- Some
hurdiids had
greater numbers of endites, with
Cordaticaris bearing seven endites of
equal length.
Ursulinacaris is
unique among hurdiids in bearing...
-
rapidly change its
swimming direction efficiently. On the
other hand, some
hurdiids have
features significantly specialized for a n****benthic lifestyle, such...
- does not seem to have
dorsal flaps, a
trait unique to it and a few
other hurdiids, such as Cambroraster. Pates, Stephen; Lerosey-Aubril, Rudy; Daley, Allison...
- of
Radiodont species,
primarily from the
clade Amplectobeluidae.
While hurdiids are
poorly known from the
formation and
surrounding region,
several specimens...
- and the oral cone shape)
align it with the
hurdiids. In 2022 when
describing new
remains of the
basal hurdiid Stanleycaris,
Moysiuk and
Caron ****igned Cordaticaris...
-
represent typical hurdiid features (e.g.
subequal blade-like endites). The eyes were in a
relatively anterior position in
contrast to
other hurdiids.
There are...
- Aegiroc****is, a
large filter-feeding
hurdiid radiodont from Morocco...
- Pseudoangustidontus, an
unnamed hurdiid from Wales, the
middle Ordovician dinocaridid Mieridduryn, and the
Devonian hurdiid Schinderhannes this radiodont...
-
considered to be
related to
modern velvet worms.
Cambroraster falcatus was a
hurdiid radiodont that bore a
large horseshoe-shaped carapace.
Pikaia was a stem-chordate...
- are present, with
inner rows of
spines inside the main cone. Like
other hurdiids,
Hurdia bore a
large frontal carapace protruding from its head composed...
