Pygocephalomorpha Temporal range:
| |
---|---|
Scientific classification
![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Malacostraca |
Superorder: | Peracarida |
Order: | †
Pygocephalomorpha Beurlen, 1930 |
Families | |
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]
The order contains extinct five families, and seven genera incertae sedis: [3] [4]
{{
cite journal}}
: CS1 maint: multiple names: authors list (
link)
Pygocephalomorpha Temporal range:
| |
---|---|
Scientific classification
![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Malacostraca |
Superorder: | Peracarida |
Order: | †
Pygocephalomorpha Beurlen, 1930 |
Families | |
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]
The order contains extinct five families, and seven genera incertae sedis: [3] [4]
{{
cite journal}}
: CS1 maint: multiple names: authors list (
link)