title: Bathydiscus
text: # Bathydiscus
  
  Bathydiscus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Botomian stage.
  
  ## Distribution
  
  Bathydiscus is known from the Lower Cambrian of the United States (unnamed formation, East Chatham Quad, Columbia County, New York State 42°24′N 73°30′W﻿ / ﻿42.400°N 73.500°W﻿ / 42.400; -73.500), and of Canada (Newfoundland).
  
  ## Ecology
  
  Bathydiscus occurs in association with other Weymouthiidae (Acidiscus, Acimetopus, Analox, Bolboparia, Leptochilodiscus, Serrodiscus), Calodiscus, several species of Olenellus and Bonnia (Dorypygidae).
  
  