- body is or
originally was a
modified globe with
meridional symmetry.
Echinozoans lack arms, brachioles, or
other appendages, and do not at any time exhibit...
-
Tunicates Vertebrates Echinoderms Sea
lilies Asterozoans inc.
starfish Echinozoans inc. sea
urchins Hemichordates Acorn worms Pterobranchs Nematodes Chromadorea...
-
symmetry transversely with a
dorsal and a
ventral surface. As in
other Echinozoans,
there are five
ambulacra separated by five
ambulacral grooves, the interambulacra...
- ISBNÂ 978-0-9833599-1-3. Part U.
Echinodermata 3,
Volumes 1 and 2:
Asterozoans &
Echinozoans, **** + 695 p., 534 fig., 1966, and is
available here. ISBNÂ 0-8137-3022-8...
- (1974) [6] Smith, A.B. and J.J. Savill. Bromidechinus, a new
Ordovician echinozoan (Echinodermata), and its
bearing on the
early history of echinoids. Transactions...
