- Ma)
organism Arkarua is also an
edrioasteroid, but this
interpretation did not gain wide acceptance. Last
edrioasteroids are
known from
Permian (Late Kungurian...
- This list of
edrioasteroids is an
attempt to
create a
comprehensive listing of all
genera from the
fossil record that have ever been
considered to be edrioasteroids...
-
existed from
their dissociated plates, but
other than a few
possible edrioasteroids,
Helicoplacus is the
earliest echinoderm that is well
enough preserved...
- List of
prehistoric echinoid genera List of
crinoid genera List of
edrioasteroid genera List of
prehistoric starfish genera List of
prehistoric stylophoran...
- (Morocco), the
origin of the Ammonoidea, and the
first African pyrgocystid edrioasteroids,
machaerids and phyllocarids".
Palaeontographica Abteilung A. 283 (4–6):...
- Gogia† (an Eocrinoid†) Camptostroma† (an
Edrioasteroid†)
Crinoidea Eleutherozoa...
- survived), and all eurypterids, trilobites, graptolites, hyoliths,
edrioasteroid crinozoans,
blastoids and acanthodians.
Ouachita and
Innuitian orogenies...
-
Hiatus concretion encrusted by
bryozoans (thin,
branching forms) and an
edrioasteroid; Kope
Formation (Upper Ordovician),
northern Kentucky...
- An
Upper Ordovician cobble with the
edrioasteroid Cystaster stellatus and the thin
branching cyclostome bryozoan Corynotrypa. Kope Formation, northern...
-
hardgrounds that
appear in
abundance at this time.
Upper Ordovician edrioasteroid Cystaster stellatus on a
cobble from the Kope
Formation in northern...
