-
environments worldwide from the
lower Cambrian to the
upper Ordovician.
Megacheirans are
defined by
their possession of
uniramous "great appendages", which...
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Lomankus is an
extinct genus of
megacheiran (great appendage)
arthropod known from the
upper Ordovician aged Beecher's
Trilobite Bed,
within the larger...
-
Leanchoilia is a
megacheiran marine arthropod known from
Cambrian deposits of the
Burgess Shale in
Canada and the
Chengjiang biota of China. L. superlata...
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between frontal appendages and the original,
morphologically distinct megacheiran great appendages is questionable.). They are
sclerotized (hardened) and...
- 2015
researchers could confirm neither the head
configuration nor the
megacheiran interpretation of the anatomy.
Kootenichela has been
subsequently suggested...
- than 50
species of trilobites, non-biomineralized
arthropods (including
megacheirans, nektaspids, and hymenocarines), radiodonts, palaeoscolecids, a lobopodian...
-
Yawunik is an
extinct genus of
Cambrian megacheiran ("Great appendage" arthropod)
known from the
Burgess Shale in
Canada (
Marble Canyon locality). The...
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Yohoia is an
extinct genus of
megacheiran arthropod from the
Cambrian period that has been
found as
fossils in the
Burgess Shale formation of British...
-
great appendage-like
raptorial arms, it was not
homologous with
those of
megacheirans.
Kodymirus is
currently considered a
member of Vicissicaudata, closely...
-
Haikoucaris is a
genus of
megacheiran arthropod that
contains the
single species Haikoucaris ercaiensis. It was
discovered in the
Cambrian Chengjiang...
