Polacanthus, deriving its name from the Ancient Greek polys-/πολύς- "many" and akantha/ἄκανθα "thorn" or "prickle",[5] is an early armoured, spiked, plant-eating ankylosaurian dinosaur from the early Cretaceous period of England.
In the genus Polacanthus several species have been named but only the type species Polacanthus foxii is today seen as valid.
Polacanthus was a quadrupedal ornithischian or "bird-hipped" dinosaur. It lived 130 to 125 million years ago in what is now western Europe.[6]Polacanthus foxii was named after a find on the Isle of Wight in 1865. There are not many fossil remains of this creature, and some important anatomical features, such as its skull, are poorly known. Early depictions often gave it a very generic head as it was only known from the rear half of the creature. It grew to about 5 metres (16 ft) long. Its body was covered with armour plates and spikes. It possibly was a basal member of the Nodosauridae.
^Genus authority given as Huxley, 1867 in some sources, such as the second edition of The Dinosauria.
^Hulke, J.W., 1881. "Polacanthus foxii, a large undescribed dinosaur from the Wealden formation in the Isle of Wight". Philosophical Transactions of the Royal Society of London172: 653 - 662 https://doi.org/10.1098/rstl.1881.0015
^Delair, J.B., (1982), "Notes on an armoured dinosaur from Barnes High, Isle of Wight", Proceedings of the Isle of Wight Natural History and Archaeological Society for 1980, 7(5): 297-302
^Cite error: The named reference Blows1987 was invoked but never defined (see the help page).
^Liddell & Scott (1980). Greek-English Lexicon, Abridged Edition. Oxford University Press, Oxford, UK. ISBN 0-19-910207-4.
^Holtz, Thomas R. Jr. (2012) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages,https://www.geol.umd.edu/~tholtz/dinoappendix/appendix.html
In the genus Polacanthus several species have been named but only the type species Polacanthus foxii is today seen as valid. Polacanthus was a quadrupedal...
Pereda-Suberbiola both considered the genus to be the same as Polacanthus, creating the new combination Polacanthus marshii, but this has since been rejected. Ken Carpenter...
hindlimbs, and several osteoderms. At first the remains were assigned to Polacanthus. The fossil material was initially described in a PhD thesis by Thomas...
certainty be associated with the species, in view of the presence of Polacanthus in the same layers. Additional remains have been referred to Hylaeosaurus...
remains. In 1996, on basis of the finds, a new species of the genus Polacanthus, Polacanthus rudgwickensis, was named and described by Blows. The specific name...
Polacanthoides (meaning like Polacanthus) is an invalid genus of nodosaurid dinosaur from Europe. It lived about 140 to 135 million years ago in what...
Nodosaurus textilis but not Hylaeosaurus armatus, Mymoorapelta maysi, or Polacanthus foxii, and was formally defined in 2021 by Madzia and colleagues, who...
new dinosaur genera, including Aristosuchus, Hypsilophodon foxii, and Polacanthus. Most of the discoveries were then transferred to the mainland for study...
Stegopelta, Hoplitosaurus, Hierosaurus, Ankylosaurus, and placed the British Polacanthus as a relative of the family. Within Nodosauridae, Nodosaurus falls out...
America and Asia. The group is defined as the largest clade closer to Polacanthus foxii than Nodosaurus textilis or Ankylosaurus magniventris, as long...
Podokesaurus Poekilopleuron Polacanthoides – chimera of Hylaeosaurus and PolacanthusPolacanthus Polyodontosaurus Polyonax Ponerosteus – subsequently found to be...
clade. Thompson et al. (2012) recovered Peloroplites as sister taxon to Polacanthus, a position also recovered by Chen et al. (2013). However, Yang et al...
of Great Britain. 1852 1: 141–146 Blows W.T. (1996) "A new species of Polacanthus (Ornithischia; Ankylosauria) from the Lower Cretaceous of Sussex, England"...
Williston also stated that a skeletal reconstruction of the related Polacanthus by Hungarian paleontologist Franz Nopcsa was a better example of how...
early Cretaceous period, such as Ceratosuchops, Riparovenator, Baryonyx, Polacanthus, Iguanodon and Eotyrannus. The holotype bones were mixed with those of...
genus. Polacanthoides ponderosus: Potentially a synonym of Hylaeosaurus, Polacanthus or both (a chimera). Proplanicoxa galtoni: May be a junior synonym of...
Ornithopsis, Eucamerotus, and Chondrosteosaurus; and the ankylosaur Polacanthus. Barker and colleagues stated in 2021 that the identification of the...
mate. He flies past a migrating group of Iguanodon and the nodosaur Polacanthus. He reaches the southern tip of North America, where he is forced to...
"Vectensia" based on specimen GH 981.45, an armour plate. Like the holotype of Polacanthus it was found at Barnes High, but reportedly in an older layer, of the...
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