-
known mostly from
Cambrian deposits.
According to
Stein and
Selden (2012)
artiopods are
recognised by the
possession of
filiform antennulae,
limbs with bilobate...
- is
typically subdivided into four subphyla, of
which one is extinct:
Artiopods are an
extinct group of
formerly numerous marine arthropods that disappeared...
-
Etainia is an
extinct genus of
vicissicaudatan artiopod known from the
Ordovician Llanfallteg Formation of Wales. Its type
species is
Etainia howellsorum...
-
chelicerate arthropods,
while some
studies compare its
morphology to an
artiopod.
Willwerathia known only by one species,
Willwerathia laticeps, discovered...
-
digited fishapods,
slowly becoming amphibious. The last non-trilobite
artiopods die off.
First decapods (like prawns) and isopods.
Pressure from jawed...
- myriapod-like animal, and
later considered related to the xiphosurans, or an
artiopod. In 1992, the type
species of
Maldybulakia is
described from the Pragian...
- its head. It is
classified under Conciliterga, a
group of
trilobitomorph artiopod.
Fossils of
Helmetia are both rare and
poorly known; the
monotypic genus...
- Artiopoda, thus
placing them
closer to the trilobites,
being placed in the
artiopod subgroup Vicissicaudata. With 38
known valid species as of 2017, they represent...
- with the
opposing Arachnomorpha hypothesis,
which instead posits that
artiopods and
marrellomorphs are more
closely related to Chelicerates. Scholtz,...
- zone of "frozen growth" in trilobites,
making the case for it
being an
artiopod weaker. All of
these combined mean that the "enantiopod" grade, despite...
