- The
Peronopsidae (which may also be
called peronopsids)
comprise the
earliest family of the
Agnostina suborder.
Species of this
family occurred on all...
-
Clavagnostidae Diplagnostidae Doryagnostidae Glyptagnostidae Metagnostidae Peronopsidae Ptychagnostidae Spinagnostidae Superfamily Condylopygoidea Condylopygidae...
-
paleontologist Tullberg.
Peronopsis palmadon is
intermediate between Peronopsidae and Condylopygidae, but it is not
clear whether P.
palmadon is ancestral...
- Phylum:
Arthropoda class: †Trilobita (?) Order: †Agnostida Family: †
Peronopsidae Genus: †Archaeagnostus Kobayashi, 1939
Species A.
primigeneus Kobayashi...
-
Agnostina suborder that
occur approximately contemporaneously with the
Peronopsidae, the
earliest representatives of the main
branch of the Agnostina. One...
- Like all Agnostina,
Acadagnostus has only two
thorax segments. Like all
Peronopsidae, the
cephalon and
pygidium have a
complete set of furrows, and the preglabellar...
-
Republic and the
North Siberian plateau. as in
members of the
family Peronopsidae it
lacks a
preglabellar furrow. Both
cephalon and
pygidium lack spines...
-
Quadragnostus is an
extinct genus from a well-known
class of
fossil marine arthropods, the trilobites. It
lived during the
Cambrian Period,
which lasted...
- Phylum:
Arthropoda class: †Trilobita (?) Order: †Agnostida Family: †
Peronopsidae Genus: †Eoagnostus
Resser and Howell, 1938
Species Eoagnostus roddyi...
-
Animalia Phylum:
Arthropoda class:
Trilobita Order:
Agnostida Family:
Peronopsidae Genus:
Itagnostus Öpik, 1979
species I.
elkedrensis (Etheridge, 1902)...
