Cretaceous-vicariance

Guides

• Cymbiodyta

  Cymbiodyta is a genus of water scavenger beetles (Hydrophilidae: Enochrinae) comprising 31 described species. The genus exhibits a strikingly disjunct distribution: 28 species occur in the Americas, while only three species inhabit the Palearctic region. A fossil species from Eocene Baltic amber (C. samueli) confirms the genus has persisted in Europe since at least the Eocene, supporting biogeographic reconstructions indicating an ancient Euro-American distribution dating to the Late Cretaceous when land connections existed between North America and Europe.

  HydrophilidaeEnochrinaewater-scavenger-beetlespalearctic-relictEocene-fossilBaltic-amberbiogeographydisjunct-distributionNorth-AmericaEuropeCretaceous-vicarianceancient-lineage