From Wikipedia, the free encyclopedia
Extinct order of crustaceans
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
†
Notocarididae Brooks, 1962
†
Pygocephalidae Brooks, 1962
†
Tealliocarididae Brooks, 1962
†
Tylocarididae 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 (ed.). Modern approaches to the study of Crustacea . Springer. pp. 211–221.
ISBN
978-0-306-47366-1 .
^ 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 – via Oxford Academic. {{
cite journal }}
: CS1 maint: multiple names: authors list (
link )
^ WoRMS.
"Pygocephalomorpha" .
World Register of Marine Species . Retrieved 26 December 2022 .
^ WoRMS.
"Pygocephalomorpha incertae sedis " .
World Register of Marine Species . Retrieved 26 December 2022 .