PLATE 12.
Main spines of the subfamilies
Somphoentactiniinae, Entactiniinae, Spongentactiniinae, Astroentactiniinae and Thecentactiniinae
Upper Devonian: fig. 1, 3, 8, 9 - Famennian; fig. 2, 4-7 - Middle Frasnian, Domanik Formation. Borehole Zapadnaya Lekkeyaginskaya-65: fig. 1, 3, 8, 9 - sample 86g (depth 2460-2467 m); borehole Ukhtinskaya-3B: fig. 2 - sample 158 (depth 69.6-70.4 m); borehole Shuda-Yag-1003: fig. 4 - sample 56 (depth 81.6-83 m), fig. 6 - sample 65 (depth 75-77.3 m), fig. 7 - sample 34 (depth 104.1-104.6 m), the Lyajol River, outcrop no. 1904, sample 6: fig. 5.
1. Spines are covered by skeletal tissue of the external sphere of skeleton (1-4).
Fig. 1. Adamas cathedrarius Afanasieva, sp. nov., FF-P001/127-12813 (bar=27µm).
Fig. 2. Borisella invisitata Afanasieva, sp. nov., holotype, FF-P001/064-09415 (=15µm).
Fig. 3. Tetrentactinia barysphaera Foreman, FF-P001/126-12716 (=27µm).
Fig. 4. Moskovistella sincera Afanasieva, sp. nov., FF-P001/109-04609 (=15µm).
2. Double spines (5-7)
Fig. 5. Moskovistella deorsiacus (Nazarov et Ormiston), FF-P001/110-11834 (=20µm).
Fig. 6. Moskovistella mira Afanasieva, sp. nov., FF-P001/030-04633 (=15µm).
Fig. 7. Entactinia bifida Afanasieva, sp. nov., FF-P001/029-04604 (=33µm).
3. Curved spines (8, 9)
Fig. 8, 9. Duplexia spinocurva Afanasieva, sp. nov.: 8 - FF-P001/090-12910 (=37µm); 9 - FF-P001/090-12719 (=37µm).
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