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Koumpiodontosuchus Temporal range: Barremian, 130–125 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Holotype skull
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauria
Clade:	Pseudosuchia
Clade:	Crocodylomorpha
Clade:	Crocodyliformes
Clade:	Metasuchia
Clade:	Neosuchia
Family:	†Bernissartiidae
Genus:	†Koumpiodontosuchus Sweetman et al., 2015
Type species
†Koumpiodontosuchus aprosdokiti Sweetman et al., 2014

Koumpiodontosuchus is an extinct genus of neosuchian crocodyliform from the Early Cretaceous Wessex Formation of England. The only species is K. aprosdokiti, named in 2014.

Discovery

The first fossilised fragment of a skull was discovered by Diane Trevarthen on a beach near Sandown on the Isle of Wight in March 2011 and it was initially identified as a juvenile of an unknown Goniopholis species. Three months later, the second fragment of the skull was found by Austin and Finley Nathan. The two fragments were donated to Dinosaur Isle. Megan Jacobs also discovered an isolated tooth belonging to the same genus that was twice the size of those from the holotype. The species that the fragments belonged to was named Koumpiodontosuchus aprosdokiti, meaning "unexpected button-toothed crocodile".

When the fragments were first seen by Steve Sweetman, a palaeontologist with the University of Portsmouth, he thought that they belonged to the Bernissartia fagesii species because of its small size and button-shaped teeth. Sweetman published a paper on the discovery of the new species in Acta Palaeontologica Polonica and it was named and described in 2014.

See also

• Wessex Formation
• Barremian

References

1. Sweetman, S.; Pedreira-Segade, U.; Vidovic, S. (2014). "A new bernissartiid crocodyliform from the Lower Cretaceous Wessex Formation (Wealden Group, Barremian) of the Isle of Wight, southern England". Acta Palaeontologica Polonica. doi:10.4202/app.00038.2013.
2. "This crocodile roamed earth with dinosaurs!". Business Standard. 11 March 2014. Retrieved 11 March 2014.
3. ^ "Skull fragments reveal new ancient crocodile species". BBC News. 11 March 2014. Retrieved 11 March 2014.
4. Osbourne, Hannah (11 March 2014). "Tiny Button-Toothed Crocodile Species From 126 Million Years Ago Discovered on Isle of Wight". International Business Times. Retrieved 11 March 2014.
5. "Tiny crocodile skull reveals new ancient species". University of Portsmouth. 11 March 2014. Archived from the original on 19 March 2014. Retrieved 11 March 2014.
6. "A new species of tiny crocodile that lived 126 million years ago has been discovered, from fossils found on the Isle Of Wight". Capital FM. 11 March 2014. Archived from the original on 7 April 2014. Retrieved 11 March 2014.

External links

• Paper on the discovery of the species

v t e Neosuchia
Kingdom: Animalia Phylum: Chordata Class: Sauropsida Clade: Pseudosuchia Clade: Metasuchia Pseudosuchia see Pseudosuchia Neosuchia see below↓
Neosuchia Neosuchia †Burkesuchus †Isisfordia †Karatausuchus †Khoratosuchus †Montsecosuchus †Stolokrosuchus? †Susisuchus †Tadzhikosuchus? †Wahasuchus? †Zhyrasuchus? †Thalattosuchia? †Tethysuchia Pholidosauridae Anglosuchus Chalawan Crocodilaemus Dakotasuchus Elosuchus Meridiosaurus Oceanosuchus Pholidosaurus Sarcosuchus Terminonaris Vectisuchus Woodbinesuchus Dyrosauridae Acherontisuchus Anthracosuchus Arambourgisuchus Atlantosuchus Brachiosuchus Cerrejonisuchus Chenanisuchus Congosaurus Dorbignysuchus Dyrosaurus Fortignathus Guarinisuchus Hyposaurus Luciasuchus Phosphatosaurus Rhabdognathus Rodeosuchus Sabinosuchus? Sokotosuchus Tilemsisuchus †Atoposauridae Alligatorellus Alligatorium Aprosuchus Atoposaurus Knoetschkesuchus Sabresuchus Theriosuchus Varanosuchus †Stomatosuchidae Laganosuchus Stomatosuchus †Paluxysuchidae Deltasuchus Paluxysuchus †Goniopholididae Amphicotylus Anteophthalmosuchus Calsoyasuchus Coelosuchus Denazinosuchus Diplosaurus Eutretauranosuchus Goniopholis Hulkepholis Nannosuchus Ophiussasuchus Oweniasuchus Pinacosuchus? Siamosuchus Sunosuchus Symptosuchus? †Bernissartiidae Bernissartia Koumpiodontosuchus †Paralligatoridae Batrachomimus Brillanceausuchus Kansajsuchus Paralligator Rugosuchus Scolomastax Shamosuchus Tarsomordeo Turanosuchus Wannchampsus Yanjisuchus Eusuchia see below↓
Eusuchia Eusuchia †Borealosuchus †Confractosuchus †Dolichochampsa †Gilchristosuchus †Heterosuchus †Isisfordia? †Portugalosuchus †Pristichampsus †Susisuchus? †Titanochampsa? †Atoposauridae? †Bernissartiidae? †Paralligatoridae? †Hylaeochampsidae Acynodon? Hylaeochampsa Iharkutosuchus Pachycheilosuchus? Pietraroiasuchus Turcosuchus Unasuchus †Allodaposuchidae Agaresuchus Allodaposuchus Arenysuchus? Ischyrochampsa Lohuecosuchus Massaliasuchus Musturzabalsuchus? †Aegyptosuchidae Aegyptosuchus Aegisuchus †"Thoracosaurs" Argochampsa Eogavialis Eosuchus Eothoracosaurus Thoracosaurus †Planocraniidae Boverisuchus Duerosuchus Planocrania Crocodilia see Crocodilia for extant taxa, and Extinct Crocodilia for extinct ones
See also: Coelognathosuchia Category

• Extinct animals of Europe
• Early Cretaceous crocodylomorphs of Europe
• Prehistoric pseudosuchian genera