- A
coral reef is an
underwater ecosystem characterized by
reef-building corals.
Reefs are
formed of
colonies of
coral polyps held
together by
calcium carbonate...
- some
major extinct groups Rugosa and Tabulata, have been
important reef builders through much of the
Phanerozoic since the
Ordovician Period. However...
- many
identical individual polyps.
Coral species include the
important reef builders that
inhabit tropical oceans and
secrete calcium carbonate to form a...
- calcite-skeletoned
archaeocyathid and
stromatoporoid sponges were the
primary reef-
builders.
Sponge reefs were once a
dominant landscape in the
Paleozoic and Mesozoic...
-
United States Cr****ostrea virginica, the
eastern oyster, was a
major reef builder in the
Chesapeake Bay
until the late 19th century.
Because of overfishing...
- Demosponges. The
archaeocyathids were
important reef-
builders in the
early to
middle Cambrian, with
reefs (and
indeed any ac****ulation of carbonates) becoming...
- Sal****er Fish, Surgeonfish,
United States,
yellow tang
Reef Builders".
Reef Builders | The
Reef and
Marine Aquarium Blog. 2015-10-20.
Retrieved 2017-08-05...
- fossil-rich, with
prehistoric corals, sponges,
calcareous algae, and
other reef-
builders contributing to a
large portion of the structure's volume. This density...
-
important coral reef builders like
other stony corals in the
order Scleractinia.
Brain corals are
found in
shallow warm
water coral reefs in all the world's...
- extinctions. The last true
stromatoporoid sponges, a
major group of
Devonian reef builders,
completely died out in the
Hangenberg Event. Conversely,
tabulate corals...
