... ordosia n. sp. Girvanella , Subtifloria , Acuasiphonoria , Xianella , and Oscillatoriaceae gen. indet. are assigned to Osillatoriales of cyanobacteria; Ortonella , Hedstroemia , Cayeuxia , Zonotrichites , Proaulopora , and Phacelophyton are assigned to Nostocales of cyanobacteria; and Garwoodia , Renalcis...

...Fig . 14. Micrographs of Girvanella – Proaulopora , Girvanella – Subtifloria Proaulopora – Bija association from open platform and bank. Abbreviations as in Figure 5 and: Subt. = Subtifloria ; brac. = brachiopod. A – C ) Girvanella – Proaulopora association: packstone, containing...

...Figure 12 — Subtifloria sp. size measurements. ...

... Altai). There are two successive algal complexes: lower — with Korilophyton , Gemma , Razumovskia , Girvanella , Proaulopora , and Renalcis ; upper — the same, supplemented with abundant species of the genus Epiphyton and with the genera Batinevia , Tubophyllum , and Subtifloria . These complexes...

..., in the Aldanocyathus sunnaginicus Zone of the earliest Tommotian, Angulocellularia, Bajanophyton, Batenevia, Botomaella, Girvanella, Hedstroemia, Korilophyton, Proaulopora, Subtifloria, and Tarthinia appear. Immediately above this, in the Dokidocyathus regularis Zone of the middle Tommotian, Chabakovia appears...

...-covered intervals and containing only scarce remains of the calcimicrobes Tubophyllum victori and Subtifloria delicata . Section 3, to the contrary, is rich in faunal remains and is better exposed ( Figs. 2 and 3 ). Fig. 2. Schematic geological profile of Section 3. 1 — calcibionts; 2...

... meters of the Sukharikha Formation (without the uppermost 1.5–2.0 meters) contain an assemblage of calcareous algae Hedstroemia sp., Renalcis polymorphus Masl., Proaulopora glabra Krasn., Subtifloria gracila Luch., constituting bioherms. Numerous trace fossils in cup-shaped burrows...

... salinity condition ( Sinha et al. 2005 ). Pyrite is an indicator of poorly oxygenated low energy environment rich in organic matter ( Miller and Heller, 1994 ). Brachiopod and echinoids are frequent biotic frequency with Solenopora filiformis, Dasyporella silurica, Nuia sibirica , and ?Subtifloria algae...

... resolved at the species level. Calcimicrobes (14 taxa) encompass taxa considered to represent calcified cyanobacteria ( Girvanella kasakiensis , G . problematica , Subtifloria delicata , Garwoodia gregaria , Bija sibirica , Ortonella tenuissima , Hedstroemia halimedoidea , Figs. 3A–3H ) and taxa...

... or the Yenisei R., near town of Igarka, Sukharikha Formation, Tommotian Stage, Lower CambriaI Figs. 7–9 — Subtifloria sp., carbonate-mineralized filaments after dissolutiolL 7. 8 — ×66, 9 — ×32, sample 2155, East Sayan, Sarkhoi R., Khuzhirtai Formation, Atdabanian Stage, Lower CambrialL Fig. 10 — Subtifloria...

... microphytoliths Nubecularites punctatus Reitl., N. catagraphus Reitl., calcareous algae Renalcis sp., Girvanella sp., Subtifloria delicata Masl., and radiolarians Paleocenosphaera parva Nazarov ( Fig. 3 , No. 5, thin section T5021/191), widespread in the Lower Cambrian. The member gradually gives...

..., Girvanella, Hedstroemia, Proaulopora, and Subtifloria. The roof of the Sukharikha Formation, dated as Early Tommotian, consists of up to 1.5 m wide flat biscuit-like Renalcis algal bioherms [ 23 ]. In the western Anabar region, Vendian bioherms form the upper section of the uppermost Vendian Manykai...