Bathyuriscus

Bathyuriscus
Temporal range:
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: †Trilobita
Order: †Corynexochida
Family: †Dolichometopidae
Genus: †Bathyuriscus
Meek, 1873
Species
  • B. haydeni (type) synonym Bathyurus haydeni
  • B. adaeus Walcott, 1916
  • B. balus Walcott, 1916
  • B. boscaputensis Young & Ludvigsen, 1989
  • B. brighamensis Resser, 1939
  • B. concavus Babcock, 1994
  • B. fimbriatus Robison, 1964
  • B. formosus Deiss
  • B. howelli Walcott, 1886 synonym Athabaskia howelli
  • B. maximus Mason, 1935
  • B. mendozanus (Rusconi, 1945)) synonyms Plesioparabolina mendozana, Amecephalus mendozanus, A. mendozaensis, Kistocare mendozanum, Parkaspis endecamera
  • B. ornatus Walcott, 1908
  • B. petalus Fritz, 1968
  • B. piedmontensis Resser, 1938
  • B. punctatus Palmer, 1968
  • B. rotundatus (Rominger, 1887) synonym Embolimus rotundata
  • B. saintsmithi Chapman, 1929
  • B. terranovensis Young & Ludvigsen, 1989
  • B. wongi Sun, 1935
Synonyms
  • Orria
  • Orriella
  • Wenkchemnia

Bathyuriscus is an extinct genus of Cambrian trilobite. It was a nektobenthic predatory carnivore. The genus Bathyuriscus is endemic to the shallow seas that surrounded Laurentia. Its major characteristics are a large forward-reaching glabella, pointed pleurae or pleurae with very short spines, and a medium pygidium with well-impressed furrows. Complete specimens have never reached the size of 7 cm predicted by the largest pygidium found. Bathyuriscus is often found with the free cheeks shed, indicating a moulted exoskeleton. An average specimen will in addition have a furrowed glabella, crescent-shaped eyes, be semi-circular in overall body shape, have 7 to 9 thoracic segments, and a length of about 1.5 inches.

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