Dicerodiscus

Dicerodiscus
Temporal range: Early Botomian (Olenellus-zone)
↓
[1]
a drawing of a cephalon of Dicerodiscus tsunyiensis, and a pygidium of D. pertenus
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Trilobita
Order:
Agnostida
Suborder:
Eodiscina
Superfamily:
Eodiscoidea
Family:
Hebediscidae
Genus:
Dicerodiscus

W. Chang, 1964
species
  • D. tsunyiensis W. Chang, 1964 (Type)
  • D. alcimus Qian et S. G. Zhang, 1980
  • D. pertenus Qian et S. G. Zhang, 1980
  • D. transversus Qian et S. G. Zhang, 1980

Dicerodiscus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the early part of the Botomian stage,[1] in China (Guizhou and Sichuan). Four species have been assigned to it. Dicerodiscus is unique for an eodiscoid in having conspicuous and curved spines that are attached anteriorly, and at their base are directed outward perpendicular to the midline, before gradually bending further backwards.[2]

  1. ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 364: 560. Archived from the original on 2006-09-05. Retrieved 2008-01-12.
  2. ^ Whittington, H.B.; et al., eds. (1997). Volume 1 – Trilobita – Introduction, Order Agnostida, Order Redlichiida. Treatise on Invertebrate Paleontology. Vol. Part O, Revised.