缅甸白垩纪中期琥珀中的 Polydesmidae 科（多足纲，倍足纲，多足目）一新种。

A new species of Polydesmidae (Myriapoda, Diplopoda, Polydesmida) from the mid-Cretaceous Burmese amber.

机构信息

State Key Laboratory of Palaeobiology and Stratigraphy; Center for Excellence in Life and Paleoenvironment; Nanjing Institute of Geology and Palaeontology; Chinese Academy of Sciences; Nanjing 210008; China.

出版信息

Zootaxa. 2023 Dec 29;5396(1):112-123. doi: 10.11646/zootaxa.5396.1.16.

DOI:10.11646/zootaxa.5396.1.16

PMID:38220976

Abstract

A new species of the flat-backed millipede family Polydesmidae, Propolydesmus cretaceus sp. nov., is described from the mid-Cretaceous Burmese amber. Detailed morphological characters are provided on the basis of 3 well-preserved adults (2 males and 1 females), 2 female subadults, and 14 additional specimens, using confocal laser scanning microscopy (CLSM) and X-ray micro-computed tomography (CT) with computer-aided 3D-reconstructions. The new species can be placed in the extant genus Propolydesmus. It majorly differs from other congeners due to the stronger gonopod acropodite and the presence of a bipartite gonopod exomerite.

摘要

一种新的扁形蜈蚣科（Polydesmidae）平甲虫，Propolydesmus cretaceus sp. nov.，描述自中生代缅甸琥珀。基于 3 只保存完好的成虫（2 雄 1 雌）、2 只亚成体雌虫和 14 个附加标本，使用共聚焦激光扫描显微镜（CLSM）和 X 射线微计算机断层扫描（CT），结合计算机辅助的 3D 重建，提供了详细的形态特征。新种可以归入现存的 Propolydesmus 属。它主要与其他同属种不同，因为其生殖肢跗节较强，生殖肢外肢有两部分。