A living specimen of a spherical spumellarian radiolarian (Styptosphaera sp.) showing the spherical central capsule enclosed by a spongiose siliceous shell. Numerous cytoplasmic strands (axopodia) radiate outward from the central capsule and bear patches of golden-pigmented algal symbionts.
Figure 5. Lodevohymen lapeyriei gen. et sp. n.(?Diaphanopterodea), holotype LdLAP 556: A photograph of wing, B drawing of wing (Scale bar represents 3 mm).
David A. Grimaldi, Antonio Arillo, Jeffrey M. Cumming, Martin Hauser
Zookeys
Figure 11.a-d Myanmyia asteiformia Grimaldi, gen. et sp. n. (unplaced to family), in Burmese amber (holotype, AMNH Bu1616) a Anteroventral detail of head b dorsal habitus, as preserved c pretarsus. d apex of abdomen, ventral view.
A living spumellarian radiolarian (Spongaster sp.) that secretes a quadrangular, siliceous, spongiose shell enclosing the central capsule. The greenish tint is caused by numerous algal symbionts enclosed by the peripheral cytoplasm. A halo of cytoplasmic strands (axopodia) radiates from the surface. The axopodia are used to capture food, usually small crustacea (e.g. copepods) or algae.
Haeckel says: Entire shell and central capsule. Numerous club-shaped radial apophyses or coecal sacs arise from the pink central capsule and are protruded through the pores of the medullary shell, which is completely hidden by them. The sarcomatrix in the calymma, surrounding the central capsule, exhibits a fine radial striation. Numerous retracted pseudopodia, bearing red granules, arise from the sarcomatrix and piece the calymma radially. the interval between the two concentric shells is filled up by the hyaline calymma.