lithistid

lithistid

(lɪˈθɪstɪd)
n
a sponge, of the group Lithistida, consisting of small spikes which form a skeletal structure
References in periodicals archive ?
The macrofauna is mainly represented by hexactinellid and lithistid sponges, scleractinian corals, bryozoans, brachiopods, tube-dwelling polychaetes, molluscs (gastropods, bivalves, cephalopods--nautiloids--and scaphopods), arthropods (crab claw fragments), echinoderms (crinoid stalk fragments, plates--ossicles--of asteroids, and spines and test fragments of echinoids), shark teeth, turtle plates, as well as sirenian vertebrae and ribs (Figs.
In Ardanatz (and Arraitza) hexactinellid and lithistid sponges occur.
Lithological Outcrops Lithistid Lithistid Stylocoenia units indet.