Cheirurina

Cheirurina; Temporal range: Furongian to Givetian PreꞒ Ꞓ O S D C P T J K Pg N [1]
	Ceraurus pleurexanthemus (Cheiruridae)
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Trilobita
Order:	†Phacopida
Suborder:	†Cheirurina
Families
	†Cheiruridae; †Encrinuridae; †Staurocephalidae; †Pilekiidae; †Pliomeridae;

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).[2][3] Cheirurina is made up of a morphologically diverse group of related families.

References

Sam Gon III. "Order Phacopida". Retrieved November 13, 2010.
Sam Gon III. "Order Phacopida". Retrieved November 13, 2010.
J.M. Adrian (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. 38. Geological Society of London. p. 490. ISBN 978-1862393738.

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[1] Sam Gon III. "Order Phacopida". Retrieved November 13, 2010.

[2] Sam Gon III. "Order Phacopida". Retrieved November 13, 2010.

[HarperServais-3] J.M. Adrian (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. 38. Geological Society of London. p. 490. ISBN 978-1862393738.