Definition of Heteractinid. Meaning of Heteractinid. Synonyms of Heteractinid

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Definition of Heteractinid

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Meaning of Heteractinid from wikipedia

- (Cambrian Stage 3) of Australia. Calcareans are probably descended from "heteractinid" sponges, which first appeared in the early Cambrian. Calcareans reached...
- radiocyaths are plausible but uncertain; the snowflake-shaped ****ules of heteractinid sponges show some similarity to nesasters. Radiocyaths have been compared...
- 1007/BF02987126. Rigby, J. Keith (1 January 1991). "The new Devonian (Givetian) heteractinid sponge Gondekia from Ontario, Canada, and evolution of the astraeospongiids...
- that they are paraphyletic relative to Hexactinellida (gl**** sponges). Heteractinids can be distinguished by their six-pronged (snowflake-shaped) ****ules...
- K. Rigby and Q. H. Goodbody. 1986. Malluviospongia, a new Devonian heteractinid sponge from the Bird Fiord Formation of southwestern Ellesmere Island...
- nov Valid Fedorov in Fedorov, Parkhaev & Demidenko Cambrian  Russia A heteractinid sponge belonging to the group Heteractinellida and the family Heterostellidae...
- Parallelopora and Amphipora) class Heteractinida [†] (Paleozoic calcitic heteractinids such as Eiffelia) Sub-phylum Silicea / Silicospongia (siliceous poriferans):...