Biology:Pygocephalomorpha
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The order Pygocephalomorpha is an extinct group of peracarid crustaceans. Pygocephalomorpha appeared in the Late Devonian,[1] were abundant from the Carboniferous era until their extinction in the Early Permian era.[2][3]
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"[4]
Families
The order contains extinct five families, and seven genera incertae sedis:[5][6]
- †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 (Affinity as pygocephalomorph is uncertain[7])
- †Tealliocaris Peach, 1908
- †Laevitealliocaris Yang et al., 2018
- †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
- ↑ Gueriau, Pierre; Charbonnier, Sylvain; Clément, Gaël (2014). "First decapod crustaceans in a Late Devonian continental ecosystem" (in en). Palaeontology 57 (6): 1203–1213. doi:10.1111/pala.12111. ISSN 1475-4983. https://onlinelibrary.wiley.com/doi/10.1111/pala.12111.
- ↑ 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.
- ↑ Pazinato, Paula Giovana; Soares, Marina Bento; Adami-Rodrigues, Karen (2016). "Systematic and palaeoecological significance of the first record of Pygocephalomorpha females bearing oöstegites (Malacostraca, Peracarida) from the lower Permian of southern Brazil" (in en). Palaeontology 59 (6): 817–826. doi:10.1111/pala.12260. ISSN 1475-4983. https://onlinelibrary.wiley.com/doi/full/10.1111/pala.12260.
- ↑ 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. doi: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.
- ↑ Jones, Wade T.; Feldmann, Rodney M.; Schram, Frederick R.; Schweitzer, Carrie E.; Maguire, Evin P. (2016). "The Proof is in the Pouch: Tealliocaris is a Peracarid" (in en). Palaeodiversity 9 (1). doi:10.18476/pale.v9.a5.full. ISSN 1867-6294. https://bioone.org/journals/Palaeodiversity/volume-9/issue-1/pale.v9.a5/The-Proof-is-in-the-Pouch--Tealliocaris-is-a/10.18476/pale.v9.a5.full.
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