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Archaeocyatha (/ˈɑːrkioʊsaɪəθə/, 'ancient cups') is a
taxon of extinct, sessile, reef-building
marine sponges that
lived in warm
tropical and subtropical...
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walls and
septa in
Archaeocyatha. They have been
considered separate phyla, however, the
consensus is
growing that
Archaeocyatha was in fact a type of...
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extinct sponge from the late Ediacaran, with
possible affinities to the
Archaeocyatha.
Estimated to be
about 543
million years old, A.
germsi has been identified...
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Archaeocyatha extinction...
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Ajacicyathida is a
prehistoric order of
sponges in the
class Archaeocyatha. It was
described in 1939, and is
known from the
Early Cambrian. In addition...
- name for all
Porifera that
build reefs. In the
early Cambrian period,
Archaeocyatha sponges were the world's
first reef-building organisms, and sponges...
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stromatolites which had been
replaced by reef
building sponges known as
Archaeocyatha,
returned once more as the
archaeocyathids became extinct. This declining...
- cnidarians; algae; foraminiferans; a
completely separate phylum of animals,
Archaeocyatha; or even a
completely separate kingdom of life,
labeled Archaeata or...
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Volumes 4 & 5:
Hypercalcified Porifera,
Paleozoic Stromatoporoidea &
Archaeocyatha, liii + 1223 p., 665 figs., 2015,
available here. ISBN 978-0-9903621-2-8...
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Agnotozoa Phylum Mesozoa Subkingdom Parazoa Phylum Porifera Phylum Archaeocyatha †
Subkingdom Eumetazoa Branch Radiata Phylum Cnidaria Phylum Ctenophora...
