Hurdiidae

Hurdiidae; Temporal range: Cambrian Stage 4–Lower Devonian PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Dinocaridida
Order:	†Radiodonta
Suborder:	†Anomalocarida
Family:	†Hurdiidae; Vinther et al., 2014

Hurdiidae is a family of radiodonts, an extinct group of arthropods. It is the most long-lived radiodont clade, lasting from the Cambrian period to the Devonian period.[1]

Definition

Hurdiidae is the most inclusive clade containing Hurdia victoria but not Amplectobelua symbrachiata, Anomalocaris canadensis, or Tamisiocaris borealis.[1]

Phylogeny

The phylogeny of hurdiids, accompanying the description of the hurdiid Aegirocassis benmoulae, is as follows:[2]

Hurdiidae

Fezouata hurdiid appendage

Schinderhannes bartelsi

Peytoia nathorsti

cf. Peytoia Balang

Aegirocassis benmoulae

	Hurdia victoria

	Hurdia cf. victoria

Stanleycaris hirpex

	Hurdia sp. Utah

	Hurdia sp. Burgess

References

Vinther, Jakob; Stein, Martin; Longrich, Nicholas R.; Harper, David A. T. (2014). "A suspension-feeding anomalocarid from the Early Cambrian" (PDF). Nature. 507 (7493): 496–499. doi:10.1038/nature13010. PMID 24670770.
Van Roy, Peter; Daley, Allison C.; Briggs, Derek E. G. (2015). "Anomalocaridid trunk limb homology revealed by a giant filter-feeder with paired flaps". Nature. 522 (7554): 77–80. doi:10.1038/nature14256. PMID 25762145.

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[vinther2014-1] Vinther, Jakob; Stein, Martin; Longrich, Nicholas R.; Harper, David A. T. (2014). "A suspension-feeding anomalocarid from the Early Cambrian" (PDF). Nature. 507 (7493): 496–499. doi:10.1038/nature13010. PMID 24670770.

[vanroy2015-2] Van Roy, Peter; Daley, Allison C.; Briggs, Derek E. G. (2015). "Anomalocaridid trunk limb homology revealed by a giant filter-feeder with paired flaps". Nature. 522 (7554): 77–80. doi:10.1038/nature14256. PMID 25762145.