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玛姆象属是长鼻类玛姆象科这一重要类群的最终成员。虽然这一属在上新世的欧亚大陆和更新世的北美大陆广泛分布,它早期的进化历史却鲜为人知。报道了中国北方上中新统发现的斜脊玛姆象(相似种)(Mammut cf.M.obliquelophus)的新材料,包括一个几乎完整的幼年头骨,这些材料显示了玛姆象科的许多原始特征,因此很好地解释了玛姆象属形态特征的形成过程。斜脊玛姆象(相似种)具有强烈向两侧扩展的枕部,在门齿窝的基部具有收缩,这些特征与莫罗托始轭齿象(Eozygodon morotoensis)和广河豕脊齿象(Choerolophodon guangheensis)均具有相似性,后两者分别为玛姆象科与豕脊齿象科的早期代表。因此,玛姆象科与豕脊齿象科(Choerolophodontidae)具有近的亲缘关系,二者同位于象形类(Elephantimorpha)系统发育中的基部。支序分析支持了这一结论。
Mammunekus belongs to the ultimate member of this important group of proboscis, Mammography. Although widely distributed in the Pliocene Eurasia and the Pleistocene North American continent, its early evolutionary history is little known. Reported new material from the Mammut cf.M. obliquelophus found in the Upper Miocene in northern China, including a nearly complete juvenile skull showing many of the primitive Features, so a good explanation of the formation of Mammunea morphological characteristics of the formation process. The oblique ridges (similar species) have occipital extensions that extend strongly to both sides and have constriction at the base of the incisors, which are similar to those of the Eozygodon morotoensis and Choerolophodon guangheensis) are similar, the latter two were the early representatives of Mammids and ridges of spine teeth. Therefore, the branch of Mammids is closely related to Choerolophodontidae, both of which are located at the base of the development of the system of Elephantimorpha. The support of this conclusion is supported by the analysis of the order.