows the European Dacentrurinae was sister taxon to Stegosaurus. Poor resolution at the base of Stegosauria is probably due to the fragmentary nature of many of the Chinese taxa.

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Species of plated dinosaur Stegosaurus (Morrison Formation, Late Jurassic) of western USA: new type species designation needed

Cited by 16 publications

References 25 publications

A new phylogeny of Stegosauria (Dinosauria, Ornithischia)

A new phylogeny of Stegosauria (Dinosauria, Ornithischia)

A new phylogeny of Stegosauria (Dinosauria, Ornithischia)

Stegosauria: a historical review of the body fossil record and phylogenetic relationships

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