RESUMEN

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.

Asunto(s)

Ámbar , Artrópodos , Masculino , Animales , Femenino , Microtomografía por Rayos X , Fósiles , Artrópodos/anatomía & histología , Microscopía Confocal