# Bentonyx

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Extinct genus of reptiles

Bentonyx Temporal range: Middle Triassic, Anisian PreꞒ Ꞓ O S D C P T J K Pg N Skull Scientific classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: †Rhynchosauria Family: †Hyperodapedontidae Genus: †Bentonyx Langer et al., 2010 Species †B. sidensis Langer et al., 2010 (type)

***Bentonyx*** (meaning "Bentons's claw") is an [extinct](/source/Extinct) [genus](/source/Genus) of [rhynchosaur](/source/Rhynchosaur) from the middle [Triassic](/source/Triassic) epoch of [Devon](/source/Devon) in [England](/source/England).[1] Its fossil, a well preserved [skull](/source/Skull), [BRSUG 27200](http://www.3d-fossils.ac.uk/fossilType.cfm?typSampleId=25000781), was discovered in [Otter Sandstone Formation](/source/Otter_Sandstone_Formation) (late [Anisian](/source/Anisian) age) and was first assigned to *[Rhynchosaurus spenceri](/source/Rhynchosaurus)*, that is known from 25 specimens. This species was reassigned to its own genus, *[Fodonyx](/source/Fodonyx)*, that was first described by David W. E. Hone and [Michael Benton](/source/Michael_Benton) in [2008](/source/2008_in_paleontology).[2] More recently, this skull was reassigned to this genus by Max C. Langer, Felipe C. Montefeltro, David E. Hone, Robin Whatley and Cesar L. Schultz in [2010](/source/2010_in_paleontology) and the type species is *Bentonyx sidensis*.[1][3][4]

		- *Bentonyx* skull drawings in front-on (A1/top left), rear-on (A2/top right), and side on (A3+A4)

		- *Bentonyx* skull scan in front-on (A1/top left), rear-on (A2/top right), and side on (A3+A4)

		- *Bentonyx* skull drawing in top down (A1/top), from below (A2/Middle) and palatal view without maxilla (A3/bottom)

		- *Bentonyx* skull scan in top down (A1/top), from below (A2/Middle) and palatal view without maxilla (A3/bottom)

The [Cladogram](/source/Cladogram) below is based on work by [Martin Ezcurra](/source/Martin_Ezcurra) *et al*.[5]

Rhynchosauria Noteosuchus Mesosuchus Howesia Eohyosaurus Rhynchosauridae Rhynchosaurus Stenaulorhynchinae Mariante rhynchosaur Stenaulorhynchus Langeronyx Bentonyx Fodonyx Hyperodapedontinae Isalorhynchus Teyumbaita Hyperodapedon

## References

1. ^ [***a***](#cite_ref-Langeretal_1-0) [***b***](#cite_ref-Langeretal_1-1) Max C. Langer; Felipe C. Montefeltro; David E. Hone; Robin Whatley; Cesar L. Schultz (2010). "On *Fodonyx spenceri* and a new rhynchosaur from the Middle Triassic of Devon". *Journal of Vertebrate Paleontology*. **30** (6): 1884–1888. [Bibcode](/source/Bibcode_(identifier)):[2010JVPal..30.1884L](https://ui.adsabs.harvard.edu/abs/2010JVPal..30.1884L). [doi](/source/Doi_(identifier)):[10.1080/02724634.2010.521901](https://doi.org/10.1080%2F02724634.2010.521901). [S2CID](/source/S2CID_(identifier)) [53405231](https://api.semanticscholar.org/CorpusID:53405231).

1. **[^](#cite_ref-HoneBenton_2-0)** David W. E. Hone & [Michael J. Benton](/source/Michael_Benton) (2008). ["A new genus of Rhynchosaur from the Middle Triassic of South-West England"](https://doi.org/10.1111%2Fj.1475-4983.2007.00739.x). *Palaeontology*. **51** (1): 95–115. [Bibcode](/source/Bibcode_(identifier)):[2008Palgy..51...95H](https://ui.adsabs.harvard.edu/abs/2008Palgy..51...95H). [doi](/source/Doi_(identifier)):[10.1111/j.1475-4983.2007.00739.x](https://doi.org/10.1111%2Fj.1475-4983.2007.00739.x).

1. **[^](#cite_ref-3)** [3d-fossils.ac.uk - BRSUG 27200](http://www.3d-fossils.ac.uk/fossilType.cfm?typSampleId=25000781)

1. **[^](#cite_ref-4)** [Paleobiology Database - Bentonyx](https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=173528)

1. **[^](#cite_ref-Ezcurra_etal_5-0)** Martin D. Ezcurra; Felipe C. Montefeltro; Richard J. Butler (2016). ["The Early Evolution of Rhynchosaurs"](https://doi.org/10.3389%2Ffevo.2015.00142). *Frontiers in Ecology and Evolution*. **3**: 142. [doi](/source/Doi_(identifier)):[10.3389/fevo.2015.00142](https://doi.org/10.3389%2Ffevo.2015.00142). [hdl](/source/Hdl_(identifier)):[11336/44040](https://hdl.handle.net/11336%2F44040).

- [Paleontology portal](https://en.wikipedia.org/wiki/Portal:Paleontology)

v t e Rhynchosauria Kingdom: Animalia Phylum: Chordata Class: Sauropsida Clade: Archosauromorpha Clade: Crocopoda Sauropsida see Sauropsida Archosauromorpha see Archosauromorpha Rhynchosauria see below↓ Rhynchosauria Rhynchosauria Colobops? Eohyosaurus Howesia Mesosuchus Noteosuchus Rhynchosauridae Bentonyx Eifelosaurus Fodonyx Langeronyx Rhynchosaurus Stenaulorhynchinae Ammorhynchus Brasinorhynchus Elorhynchus Mesodapedon Stenaulorhynchus Hyperodapedontinae Beesiiwo Hyperodapedon Isalorhynchus Isodapedon Macrocephalosaurus Oryctorhynchus Paradapedon Supradapedon Teyumbaita Category

Taxon identifiers Bentonyx Wikidata: Q4890661 EoL: 19693521 GBIF: 8679182 Open Tree of Life: 6156523 Paleobiology Database: 173528

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Adapted from the Wikipedia article [Bentonyx](https://en.wikipedia.org/wiki/Bentonyx) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Bentonyx?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.