The vertebrate fossil record from the Balearic Islands(western Mediterranean)has improved considerably over the past decade,especially in Mallorca and Menorca.In Menorca,the Pliocene terrestrial fauna was updated by t...The vertebrate fossil record from the Balearic Islands(western Mediterranean)has improved considerably over the past decade,especially in Mallorca and Menorca.In Menorca,the Pliocene terrestrial fauna was updated by the discovery and description of the large-sized leporid Nuralagus,several reptiles and an amphibian.In Mal-lorca,paleontological exploration yielded 2 deposits with a Late Miocene/Early Pliocene chronology,Calóden Rafelino(CdR)and Na Burguesa-1(NB-1).So far,4 new mammalian taxa and 2 new reptiles have been iden-tified for the CdR deposit,whereas the faunal assemblage from the recently discovered deposit(Apr 2012)of NB-1 is currently composed of,at least,6 terrestrial mammals,8 reptiles and an amphibian.Its faunal composi-tion and some primitive characteristics of the obtained taxa suggest that the chronology of this deposit is slight-ly earlier than the CdR.The terrestrial vertebrates recorded in these 2 Mallorcan deposits are changing the view of the paleofaunal assemblage previously known for the Plio-Pleistocene of the island.Morphological charac-teristics displayed by some of the taxa suggest that these faunas would be at the beginning of an isolated evo-lution.In this paper we present a preliminary report on the fossils recovered from the NB-1 deposit,as well as some unpublished data from CdR,and we analyze the whole fauna from both Mallorcan deposits,focusing on taxonomical and paleobiogeographical aspects.展开更多
根据头骨上间顶骨存在与否、枕盾形状和位置、臼齿带牙根与否以及带牙根臼齿的高冠程度等,将Myospalacinae分成2族9属。记述了甘肃秦安董湾剖面中的3种原鼢鼠:Prosiphneus licenti Teilhard de Chardin,1926,P.tianzuensis(Zheng&Li...根据头骨上间顶骨存在与否、枕盾形状和位置、臼齿带牙根与否以及带牙根臼齿的高冠程度等,将Myospalacinae分成2族9属。记述了甘肃秦安董湾剖面中的3种原鼢鼠:Prosiphneus licenti Teilhard de Chardin,1926,P.tianzuensis(Zheng&Li,1982)和P.eriksoni(Schlosser,1924);1种上新鼢鼠:Pliosiphneus cf.Pl.lyratus(Teihard de Chardin,1942);3种日进鼢鼠:Chardina sinensis(Teilhard de Chardin&Young,1931),C.gansuensis n.sp.和C.truncatus(Teilhard de Chardin,1942);3种中鼢鼠:Mesosiphneus primitivus sp.nov.,M.praetingi(Teilhard de Chardin,1942)和M.intermedius(Teilhard de Chardin&Young,1931)。修订了原鼢鼠属(Prosiphneus)、上新鼢鼠属(Pliosiphneus)、日进鼢鼠属(Chardina)和中鼢鼠属(Mesosiphneus)的属征。根据古地磁年代记录,探讨了Pr.eriksoni→Pliosiphneus cf.Pl.lyratus,Pr.eriksoni→C.sinensis,C.gansuensis→M.primitivus之间的进化关系。展开更多
基金This paper is included in the projects CGL2012-38087,CGL2009-12703-C03-03,EHU 10/32(Universidad del País Vasco UPV/EHU)and CGL2012-38358.
文摘The vertebrate fossil record from the Balearic Islands(western Mediterranean)has improved considerably over the past decade,especially in Mallorca and Menorca.In Menorca,the Pliocene terrestrial fauna was updated by the discovery and description of the large-sized leporid Nuralagus,several reptiles and an amphibian.In Mal-lorca,paleontological exploration yielded 2 deposits with a Late Miocene/Early Pliocene chronology,Calóden Rafelino(CdR)and Na Burguesa-1(NB-1).So far,4 new mammalian taxa and 2 new reptiles have been iden-tified for the CdR deposit,whereas the faunal assemblage from the recently discovered deposit(Apr 2012)of NB-1 is currently composed of,at least,6 terrestrial mammals,8 reptiles and an amphibian.Its faunal composi-tion and some primitive characteristics of the obtained taxa suggest that the chronology of this deposit is slight-ly earlier than the CdR.The terrestrial vertebrates recorded in these 2 Mallorcan deposits are changing the view of the paleofaunal assemblage previously known for the Plio-Pleistocene of the island.Morphological charac-teristics displayed by some of the taxa suggest that these faunas would be at the beginning of an isolated evo-lution.In this paper we present a preliminary report on the fossils recovered from the NB-1 deposit,as well as some unpublished data from CdR,and we analyze the whole fauna from both Mallorcan deposits,focusing on taxonomical and paleobiogeographical aspects.
文摘根据头骨上间顶骨存在与否、枕盾形状和位置、臼齿带牙根与否以及带牙根臼齿的高冠程度等,将Myospalacinae分成2族9属。记述了甘肃秦安董湾剖面中的3种原鼢鼠:Prosiphneus licenti Teilhard de Chardin,1926,P.tianzuensis(Zheng&Li,1982)和P.eriksoni(Schlosser,1924);1种上新鼢鼠:Pliosiphneus cf.Pl.lyratus(Teihard de Chardin,1942);3种日进鼢鼠:Chardina sinensis(Teilhard de Chardin&Young,1931),C.gansuensis n.sp.和C.truncatus(Teilhard de Chardin,1942);3种中鼢鼠:Mesosiphneus primitivus sp.nov.,M.praetingi(Teilhard de Chardin,1942)和M.intermedius(Teilhard de Chardin&Young,1931)。修订了原鼢鼠属(Prosiphneus)、上新鼢鼠属(Pliosiphneus)、日进鼢鼠属(Chardina)和中鼢鼠属(Mesosiphneus)的属征。根据古地磁年代记录,探讨了Pr.eriksoni→Pliosiphneus cf.Pl.lyratus,Pr.eriksoni→C.sinensis,C.gansuensis→M.primitivus之间的进化关系。
