This article's factual accuracy is disputed. (October 2020) |
Picrodon is the name given to a genus of archosaur, possibly a sauropodomorph dinosaur,[1] from the Rhaetian of England which was possibly synonymous with the dubious archosaur Avalonianus.[citation needed] The type, and only species, P. herveyi, was named in 1898.[2]
| Picrodon Temporal range: Late Triassic,
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| Holotype tooth | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Archosauromorpha |
| Clade: | Archosauriformes |
| Clade: | Archosauria |
| Genus: | †Picrodon Seeley, 1898 |
| Species: | †P. herveyi
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| Binomial name | |
| †Picrodon herveyi Seeley, 1898
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Discovery and naming edit
In 1894, W. A. Sanford described the fossil remains of what he considered to be two large reptiles discovered near Westbury-on-Severn, Glastonbury (Westbury Formation) by Eev. Sydenham H. A. Hervey and Sanford himself.[3][2] Harry Govier Seeley described the fossils and named two genera: Avalonia (preoccupied; now Avalonianus) and Picrodon; both are based solely on teeth.[2]
Only a single tooth, holotype BMNH R2875, belonging to P. herveyi is known, making the remains not sufficient enough to make judgments on its diet or its classification; although it is agreed that Picrodon was an archosaur to some degree.[citation needed]
Classification edit
Sanford (1894)[3] classified Picrodon as a reptile, while Seeley (1898)[2] classified Picrodon as a saurian. More modern research however almost certainly places Picrodon within Archosauria;[citation needed] Peter Malcolm Galton (1985) suggested that Picrodon may have been a basal sauropodomorph. Currently, its exact phylogenetic placement within Archosauria remains unknown.[citation needed]
References edit
- ^ Galton, Peter M. (1985). "Notes on the Melanorosauridae, a family of large Prosauropod Dinosaurs (Saurischia: Sauropodomorpha)". Geobios. 18 (5): 671–676. Bibcode:1985Geobi..18..671G. doi:10.1016/s0016-6995(85)80065-6. ISSN 0016-6995.
- ^ a b c d H. G. Seeley. 1898. On large terrestrial saurians from the Rhaetic Beds of Wedmore Hill, described as Avalonia sanfordi and Picrodon herveyi. Geological Magazine, decade 4 5:1-6
- ^ a b Proceedings of the Somerset Archaeological Society - vol. xl, 1894, p. 234
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