Cheirurina is a suborder of the trilobite order Phacopida. Known representatives range from the uppermost Cambrian (upper Furongian) to the end of the Middle Devonian (Givetian).[1][2] Cheirurina is made up of a morphologically diverse group of related families.

References

  1. ^ a b Sam Gon III. "Order Phacopida". Retrieved November 13, 2010.
  2. ^ J.M. Adrain (2014). "20. A synopsis of Ordovician trilobite distribution and diversity". In D.A.T. Harper; T. Servais (eds.). Early Palaeozoic Biogeography and Palaeogeography. Memoirs of the Geological Society of London. Vol. 38. Geological Society of London. p. 490. ISBN 978-1862393738.


Allikas: http://en.wikipedia.org/wiki/Cheirurina
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