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2023-07-14T15:24:54Z

Not this genus.

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{{Short description|Extinct genus of reptiles}}
{{Automatic taxobox
| fossil_range = [[Late Jurassic]], {{fossil_range|160|157.3}}
| image =
| image_caption =
| taxon = Aggiosaurus
| authority = Ambayrac, [[1913 in paleontology|1913]]
| type_species = {{extinct}}'''''Aggiosaurus nicaeensis'''''
| type_species_authority = Ambayrac, 1913
| synonyms =
*''[[Megalosaurus]] nicaeensis'' <small>(Ambayrac, 1913)</small>
*''[[Dakosaurus]] nicaeensis'' <small>(Ambayrac, 1913)</small>
}}

'''''Aggiosaurus''''' is an [[extinct]] [[genus]] of [[geosaurine]] [[metriorhynchid]] [[crocodyliform]] known from the [[Late Jurassic]] (late [[Oxfordian (stage)|Oxfordian]] stage) of [[Nice, France|Nice]], southeastern [[France]]. It contains a single species, '''''Aggiosaurus nicaeensis''''',<ref name=MTY&MBdA09>{{Cite journal | last1 = Young | first1 = M. T. | last2 = De Andrade | first2 = M. B. | doi = 10.1111/j.1096-3642.2009.00536.x | title = What is ''Geosaurus''? Redescription of ''Geosaurus giganteus'' (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany | journal = Zoological Journal of the Linnean Society | volume = 157 | issue = 3 | pages = 551 | year = 2009 | doi-access = free }}</ref><ref name=Youngetal12>{{Cite journal | last1 = Young | first1 = M. T. | last2 = Brusatte | first2 = S. L. | last3 = De Andrade | first3 = M. B. | last4 = Desojo | first4 = J. B. | last5 = Beatty | first5 = B. L. | last6 = Steel | first6 = L. | last7 = Fernández | first7 = M. S. | last8 = Sakamoto | first8 = M. | last9 = Ruiz-Omeñaca | first9 = J. I. | last10 = Schoch | first10 = R. R. | editor1-last = Butler | editor1-first = Richard J | title = The Cranial Osteology and Feeding Ecology of the Metriorhynchid Crocodylomorph Genera ''Dakosaurus'' and ''Plesiosuchus'' from the Late Jurassic of Europe | doi = 10.1371/journal.pone.0044985 | journal = PLOS ONE | volume = 7 | issue = 9 | pages = e44985 | year = 2012 | pmid = 23028723| pmc =3445579 | bibcode = 2012PLoSO...744985Y | doi-access = free }}</ref> which was named by H. Ambayrac in [[1913 in paleontology|1913]].<ref name=Ambayarac1913>H. Ambayrac. (1913). Découverte d'une mâchoire de reptile jurassique [Discovery of a jaw from a Jurassic reptile]. ''Bulletin Mensuel des Naturalistes des Alpes-Maritimes'' 15:65-68</ref>

==History of discovery==
''Aggiosaurus'' is known only from its [[holotype]], an unnumbered, poorly preserved [[upper jaw]] collected by H. Ambayrac in 1912,<ref name=Maury1915> Maury, E. (1915). New observations on the Jurassic reptile localities on the road from Cap d'Ail to La Turbie. ''Riviera Scientifique. Bulletin de l'Association des Naturalistes de Nice et des Alpes-Maritimes'' 2(1):4-6</ref> preserved in [[limestone]] which is now housed in the [[Muséum d'histoire naturelle de Nice]]. It was collected from the late [[Oxfordian (stage)|Oxfordian]]-aged locality of Cap d’Aggio-La Turbie, in [[Nice, France|Nice]], [[France]].<ref name=Maury1915 /> It was initially described as a [[megalosaurid]] [[dinosaur]] by Ambayrac (1913).<ref name=Ambayarac1913 /> Later, Buffetaut (1982) demonstrated that it was in fact a [[metriorhynchid]], closely related to, if not a member of ''[[Dakosaurus]]''.<ref name="Buffetaut, 1982">Buffetaut E. (1982). ''Aggiosaurus nicaeensis'' Ambayrac, 1913, from the Upper Jurassic of south-eastern France: A marine crocodilian, not a dinosaur. ''Neues Jahrbuch für Geologie und Paläontologie, Monatshefte'' (8): 469-475.</ref> As the type specimen is poorly preserved it is sometimes considered to be a [[nomen dubium]]. Young & Andrade (2009) suggested that ''Aggiosaurus'' is a [[junior synonym]] of ''[[Dakosaurus]]'', and that ''A. nicaeensis'' is referrable to ''Dakosaurus'' as a distinct species provisionally. They based this referral on its unusually large dentition (apicobasal length in excess of {{convert|6|cm|in|1|disp=or}}) that thought to be unique to species of ''Dakosaurus'' among all other [[thalattosuchia]]ns.<ref name=MTY&MBdA09/> ''Aggiosaurus'' actually has the largest dentition of any known metriorhynchid (up to {{convert|12|cm|in|1|abbr=on}} in apicobasal length), although further [[phylogenetic]] analyses found that large robust teeth present also in other geosaurins, such as ''[[Torvoneustes]]''. Young ''et al.'' (2012) resurrected the genus name ''[[Plesiosuchus]]'' for ''D. manselii'' (which also present this trait) as their phylogenetic analysis found a [[paraphyletic]] ''Dakosaurus'' and suggested more [[basal (phylogenetics)|basal]] position for it within [[Geosaurini]] than previously thought. As the presence of unusually large dentition (apicobasal length in excess of {{convert|6|cm|in|1|abbr=on}}) was considered to be [[homoplasy|homoplastic]] among geosaurins, ''Aggiosaurus'' cannot be considered a junior synonym of either ''Dakosaurus'' or ''Plesiosuchus''.<ref name=Youngetal12/>

==Etymology==
''Aggiosaurus'' was first described and named by H. Ambayrac in [[1913 in paleontology|1913]],<ref name=Ambayarac1913 /> and the type species is ''Aggiosaurus nicaeensis''. The [[name of a biological genus|generic name]] is derived from the name of its type locality, Cap d'Aggio-La Turbie, and from "''{{lang|grc-Latn|sauros}}"'' ({{lang|grc|σαῦρος}}), meaning "lizard" in [[Ancient Greek]]. The [[specific name (zoology)|specific name]] honors [[Nice, France]], in which it was discovered.<ref name=MTY&MBdA09/>

==References==
{{Reflist}}
{{Portal|Paleontology}}

{{Thalattosuchia}}
{{Taxonbar|from=Q2711540}}

[[Category:Fossils of France]]
[[Category:Fossil taxa described in 1913]]
[[Category:Late Jurassic crocodylomorphs]]
[[Category:Prehistoric marine crocodylomorphs]]
[[Category:Prehistoric pseudosuchian genera]]

Aggiosaurus - Revision history

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