| Home> Plates
 

Afanasieva 2000


PLATE 20.
Structura of external skeleton sphere of the subfamilies
Haplentactiniinae, Pseudorotasphaerinae, Polyentactiniinae,
Spongopolyentactiniinae and Somphoentactiniinae
Upper Devonian: fig. 1-6 - Middle Frasnian, Domanik Formation; fig. 7, 8 - Famennian. Borehole Ukhtinskaya-3B: fig. 1 - sample 116 (depth 100.6-101 m); borehole Shuda-Yag-1003: fig. 2 - sample 28 (depth 106-107 m), fig. 3 - sample 29 (depth 105-106 m), fig. 4 - sample 68 (depth 73.3-73.5m), fig. 5 - sample 73 (depth 71.4-71.9 m), fig. 6 - sample 72 (depth 71.9-72.4 m); borehole Zapadnaya Lekkeyaginskaya-65: fig. 7, 8 - sample 86g (depth 2460-2467 m).

1. Latticed shell of skeleton (1, 2)
Fig. 1. Haplentactinia labirinthica Aitchison, FF-P001/004-09315 (bar=56Ám).
Fig. 2. Haplentactinia alekseevi Afanasieva, sp. nov., FF-P001/038-04304 (=23Ám).

2. Reticular shell of skeleton (3, 4)
Fig. 3. Russirad kazintsovae Afanasieva, sp. nov., FF-P001/026-04524 (=33Ám).
Fig. 4. Polyentactinia zhamoidai Afanasieva, sp. nov., FF-P001/011-04721 (=15Ám).

3. Spongy shell of skeleton (5-8)
Fig. 5. Retentactinia kelleri Afanasieva, sp. nov., FF-P001/002-08718 (=33Ám).
Fig. 6. Spongentactinella olafi Afanasieva, sp. nov., FF-P001/056-08514 (=20Ám).
Fig. 7, 8. Adamas cathedrarius Afanasieva, sp. nov.: 7 - FF-P001/127-12813 (=27Ám), 8 - FF-P001/127-12724 (=7Ám).