- kilometres. Many
genera are
found in only the
abyssal zone,
including many
cidaroids, most of the
genera in the
Echinothuriidae family, and the "cactus urchins"...
- tribuloides, the
slate pencil urchin (named
after slate pencil), is a
species of
cidaroid sea
urchins that
inhabits littoral regions of the
Atlantic Ocean. As a...
-
Revolution but it is
clear from
bromalites (fossilised ‘vomit’) that
cidaroids were
consumed by predators.
Echinoids radiate into
predatory niches and...
- "Urchins in the meadow:
Paleobiological and
evolutionary implications of
cidaroid predation on crinoids". Paleobiology. 34 (1): 22–34. Bibcode:2008Pbio....
- "Urchins in the Meadow:
Paleobiological and
Evolutionary Implications of
Cidaroid Predation on Crinoids". Paleobiology. 34 (1): 22–34. Bibcode:2008Pbio....
-
Eucidaris is a
genus of
cidaroid sea
urchins known as
slate pencil urchins (named
after slate pencil). They are
characterised by a
moderately thick test...
- A. Bischof;
Bernhard Hostettler;
Ursula Menkveld-Gfeller (2018). "The
cidaroids from the
Middle Oxfordian St-Ursanne
Formation of the
Swiss Jura Mountains"...
- Many
different fossil cidaroid radiola (spines) at the MNHN...
-
slate pencil sea urchin, is a
species of
echinoderms in the
family of
Cidaroid. This sea
urchin lives in
coastal areas in the Galapagos, Clipperton, and...
- Europe, Ukraine,
North America,
North Africa and the West Pacific. All
Cidaroids are
regular and have the test
composed of
twenty columns of
plates with...
