Revision of Mesozoic decapod crustaceans from Madagascar

Geodiversitas

Giovanni Pasini¹  Alessandro Garassino¹  Sylvain Charbonnier¹ 

关键词: Crustacea;    Decapoda;    Macrura;    Brachyura;    Axiidea;    Jurassic;    Cretaceous;    Madagascar;    Crustacea;    Decapoda;    Macrura;    Brachyura;    Axiidea;    Jurassique;    Crétacé;    Madagascar;   

DOI  :  10.5252/g2012n2a5

学科分类：生物科学（综合）

来源: Museum National d Histoire Naturelle

【 摘 要 】

DecapodcrustaceansfromtheMesozoicofMadagascarhavebeenstudiedbyanumberofauthorsduringthelastcentury.OneofthelargestsetsofspecimenswascollectedbytheFrenchGeneralMauriceCollignonbetween1930and1950;thiswassubsequentlystudiedbySecrétan(1964)whodescribednumerousspeciesofmacrurans,brachyurans,andaxiideans.ThesecrustaceansoriginatefromtheUpperJurassicandtheUpperCretaceousoftheMahajangaBasin(NWMadagascar)and,especially,fromtheMorondavaBasin(central-SWMadagascar).Thepurposeofthepresentstudyistwofold:tofurnishanupdateofthestratigraphyandgeologyofthestudiedareasand,aboveall,torevisetheSecrétan'sspecies,employingcurrentsystematicnomenclature,supplyingforeachdetailedgeographicandstratigraphicdatasincesuchwereeithercursoryorincompleteinpreviouspapers.Thepresentrevisionconsiders13speciesrecordedbySecrétanasvalid,namely:EnoploclytiacollignoniSecrétan,1964,ErymagranuliferumSecrétan,1964,Pustulinaspinulata(Secrétan,1964)(allErymidaeVanStraelen,1925);Hoplopariacollignoni(VanStraelen,1949),H.pusillaSecrétan,1964(bothNephropidaeDana,1852sensuTshudyamp;Babcock1997);CtenochelesmadagascariensisSecrétan,1964(CtenochelidaeManningamp;Felder,1991);SchlueteriamenabensisSecrétan,1964(AxiidaeHuxley,1879);LinuparusbererensisSecrétan,1964(PalinuridaeLatreille,1802);DromiopsispulchellaSecrétan,1964(DynomenidaeOrtmann,1892);Caloxanthussimplex(Secrétan,1964)(EtyidaeGuinotamp;Tavares,2001);“Xanthosia”robertsiSecrétan,1982(nomennovumproXanthosiaelegansSecrétan,1964,nonRoberts,1962),TitanocarcinusmamillatusSecrétan,1964(bothXanthoideaincertaesedis);andSecretanellaarcuata(Secrétan,1964)(indeterminatefamily).ThethreespeciesdescribedbySecrétan(1964)asbelongingtotheraninidgenusNotopocorystesMcCoy,1849,N.bituberculatus,N.australisandN.denisaewillberevisedinaforthcomingpaper.Ourcomparativestudieshavealsorevealedanumberofsynonymoustaxa,asfollows:ErymagranuliferumSecrétan,1964(juniorsynonym:E.madagascariensisSecrétan,1964);LinuparusbererensisSecrétan,1964(juniorsynonym:L.bererensismultispinosusSecrétan,1964);Hoplopariacollignoni(VanStraelen,1949)(juniorsynonym:H.intermediaSecrétan,1964andH.sculptaSecrétan,1964);SchlueteriamenabensisSecrétan,1964(juniorsynonym:S.tuberculosaSecrétan,1964).Lastly,wehavedoubtsaboutthesystematicvalidityofEnoploclytiaarmataSecrétan,1964,Erymaaustrale(Secrétan,1964),andColeiaincertaSecrétan,1964,becauseoftheabsenceofmaindiagnosticfeatures,usefulfortheirsystematicascription.

【 授权许可】

Unknown