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Experientia

, Volume 49, Issue 4, pp 354–357 | Cite as

Fossil habrotrochid rotifers in Dominican amber

  • B. M. Waggoner
  • G. O. PoinarJr
Experimental World Research Articles

Abstract

Flask-shaped microfossils are reported from bracts of a moss in Eocene-Oligocene amber from the northern Dominican Republic. These microfossils are identical with the thecae of certain living moss-dwelling rotifers in the genusHabrotrocha (Bdelloidea), which have previously been reported as fossils only from Holocene peat. What may be an egg and a rotifer body fossil are associated with these thecae and further support the identification of these fossils withHabrotrocha; the fossils are almost identical to extantH. angusticollis. The parthenogenetic bdelloid rotifers have a longer evolutionary history than was previously thought; habrotrochid rotifers seem to have persisted for 35 million years with very little change in morphology or ecological role.

Key words

Habrotrochidae Bdelloidea fossil rotifers Dominican Republic Eocene-Oligocene 

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Copyright information

© Birkhäuser Verlag Basel 1993

Authors and Affiliations

  • B. M. Waggoner
    • 1
  • G. O. PoinarJr
    • 2
  1. 1.Museum of Paleontology, Department of Integrative BiologyUniversity of CaliforniaBerkeleyUSA
  2. 2.Department of EntomologyUniversity of CaliforniaBerkeleyUSA

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