Orthrozanclus

Orthrozanclus
Temporal range: Chengjiang–Burgess Shale
Reconstruction of O. elongata by Zhao et al. (2017)[2]
Specimen of O. elongata, from Zhao et al. (2017)[3]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Superphylum: Lophotrochozoa
Phylum: Mollusca
Family: †Halkieriidae
Genus: †Orthrozanclus
Conway Morris & Caron, 2007[1]
Species
  • O. reburrus Conway Morris & Caron, 2007[1]
  • O. elongata Zhao & Smith, 2017[2]

Orthrozanclus (from Greek ὄρθρος + ζᾰ́γκλον (órthros + zánklon), "dawn scythe") is a genus of sea creatures known from two species, O. reburrus from the Middle Cambrian (~505 million years ago) Burgess shale and O. elongata from Early Cambrian (~518 million years ago) Maotianshan Shales. Animals in this genus were one to two centimeters long, with spikes protruding from their armored bodies. The placement of this genus into a specific family is not universally accepted.[4]

  1. ^ a b Cite error: The named reference ConwayMorrisCaron2007 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Zhao2017 was invoked but never defined (see the help page).
  3. ^ Fangchen, Zhao; Smith, Martin; Zongjun, Yin; Han, Zang; Maoyan, Zhu (2017), "High resolution images of Orthrozanclus elongata", Figshare, doi:10.6084/m9.figshare.c.3841387.v1
  4. ^ N.J., Butterfield (2007-12-18). "Lophotrochozoan roots and stems". In Budd, G.E.; Streng, M.; Daley, A.C.; Willman, S. (eds.). Programme with Abstracts. Palaeontological Association Annual Meeting. Uppsala, Sweden. pp. 26–7.