{"refrec":{"BRefID":12785,"RR":"<b>Hessler, R.R.</b> (1983). A defence of the caridoid facies; wherein the early evolution of the Eumalacostraca is discussed, <b><i>in</i></b>: Schram, F.R. (Ed.) <i>Crustacean phylogeny. Crustacean Issues,</i> 1: pp. 145-164","BEntID":12785,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Schram, F.R. (Ed.) <i>Crustacean phylogeny. Crustacean Issues = Advances in Crustacean Research,</i> 1: pp. 145-164","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hessler, R.R.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hessler, R.R.","Englishabstract":"The caridoid facies is a suite of features that has long been regarded monophyletic and central to eumalacostracan phylogeny. The present defense of this position considers several recent objections to the idea. Much of the caridoid facies is plesiomorphic and cannot be used to argue monophyly. The caridoid apomorphies are found in all eumalacostracans and occur with the first appearance of this taxon in the fossil record. Imperfectly developed abdominal musculature of hoplocarids reflects the early appearance of this taxon in eumalacostracan evolution. Arguments that hoplocarids evolved independently of other eumalacostracans are rejected. The claim that the carapace is polyphyletic is also considered unsubstantiated. In total, the distribution of caridoid features among taxa and in the fossil record strongly suggests the facies evolved once, concurrent with the advent of the Eumalacostraca. The caridoid facies was only part of the cause for eumalacostracan success; the loss of primitive thoracopodan feeding with the appearance of the thoracic stenopodium is likely to have been a more significant event in the genesis of the Eumalacostraca, but the adaptive forces that stimulated the evolution of the two systems may well have intertwined.","AbstractOtherLang":null,"BibLvlCode":"AMS","StandardTitle":"A defence of the caridoid facies; wherein the early evolution of the Eumalacostraca is discussed","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-20 01:30:12.676085","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1983,"MonPub":null,"DateUpdate":"2001-07-04","DateCreate":"2001-07-04","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":12785,"PubliDate":1983,"Pagination":"145-164","XtraPublOfAnaID":null,"ISBN":"90-6191-231-8","Volume":"1","Issue":null,"BRefMon":12759,"BRefMonRR":"<b>Schram, F.R. 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