Bentonyx (meaning "Bentons's claw") is an extinct genus of rhynchosaur from the middle Triassic epoch of Devon in England.[1] Its fossil, a well preserved skull, BRSUG 27200, was discovered in Otter Sandstone Formation (late Anisian age) and was first assigned to Rhynchosaurus spenceri, that is known from 25 specimens. This species was reassigned to its own genus, Fodonyx, that was first described by David W. E. Hone and Michael Benton in 2008.[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 and the type species is Bentonyx sidensis.[1][3][4]
The Cladogram below is based on work by Martin Ezcurra et al.[5]
Rhynchosauria
Noteosuchus
Mesosuchus
Howesia
Eohyosaurus
Rhynchosauridae
Rhynchosaurus
Stenaulorhynchinae
Mariante rhynchosaur
Stenaulorhynchus
Langeronyx
Bentonyx
Fodonyx
Hyperodapedontinae
Isalorhynchus
Teyumbaita
Hyperodapedon
^ abMax 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:2010JVPal..30.1884L. doi:10.1080/02724634.2010.521901. S2CID 53405231.
^David W. E. Hone & Michael J. Benton (2008). "A new genus of Rhynchosaur from the Middle Triassic of South-West England". Palaeontology. 51 (1): 95–115. Bibcode:2008Palgy..51...95H. doi:10.1111/j.1475-4983.2007.00739.x.
^3d-fossils.ac.uk - BRSUG 27200
^Paleobiology Database - Bentonyx
^Martin D. Ezcurra; Felipe C. Montefeltro; Richard J. Butler (2016). "The Early Evolution of Rhynchosaurs". Frontiers in Ecology and Evolution. 3: 142. doi:10.3389/fevo.2015.00142. hdl:11336/44040.
Bentonyx (meaning "Bentons's claw") is an extinct genus of rhynchosaur from the middle Triassic epoch of Devon in England. Its fossil, a well preserved...
of the Permian extinction. In December 2010, Benton had a rhynchosaur (Bentonyx) named in his honour. Benton founded the Master of Science degree programme...
J. Benton in 2008. In 2010, one skull was reassigned to the new genus Bentonyx. It is distinguished from other rhynchosaurs by a single autapomorphy,...
Norian American Southwest. Redescription of the skull of the holotype of Bentonyx sidensis, including description of previously obscured anatomical details...
likely referred to other basal rhynchosaurids (like Fodonyx spenceri and Bentonyx sidensis from the coeval Otter Sandstone Formation, UK). L. brodiei is...
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