Vachard et al.—Eifelian–Givetian foraminifers of the Carnic Alps (Austria)
Description.—Outer diameter=0.26mm; inner diameter= 0.12mm; test wall thickness=0.03mm.
Materials.—Three specimens (sample POL11-5). Ivanovella reitlingerae new species
urn:lsid:
zoobank.org:act:11BF6627-39AF-4F5C-8C30- 48A3841DC9DB
Figure 10.16, 10.17, 10.22
1965 Parathurammina cf. spinosa Lipina; Ferrari and Vai, text-fig. 2e.
1971 Parathurammina aperturata Pronina; Menner and Reitlinger, p. 29, pl. 8, figs. 2, 7–9.
Holotype.—Fig. 10.16 (sample POL11a-38); Institute of Geol- ogy, University of Innsbruck, Cat. Nr. P 10139-POL 11a (thin section); early Givetian of Feldkogel Limestone, Polinik For- mation, Mount Polinik (Austria).
Diagnosis.—An Ivanovella with a central chamber sub- trapezoidal to subhexagonal, and numerous thin cylindrical necks.
Occurrence.—Givetian of Norilsk region (NW Siberia). ?Fras- nian of northern Italy. Discovered in the Givetian Feldkogel Limestone of Mount Polinik (Carnic Alps, Austria).
Description.—Outer diameter=0.21–0.23mm; inner dia- meter=0.12–0.14mm; test wall thickness=0.003–0.005mm; neck diameter (nd)=0.01–0.02mm.
Etymology.—Named in honor of E.A. Reitlinger who illustrated the taxon.
Materials.—A dozen specimens (samples POL11a-23, POL11a-38, and POL11a-40).
Remarks.—Differs from Parathurammina aperturata by the unilayered wall, the polygonal central chamber, and longer necks; and from the other Ivanovella by thinner wall and necks, and more regularly arranged around the central chamber.
Ivanovella luginensis Zadorozhnyi and Yuferev in Dubatolov, 1981
Figure 10.18, 10.20, 10.21
1981 Ivanovella luginensis Zadorozhnyi and Yuferev in Dubatolov, p. 56, pl. 1, figs. 5, 9, 10.
1984 Ivanovella luginensis; Zadorozhnyi and Yuferev, p. 99, pl. 3, figs. 12, 13.
1988 Ivanovella luginensis; Bogush et al., p. 18. 1990 Ivanovella lunginensis (sic); Bogush and Yuferev, p. 22.
Holotype.—Axial section (No. 576/8, IGiG SOANSSSR) from the Frasnian of the oblast of Tomsk, SW Siberia, Russia (Zadorozhnyi and Yuferev in Dubatolov, 1981, pl. 1, fig. 5).
343
Diagnosis.—Small species characterized by numerous necks, irregularly arranged. Necks short to fairly long. Wall relatively thick.
Occurrence.—Late Emsian of Altai, and Frasnian of Tomsk area (SW Siberia, Russia). Discovered in the Givetian of Mount Polinik (Carnic Alps, Austria).
Description.—Outer diameter=0.12–0.15mm (the type mate- rial is even smaller: 0.08–0.13mm); number of necks: 6–15; length of necks=0.03–0.05mm (with a wall from 0.005 to 0.01mm); test wall thickness=0.02–0.03mm.
Materials.—25 specimens (samples POL11a–9a, POL11b–18a, and POL11b–21b).
Ivanovella sp. 4 Figure 10.19
1994 Parathurammina stellata Lipina; Vachard, pl. 2, fig. 8 (only).
Diagnosis.—Moderate-size species characterized by few abundant necks, irregularly arranged and short to moderate. Wall relatively thin.
Occurrence.—Frasnian of western France. Rare in the Givetian of Mount Polinik (Carnic Alps, Austria).
Description.—Outer diameter=0.17mm; inner diameter= 0.09mm; number of necks: six; length of necks=0.05– 0.06mm; test wall thickness=0.01–0.02mm.
Materials.—Three specimens (sample POL11a-8).
Genus Neoarchaesphaera Miklukho-Maklay, 1963 (non 1958)
Type species.—Neoarchaesphaera bykovae Miklukho-Maklay, 1965 (= Archaesphaera magna sensu Bykova in Bykova and Polenova, 1955 non Suleimanov, 1945=Neoarchaesphaera magna Miklukho-Maklay sensu Loeblich and Tappan, 1987).
Other species.—SeeZadorozhnyi andYuferev in Dubatolov (1981).
Diagnosis.—Small-sized Ivanovellidae with an irregular angular-rounded to spherical profile. Central chamber spherical, relatively broad. Fairly abundant papilliform to longer pro- tuberances, as radiate necks, prominent at the periphery and not communicating with the central chamber. Inconspicuous aper- tures. Wall dark-microgranular.
Occurrence.—Early Ordovician of Sonora (Mexico; Vachard et al., 2017). Silurian of the Urals and Poland. Late Emsian of Gornyi Altai. Late Silurian–Early Devonian Zeravshano-Gissar (Saltovskaya, 1981 as Parathurammina [partim]). Relatively frequent and probably widespread during the Devonian (with e.g., Parathurammina sensu Malakhova, 1969, pl. 48, figs. 330, 331, pl. 49, fig. 337); Parathurammina? sensu Racki and
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