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{{Short description|Extinct genus of reptiles}}
{{Automatic taxobox
| fossil_range = {{fossilrange|Early Eocene|Middle Eocene}}
| image = Dollosuchus_dixoni.jpg
| image_caption = Fossils referred to ''[[Gavialis]] dixoni'' (now ''Dollosuchus dixoni'') by [[Richard Owen]]
| taxon = Dollosuchus
| authority = Swinton, 1937 ''vide'' [[Richard Owen|Owen]], 1850
| type_species = {{extinct}}'''''Dollosuchus dixoni'''''
| type_species_authority = [[Richard Owen|Owen]], 1850
| synonyms =
*''[[Brasilosuchus|Brasilosuchus mendesi]]''? Souza-Filho & Bocquetin-Villanueva, 1989
*''[[Charactosuchus|Charactosuchus kugleri]]''? Berg, 1969
*''[[Kentisuchus|Kentisuchus spenceri]]''? [[Charles Mook|Mook]], 1955
*''[[Gavialis]] dixoni'' Owen, 1849
*''[[Megadontosuchus|Megadontosuchus arduini]]''? Mook, 1955
}}

'''''Dollosuchus''''' (meaning "[[Louis Dollo]]'s crocodile") is an [[extinct]] [[monospecific]] [[genus]] of [[tomistomine]] [[crocodilia]]n originally named as a species of ''[[Gavialis]]''.<ref>Owen, R. (1849). ''A History of British Fossil Reptiles, Part I''. 1-328</ref> It is a [[basal (phylogeny)|basal]] form possibly related to ''[[Kentisuchus]]'', according to several [[Phylogenetics|phylogenetic analyses]] that have been conducted in recent years,<ref>Jouve, S. (2004). ''Etude des crocodyliformes fini Crétace−Paléogène du Bassin de Oulad Abdoun (Maroc) et comparaison avec les faunes africaines contemporaines: systématique, phylogénie et paléobiogéographie''. Ph.D. thesis. 652 pp. Muséum National d’Histoire Naturelle de Paris, Paris.</ref><ref>{{cite journal | last1 = Delfino | first1 = M. | last2 = Piras | first2 = P. | last3 = Smith | first3 = T. | year = 2005 | title = Anatomy and phylogeny of the gavialoid crocodylian Eosuchus lerichei from the Paleocene of Europe | journal = Acta Palaeontologica Polonica | volume = 50 | pages = 565–580 }}</ref><ref name="Brochu, C. A. 2007">{{cite journal | doi = 10.1111/j.1475-4983.2007.00679.x | last1 = Brochu | first1 = C. A. | year = 2007 | title = Systematics and taxonomy of Eocene tomistomine crocodylians from Britain and Northern Europe | journal = [[Palaeontology (journal)|Palaeontology]] | volume = 50 | issue = 4| pages = 917–928 | doi-access = free | bibcode = 2007Palgy..50..917B }}</ref> and is the oldest known tomistomine to date. [[Fossil]]s have been found from [[Belgium]] and the [[United Kingdom]].<ref name=Swinton1937>Swinton, W. E. (1937). [http://biblio.naturalsciences.be/rbins-publications/memoires/80-1937/vol-80-024e75x-text.pdf The Crocodile of Maransart (Dollosuchus dixoni [Owen]).] ''Mémoire'' 80: 3-46</ref> It had large supratemporal fenestrae in relation to its orbits, similar to ''Kentisuchus'' and ''[[Thecachampsa]]''.<ref name="Piras, P. 2007">{{cite journal | last1 = Piras | first1 = P. | last2 = Delfino | first2 = M. | last3 = Del Favero | first3 = L. | last4 = Kotsakis | first4 = T. | year = 2007 | title = Phylogenetic position of the crocodylian ''Megadontosuchus arduini'' and tomistomine palaeobiogeography | journal = Acta Palaeontologica Polonica | volume = 52 | issue = 2| pages = 315–328 }}</ref>

''Dollosuchus'' was originally described on the basis of numerous [[Mandible|mandibular]] fragments found from the Early to Middle [[Eocene]] [[Bracklesham Group|Bracklesham Beds Formation]] in the United Kingdom. The material cannot be distinguished from other related longirostrine, or long-snouted, [[crocodilia]]ns. A nearly complete skeleton from Belgium (IRScNB 482) discovered in 1915 and described by Swinton in 1937,<ref name=Swinton1937 /> and referred to ''Dollosuchus'', formed the basis of the new taxon ''[[Dollosuchoides densmorei]]''.<ref name="Brochu, C. A. 2007"/> The [[holotype]], '''BMNH 26125''' and '''BMNH 26126''', is now on display at the [[:nl:De Wereld van Kina|World of Kina]] [[museum]] in [[Ghent]], [[Belgium]].

==Species==
The [[type species]] of ''Dollosuchus'' is ''D. dixoni''. Many other species that once belonged to other genera have been proposed as members of the genus, but little work has been published to support these claims. ''[[Charactosuchus|Charactosuchus kugleri]]'', another Eocene crocodilian, has been suggested to be [[Synonym (taxonomy)|synonymous]] with ''Dollosuchus'',<ref>{{cite journal | last1 = Domning | first1 = D. P. | last2 = Clark | first2 = J. M. | year = 1993 | title = Jamaican Tertiary marine Vertebrata. ''In'': R.M. Wright and E. Robinson (eds.) | journal = Biostratigraphy of Jamaica. Geological Society of America Memoir | volume = 182 | pages = 413–415 | doi=10.1130/mem182-p413}}</ref> but this is no longer likely because ''C. kugleri'' is now thought to be a member of the [[Family (biology)|family]] [[Crocodylidae]], and thus closer related to modern [[crocodile]]s than to [[gharial]]s. It has been suggested that ''Kentisuchus spenceri'', ''[[Megadontosuchus|Megadontosuchus arduini]]'', and ''Dollosuchus dixoni'' are [[cogeneric]]. If this is the case, the genus name ''Dollosuchus'' would be adopted for all three species, as the name has seniority over the other two.<ref>Brochu, C. A. (1997). Phylogenetic Systematics and Taxonomy of Crocodylia. Unpublished Ph.D. thesis. 467 pp. University of Texas, Austin</ref><ref>Brochu, C. A. (2001). Congruence between physiology, phylogenetics, and the fossil record on crocodylian historical biogeography. ''In'': G. Grigg, F. Seebacher, and C.E. Franklin (eds.), ''Crocodilian Biology and Evolution'', 9–28. Surrey Beatty and Sons, Sydney</ref>

==References==
{{Reflist}}

==External links==
*[https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=38443 ''Dollosuchus''] in the [[Paleobiology Database]]

{{Extinct Crocodilia|T.}}
{{Taxonbar|from=Q648734|from2=Q41215248}}

[[Category:Gavialidae]]
[[Category:Eocene crocodylomorphs]]
[[Category:Eocene reptiles of Europe]]
[[Category:Prehistoric pseudosuchian genera]]
[[Category:Taxa named by Richard Owen]]

Dollosuchus - Revision history

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