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首页> 外文期刊>Alcheringa: An Australasian Journal of Palaeontology >Descriptions of koala fossils from the Miocene of Riversleigh, northwestern Queensland and implications for Litokoala (Marsupialia, Phascolarctidae)
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Descriptions of koala fossils from the Miocene of Riversleigh, northwestern Queensland and implications for Litokoala (Marsupialia, Phascolarctidae)

机译:昆士兰州西北部里弗斯利的中新世考拉化石的描述及其对Litokoala(Marsupialia,Phascolarctidae)的影响

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摘要

Litokoala is revised on the basis of new material from the early to middle Miocene deposits of Riversleigh. A new species of Litokoala is described from the System B Outasitc Local Fauna. Litokoala guryjolmsloni sp. nov. possesses a unique combination of both plesiomorphic and apomorphic dental features, making its phylogenetic position within Litokoala difficult to interpret. In some aspects of dental morphology, L. garyjohnstoni is convergent on the early Miocene phascolarctid Nimiokoala greystanesi Black & Archer, 1997. The dentition of a partial skull of Litokoala from Jims Carousel Site, System C is also described. On the basis of this dentition, it is suggested that the morphological variation between L. kutjamarpemis Stirton, 1967 and L. kanunkaensis Springer, 1987 does not warrant specific distinction, the latter being the junior synonym.
机译:Litokoala是在Riversleigh中新世早期到中期的新材料基础上进行修订的。系统B Outasitc本地动物区系描述了一个新的Litokoala物种。 Litokoala guryjolmsloni sp。十一月拥有多形和异形两种牙齿特征的独特组合,使其在Litokoala中的系统发育位置难以解释。在牙齿形态的某些方面,L。garyjohnstoni收敛于早期中新世的sco齿Nimiokoala greystanesi Black&Archer,1997年。还描述了系统C的Jims Carousel站点的Litokoala的部分头骨的齿列。根据这种牙列,建议L. kutjamarpemis Stirton(1967)和L. kanunkaensis Springer,1987之间的形态学变异不需要特别的区分,后者是初级的同义词。

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