, Volume 48, Issue 4, pp 408–410 | Cite as

Bdelloid rotifers in Dominican amber: Evidence for parthenogenetic continuity

  • G. O. PoinarJr
  • C. Ricci
Research Articles


Recently discovered representatives of the Class Bdelloidea from Tertiary amber from the Dominican Republic represent the oldest known fossils of the Phylum Rotifera. Assuming that the fossil bdelloids had a similar mode of reproduction as present day members of the Class (apomictic thelytoky), then contrary to current thought, some lines of parthenogenetic organisms are not doomed to an early extinction and have evolved built-in mechanisms for genetic diversity.

Key words

Fossil rotifers Bdelloidea Tertiary amber Dominican Republic 


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Copyright information

© Birkhäuser Verlag 1992

Authors and Affiliations

  • G. O. PoinarJr
    • 1
  • C. Ricci
    • 2
  1. 1.Department of Entomological SciencesUniversity of CaliforniaBerkeleyUSA
  2. 2.Dipartimento di Biologia AnimaleUniversità di TorinoTorino(Italy)

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