Catalog entries: Spongopyramis spongiosa
Original description: Shell partly or entirely enveloped by spongy framework, slender, pyramidal, with rather straight outlines. Cephalis very small, ovate, hyaline. Thorax with nine very stout and nearly straight ribs, which are connected by fifteen to twenty or more irregular, interrupted transverse bars. The irregular quadrangular meshes so produced are filled up by an irregular secondary network, with meshes of very different size and form. The dense spongy envelope, which in the specimen figured covered only half the shell, was complete in another older specimen.
Remarks on original description: Haeckel (1887, p.1261) cites Plectopyramis spongiosa Haeckel 1881 as a synonym.
In the plate caption (pl. 56 fig. 10) the species is give as Plectopyramis spongiosa, n. sp. (vel Spongopyramis polypleura)
Last occurrence (top): within Paleogene Period (23.03-66.04Ma, top in Chattian stage). Data source: Lazarus et al. 2015 - "P age group"
First occurrence (base): within Paleogene Period (23.03-66.04Ma, base in Danian stage). Data source: Lazarus et al. 2015 - "P age group"
Plot of occurrence data:
Bathropyramis spongiosa compiled by the radiolaria@mikrotax project team viewed: 16-4-2021
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