Biology:Pygocephalomorpha
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Short description: Extinct order of crustaceans
| Pygocephalomorpha | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Superorder: | Peracarida |
| Order: | †Pygocephalomorpha Beurlen, 1930 |
| Families | |
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The order Pygocephalomorpha is an extinct group of peracarid crustaceans. Pygocephalomorpha were abundant from the Carboniferous era until their extinction in the Permian era.[1]
This group constituted part of the freshwater and aquatic crustacean assemblages. The carapace is relatively axially shortened, with a prominent gastric region. Laterally, a cervical groove is visible, with carapace margins which is defined by an acute spine or process, including a somewhat well developed branchiostegites"[2]
Families
The order contains extinct five families, and seven genera incertae sedis:[3][4]
- †Jerometichenoriidae Schram, 1978
- †Jerometichenoria Schram, 1978
- †Notocarididae Brooks, 1962
- †Notocaris Broom, 1931
- †Paulocaris Clarke, 1920
- †Pygocephalidae Brooks, 1962
- †Anthracaris Brooks, 1962
- †Mamayocaris Brooks, 1962
- †Pygocephalus Huxley, 1857
- †Tealliocarididae Brooks, 1962
- †Tealliocaris Peach, 1908
- †Tylocarididae Taylor, Yan-Bin & Schram, 1998
- †Chaocaris Shen, 1983
- †Fujianocaris Taylor, Yan-Bin & Schram, 1998
- †Liocaris Beurlen, 1931
- †Pseudogalathea Peach, 1883
- †Tylocaris Taylor, Yan-Bin & Schram, 1998
- †Pygocephalomorpha incertae sedis
- †Bellocaris Fong, 1972
- †Hoplita Pineiro, Morosi & Ramos, 2012
- †Iraticaris Adami-Rodrigues, Pazinato & Pinto, 2016
- †Permocaris Adami-Rodrigues, Pazinato & Pinto, 2016
- †Pittinucaris Adami-Rodrigues, Pazinato & Pinto, 2016
- †Pygaspis Beurlen, 1934
- †Sosiocaris Jones, 2015
See also
References
- ↑ Marjorie L. Reaka-Kudla (2002). "Habitat specialization and its relation to conservation policy in Crustacea". in Elva Escobar-Briones, Fernando Alvarez. Modern approaches to the study of Crustacea. Springer. pp. 211–221. ISBN 978-0-306-47366-1. https://books.google.com/books?id=H_u6HHgd2bMC&pg=PA215.
- ↑ Jones, Feldmann, Schweitzer, Reitano, Insacco, Wade , Rodney, Carrie , Agatino , Gianni (1 September 2015). "New Pygocephalomorph (Peracarida) from the Permian of the Sosio Valley (Sicily, Italy)". Journal of Crustacean Biology 35 (5): 627–632. https://doi.org/10.1163/1937240X-00002367.
- ↑ WoRMS. "Pygocephalomorpha ". http://www.marinespecies.org/aphia.php?p=taxdetails&id=477254.
- ↑ WoRMS. "Pygocephalomorpha incertae sedis". http://www.marinespecies.org/aphia.php?p=taxdetails&id=477303.
Wikidata ☰ Q728681 entry
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