Description of the first flightless platynine ground beetle preserved in Baltic amber (Coleoptera: Carabidae)
Description of the first flightless platynine ground beetle preserved in Baltic amber (Coleoptera: Carabidae)
复制标题
波罗的海琥珀中保存的第一种不会飞的地甲虫的描述（鞘翅目：步甲科）
DOI：
10.11646/zootaxa.4318.1.4
复制
发表时间：
2017
期刊：
影响因子：
0.9
通讯作者：
Göpel
中科院分区：
文献类型：
--
作者：
Schmidt;Göpel
种类繁多的地面甲虫部落 Platynini 的物种分布在除南极洲以外的所有大陆上。人们很早就认识到白桦甲虫保存在始新世波罗的海琥珀中。然而，迄今为止，只有一个始新世化石被描述到物种水平。在本文中，描述了一种仅被称为琥珀包裹体化石的 Platynini 新物种，并使用光学显微镜和显微 X 射线计算机断层扫描对其进行了成像。由于该物种不能归入任何最近描述的属，因此单型属 Praeanchodemus gen. n.，模式种 P. punctaticeps sp。 n.，竖立起来。从外部形态来看，有一些证据表明 Praeanchodemus 属。名词是由最近的Parachodemus属、Rhadine属和Tanystoma属组成的谱系的一部分。然而，由于没有发现一些共源性，化石分类单元的真正关系仍然没有意义。
Species of the megadiverse ground beetle tribe Platynini occur on all continents except Antarctica. It has been long recognized that platynine beetles were preserved in the Eocene Baltic amber. However, thus far only a single Eocene fossil has been described to the species level. In the present paper, a new species of Platynini known only as an amber inclusion fossil is described and imaged using light microscopy and micro X-ray computed tomography. Since this species cannot be assigned to any of the recently described genera, the monotypic genus Praeanchodemus gen. n., with the type species P. punctaticeps sp. n., is erected. There is some evidence from external morphology that Praeanchodemus gen. n. is part of a lineage comprising the recent genera Paranchodemus, Rhadine, and Tanystoma. However, since some synapomorphies were not found, the true relationships of the fossil taxon remain moot.