Calcarea build calcite spicules and exhibit varied aquiferous-system organization; Voigt and colleagues illustrate asconoid, syconoid, sylleibid and leuconoid examples, rather than one body plan shared unchanged by every species. This navigation entry is not a phylogeny or a complete taxon dossier.
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Calcarea build calcite spicules and exhibit varied aquiferous-system organization; Voigt and colleagues illustrate asconoid, syconoid, sylleibid and leuconoid examples, rather than one body plan shared unchanged by every species.
claim:taxon:calcarea:morphologyExpanded ribosomal-gene sampling rejects several traditional internal Calcarea groups and tests character evolution; the recovered trees are sample-dependent and do not date the class.
claim:taxon:calcareaCalcarea has no supported scalar temporal range in the cited evidence: the sampled extant phylogeny does not establish a 535 Ma fossil occurrence or crown boundary, so the former 535–0 Ma display is withheld.
claim:taxon:calcarea:range-boundary-rc50