Named By: S. Conway Morris and J.-B. Caron - 2007.
Classification: Animalia, Lophotrochozoa, Mollusca, Halkieriidae.
Species: O. reburrus (type), O. elongata.
Size: O. reburrus up to 1 centimetre long. O. elongata. Up to 2 centimetres long.
Known locations: Canada - Burgesss Shale.
Time period: Mid Cambrian.
Fossil representation: Several individuals.
to the more famous Wiwaxia,
Orthrozanclus was a bottom dwelling
oceanic organism that lived during the Cambrian. Orthrozanclus
sclerite scales along the body, and larger spines that rose up from
the spines possibly for defence. Orthrozanclus is
thought to have
scoured the microbial mat of the sea floor for food.
- Halwaxiids and the early evolution of lophotrochozoans. - Science 315:1255-1258. - S. Conway Morris and J.-B. Caron - 2007.
- Orthrozanclus elongata n. sp. And the significance of sclerite-covered taxa for early trochozoan evolution. - Scientific Reports. 7 (1): 16232. - Fangchen Zhao, Martin R. Smith, Zongjun Yin, Han Zeng & Guoxiang Li & Maoyan Zang - 2017.