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Dollosuchus
''Dollosuchus'' is an extinct tomistomine. It is a basal form possibly related to ''Kentisuchus'', according to several phylogenetic analyses that have been conducted in recent years,〔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.〕 and is the oldest known tomistomine to date. Fossils have been found from Belgium and the United Kingdom. It had large supratemporal fenestrae in relation to its orbits, similar to ''Kentisuchus'' and ''Thecachampsa''.
''Dollosuchus'' was originally described on the basis of numerous mandibular fragments found from the Early to Middle Eocene Bracklesham Beds in the United Kingdom. The material cannot be distinguished from other related longirostrine, or long-snouted, crocodilians. A nearly complete skeleton from Belgium (IRScNB 482) described by Swinton, and referred to Dollosuchus, formed the basis of the new taxon ''Dollosuchoides densmorei''.〔
==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 kugleri'', another Eocene crocodilian, has been suggested to be synonymous with ''Dollosuchus'', but this is no longer likely because ''C. kugleri'' is now thought to be a member of the family Crocodylidae, and thus closer related to modern crocodiles than to gharials. It has been suggested that ''Kentisuchus spenceri'', ''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.〔Brochu, C. A. (1997). Phylogenetic Systematics and Taxonomy of Crocodylia. Unpublished Ph.D. thesis. 467 pp. University of Texas, Austin〕〔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〕
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