The Archaeocyatha are sessile conical animals that somewhat resemble hollow horn corals found in Lower Cambrian sediments. Many modern authors treat them as Porifera (sponges).
All Wikipedia text
is available under the
terms of the GNU Free Documentation License
Search Encyclopedia
Search over one million articles, find something about almost anything!
... Edwin Peary, (1856-1920), first man to reach the North Pole
Auguste Piccard, (1884-1962), physicist and explorer
Jacques Piccard[?], (born 1922), undersea ...