- clade"
containing the Trilobita,
recognizing the
close affinities of the
nektaspids to trilobites.
However this
necessitates the
inclusion of
genera that...
- Late
Devonian extinction. They
contain groups such as the trilobites,
nektaspids, aglaspidids, and the
cheloniellids among others.
Chelicerates comprise...
- two
major clades; one
reusing Trilobitomorpha to encomp**** trilobites,
nektaspids,
concilitergans and xandarellids, and the
other called Vicissicaudata...
-
barren sea floor.
These include brachiopods, eurypterids, conodonts,
nektaspids, trilobites, a
lobopodian and
orthoconic cephalopods. The environment...
-
Liwia is a
genus of
liwiid nektaspid. It
includes the
species Liwia plana and
Liwia convexa, both
known from
borehole samples several kilometers in depth...
-
morphological similarities to
trilobites and
other related artiopodans like
nektaspids, and
their placement as stem-crustaceans was unsupported. The
study recovered...
- Artiopoda. It has
subsequently been
considered a
potential close relative of
nektaspids. Stein, Martin; Budd,
Graham E; Peel, John S; Harper,
David AT (2013)...
- P.
spinosa and P. tetranodus.
Panlongia is a flat, 2 cm (0.8 in) long
nektaspid, with an oval-shaped non-calcified exoskeleton. Both the head
shield (or...
- is an
extinct species of soft-s****ed trilobite-like
arthropod of the
nektaspid order from the
Lower Cambrian (Cambrian
Stage 4) of
South Australia. It...
- 409W. doi:10.1098/rstb.1977.0117. Budd,
Graham E. (February 1999). "A
nektaspid arthropod from the
Early Cambrian Sirius P****et fauna, with a description...
