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Protaspis is an
extinct genus of
pteraspidid heterostracan agnathan which lived during the
Early Devonian of the
United States, with
fossils found in...
- Mollusca:
freshwater Bivalvia (mussels)
glochidium Arthropoda: †Trilobita
protaspis (unjointed),
meraspis (increasing
number of joints, but 1 less than the...
-
larval stage (called
protaspis) has not been found, so it is
presumed it was not calcified. The
development of
Redlichia from
protaspis to
adult was gradual...
-
suborders (Phacopina, Calymenina, and Cheirurina)
which share a
distinctive protaspis (unsegmented
larva ) with
three pairs of
spines on its body. The Cheirurina...
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Rhinopteraspis Stegobranchiaspis Gigantaspididae Gigantaspis Protaspididae Protaspis Cosmaspis Lampraspis Europrotaspis Cyrtaspidichthys Oreaspis Psephaspis...
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within Protaspis as subgenera, or
otherwise have been
treated as
species therein.
Species of this
genus are very
similar to
those of
Protaspis, but, are...
- L****n & Patterson, 1990
Peranema dolichonema L****n & Patterson, 1990
Protaspis gemmifera L****n & Patterson, 1990 Bodo
cephaloporus L****n & Patterson...
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Rhinopteraspis Stegobranchiaspis Gigantaspididae Gigantaspis Protaspididae Protaspis Cosmaspis Lampraspis Europrotaspis Cyrtaspidichthys Oreaspis Psephaspis...
- Emsian-aged
marine strata in
Water Canyon, Utah, as a
member of the
genus Protaspis,
naming it
after one
Priscilla Turnbull. As more,
successively better...
- Woodfjordaspis, are
similar in form to Gigantaspis,
while others, such as
Protaspis and Tuberculaspis, have
armor that is more mound-shaped, or Psephaspis...
