-
Hurdiidae (synonymous with the
previously named Peytoiidae) is an
extinct cosmopolitan family of radiodonts, a
group of stem-group arthropods,
which lived...
-
Lower Cambrian Maotianshan Shales,
tentatively classified as a
hurdiid (
peytoiid) radiodont, and
originally as a thylacocephalan. The
genus contains a single...
- stem-arthropods) from the
lower Paleozoic era. It
belongs to the
larger hurdiidae (
peytoiid) family,
which were the most
diverse and long
lasting radiodonts. The members...
-
Cordaticaris (heart-shaped shrimp) is a
genus of
extinct hurdiid (
peytoiid)
radiodont (stem-group arthropod) that
lived in what is now
northern China during...
-
Titanokorys is a
genus of
extinct hurdiid (
peytoiid)
radiodont (a
grouping of
primitive stem
arthropods which lived during the
early Paleozoic) that existed...
-
Pseudoangustidontus (meaning "false Angustidontus") is a
genus of
hurdiid (
peytoiid)
radiodont from the
Lower Ordovician of Morocco. This
genus is
known from...
- Morocco, but
these have yet to be
thoroughly studied, and are
likely to be
peytoiid appendages.
Pentecopterus was a
relatively derived eurypterid, part of...
-
other groups. Some
notable examples of
contemporary genera include the
peytoiid radiodont Schinderhannes bartelsi, the
marrellomorphid arthropods Mimetaster...
- classification, or are
otherwise debated in
their exact affinity.
Hurdiids (
peytoiids) have
historically been
considered absent, or at
least rare, from the...
-
Oelandocaris has a
large head
segment with a
possible median eye,
similar to
peytoiids,
making up
roughly one half of its body. It has five tergites, each with...
