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Olenellina is a
suborder of the
order Redlichiida of
trilobites that
occurs about halfway during the
Lower Cambrian, at the
start of the
stage called the...
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roughly equivalent time in Laurentia,
Siberia and West Gondwana. All
Olenellina lack
facial sutures (see below), and this is
thought to
represent the...
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remains some discussion, but
among the
earliest are
Fallotaspis (suborder
Olenellina), and
Lemdadella (suborder Redlichiina), both
belonging to this order...
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thinly calcified, and has crescent-shaped eye ridges. As part of the
Olenellina suborder,
Bristolia lacks dorsal sutures. Like all
other members of the...
- ****igned to the Callaviinae. Lieberman, who made
cladistic analyses of the
Olenellina and the
included superfamilies,
regards Andalusiana an
advanced "Nevadioidea"...
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thinly calcified, and has crescent-shaped eye ridges. As part of the
Olenellina suborder,
Archaeaspis lack
dorsal sutures. The
superfamily Fallotaspidoidea...
- what is now Argentina. This
family can be
distinguished from most
other Olenellina by the
partial merger of the
frontal (L3) and
middle pair (L2) of lateral...
- crescent-shaped eye ridges, but
these rise
above the exoskeleton. As part of the
Olenellina suborder,
Biceratops lacks dorsal sutures. Like all
other members of the...
- †Xandarellida
Order †Nectaspidida
Order †Helmetiida †
Order †Eodiscina
Order †
Olenellina Order †Asaphida
Order †Aulacopleurida
Order †Corynexochida
Order †Harpetida...
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thinly calcified, and has crescent-shaped eye ridges. As part of the
Olenellina suborder,
Fallotaspis lacks dorsal sutures. As part of the superfamily...
