Biology:Plagiochasma (echinoderm)

From HandWiki
Short description: Extinct genus of sea urchins


Plagiochasma
Scientific classification
Kingdom:
Animalia
Phylum:
Class:
Echinoidea
Infraclass:
Family:
Pygaulidae
Genus:
Plagiochasma

Pomel, 1883
Species

See text

Plagiochasma is an extinct echinoderm genus in the family Pygaulidae.[1]

Species includes:

  • Plagiochasma cruciferum (Morton, 1830); Paleocene of Denmark, Belgium, The Netherlands, Trinidad and the United States
  • Plagiochasma faringdonense (Wright, 1875); Lower Greensand, Upper Aptian, Early Cretaceous of UK
  • Plagiochasma olfersii (L. Agassiz, 1836); Hauterivian, Early Cretaceous of France and Switzerland
  • Plagiochasma saurai Forner i Valls, 2016; Barremian, Early Cretaceous of Spain
  • Plagiochasma texanum Smith & Rader, 2009; Lower Albian, Texas, USA

See also

  • List of prehistoric echinoderms
  • List of prehistoric echinoids

References

Wikidata ☰ Q7200488 entry