| Glass sponges (Hexactinellida)
Glass sponges - class Hexactinellida are typical by tri-axial (triaxonn) spicules, composed of opal (in the fossil record by SiO2).
Author: Radek Vodrážka
| Solidinodus poctae | Zahálka (1889a), Pl. I, fig 11 | | | p4175 | | Solidinodus poctae | | | | p4318 | | Solidinodus poctae | Zahálka (1889a), Pl. I, fig. 4 | | | p4318 | | Solidinodus poctae | | | | p4483 | | Solidinodus poctae | Zahálka (1889a), Pl. I, fig. 2 a, b | | | p4175 | | Solidinodus poctae | Zahálka (1889a), Pl. 1, fig. 6 a, b | | | p4175 | | Solidinodus poctae | Zahálka (1889a), Pl. 1, fig. 7 | | | p4175 | | Solidinodus poctae | Zahálka (1889a), Pl. 1, fig. 8 | | | p4175 | | Solidonodus poctae | | | | p4278 | | Solidonodus poctae | | | | p4283 | | Solidonodus poctae | Zahálka (1889a), Pl. I, fig. 5 a, b | | | p4318 | | Solidonodus purkynei | | | | p4305 | | Stichophyma turbinata | | | | p4469 | | Stichophyma turbinata | | | | p4360 | | Synaulia patinaeformis | | | | p3912 | | Thecosiphonia craniata | Zahálka (1888), Pl. 1, fig. 1-2 | | | p2552 | | Thecosiphonia nobilis | | | | p4365 | | Thecosiphonia nobilis | | | | p4364 | | Thecosiphonia terminata | | | | p4154 | | Thecosiphonia ternata | | | | p4367 |
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![[ENG]](img/vlajka-cr.gif)
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