Opabinia regalis est exstinctum arthropodum aevi Cambrici in Columbia Britannica inventum. Viginti tantum fossilia e sedimentis apothecariis (inter quae schisto Burgessensi) inventa sunt. Opabinia regalis habuit proboscidem, quinque oculos, caudam, corpus articulatum.

Fossile Opabiniae regalis in Instituto Smithsoniano exhibitum.

Classis : Dinocaridida 
Ordo : Radiodonta 
Familia : Opabiniidae 
Genus : Opabinia 
Walcott, 1912
Species : O. regalis 
Opabinia regalis 
Walcott, 1912  
Palaeontologia
508–508 m.a.Cambrium medium

Bibliographia

recensere
  • J. Bergström, "The Cambrian Opabinia and Anomalocaris" in Lethaia vol. 20 (1987) pp. 187–188.
  • D. E. G. Briggs, H. B. Whittington, "The affinities of the Cambrian animals Anomalocaris and Opabinia" in Lethaia vol. 20 (1987) pp. 185–186.
  • Charles D. Walcott, "Middle Cambrian Branchiopoda, Malacostraca, Trilobita and Merostomata" in Smithsonian Miscellaneous Collections vol. 57 (1912) pp. 145-228

Nexus interni