Conchostracans
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Conchostracans or clam shrimps are a family of bivalved branchiopod crustacea bearing passing resemblance but no relation to bivalved molluscs.[1] They are extant, and known from the fossil record, from at least the Devonian period and perhaps before.[2]

References

  1. ^ Webb, J. (1979). "A reappraisal of the palaeoecology of conchostracans (Crustacea: Branchiopoda)" 158 (2): 259-275. 
  2. ^ Woolfe, K.J. (1990). "Trace fossils as paleoenvironmental indicators in the Taylor Group (Devonian) of Antarctica". Palaeogeography, Palaeoclimatology, Palaeoecology 80: 301-310. 
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