''Bathydiscus'' is an

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

from a well-known class of

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

marine

arthropod Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arth ...

s, the

trilobite Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the At ...

s. 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 ), and of Canada (Newfoundland).Whittington, H. B. et al. Part O, Treatise on Invertebrate Paleontology. Revised, Volume 1 – Trilobita – Introduction, Order Agnostida, Order Redlichiida. 1997

Ecology

''Bathydiscus '' occurs in association with other Weymouthiidae (''

Acidiscus ''Acidiscus'' Rasetti, 1966, is a genus of Eodiscinid trilobite belonging to the family Weymouthiidae Kobayashi T. (1943), Order Agnostida Salter (1864). It lived during the Botomian stage = late Lower Cambrian Stage 4 (upper of two stages subdiv ...

'', ''

Acimetopus ''Acimetopus'' Rasetti, 1966, is a genus of Eodiscinid trilobite belonging to the family Weymouthiidae Kobayashi (1943), Order Agnostida Salter (1864). SALTER, J. W. 1864: On some new fossils from the Lingula-flags of Wales. Quarterly Journal ...

'', ''

Analox ''Analox'' Rasetti, 1966 is a genus of Eodiscinid trilobites belonging to the family Weymouthiidae Kobayashi T. (1943), Order Agnostida (Salter 1864) SALTER, J. W. 1864: On some new fossils from the Lingula-flags of Wales. ''Quarterly Journal of ...

'', '' Bolboparia'', '' Leptochilodiscus'', ''

Serrodiscus ''Serrodiscus'' Richter and Richter 1941. is a genus of Eodiscinid trilobite belonging to the family Weymouthiidae Kobayashi T. (1943), Order Agnostida (Salter 1864). It lived during the late Lower Cambrian, with remains found in Canada (Newfoundl ...

''), ''Calodiscus'', several species of ''

Olenellus ''Olenellus'' is an extinct genus of redlichiid trilobites, with species of average size (about long). It lived during the Botomian and Toyonian stages (''Olenellus''-zone), , in what is currently North-America, part of the palaeocontinent Lau ...

'' and ''Bonnia'' (Dorypygidae).

References

Weymouthiidae Agnostida genera Cambrian trilobites Extinct animals of North America {{cambrian-animal-stub