Carinobairdia alpina Kristan-Tollmann 1970
Creators: name: Forel, Marie-Béatrice
name: Grădinaru, Eugen
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Foraminifera
Globothalamea
Lituolida
Bairdiidae
Carinobairdia
Carinobairdia alpina

description: Carinobairdia alpina Kollmann, 1963 emend. Kristan-Tollmann 1970
Fig. 7 C–F
Carinobairdia alpina Kollmann, 1963: 194–195, pl. 3, figs 3–4, pl. 11, figs 9–12.
Carinobairdia alta Kollmann, 1963: 195, pl. 11, figs 2–4.
Carinobairdia tenuicarinata Kollmann, 1963: 196, pl. 11, figs 5–8.
Carinobairdia alpina – Kristan-Tollmann 1964: 71, pl. 3, fig. 8; 1970: 297, pl. 5, figs 5–7; 1988: fig. 6/5. — Bolz 1971a: pl. 2, fig. 6. — Kristan-Tollmann et al. 1979: 150, pl. 6, fig. 5; 1980: 183–184, pl. 7, figs 7–10.
Triebelina (Nodobairdia) alpina – Bolz 1971b: 218–221, pl. 16, figs 233–243. — Urlichs 1972: 676, pl. 1, fig. 2.
Nodobyirdia alpina [sic] – Mette & Mohtat-Aghai 1999: pl. 5, fig. 5.
Nodobairdia alpina – Urlichs & Krystyn 2016: 20. — Hillebrandt et al. 2013: 175.
Material examined
ROMANIA • 1 RV; Black Sea, Romanian Continental Shelf, borehole 817LV, sample CM31C; Rhaetian, Upper Triassic; MNHN.F. F63217 • 1 broken LV; same locality as for preceding but sample CM31B; Rhaetian, Upper Triassic; MNHN.F. F63218 • 1 LV; same collection data as for preceding; Rhaetian, Upper Triassic; MNHN.F. F63219.
Dimensions
See Fig. 3C.
Occurrence
Zlambach Formation, Backhaus Member, Elisabeth Member, Josef Member, Gr̹nbachgraben and Mergel, Dolomitenhütte and Plackles, Austria, Rhaetian, Upper Triassic (Kollmann 1963); K̂ssen Formation, Northern Calcareous Alps, Tyrol, Austria, Rhaetian, Upper Triassic (Kristan-Tollmann 1964; Mette & Mohtat-Aghai 1999); Zlambach Formation, Ĥllgraben, Krautgartenalm, Gr̹nbachgraben, Austria, Rhaetian, Upper Triassic (Kristan-Tollmann 1969, 1970); Zlambach Formation, Fischerwiese, Aussee, Salzkammergut, Austria, Rhaetian, Upper Triassic (Kristan-Tollman, 1970); Zlambach beds, Grünbachgraben, Northern Calcareous Alps, Rhaetian, Upper Triassic (Bolz 1971a, 1971b); K̂ssen Formation, Weissloferbach, Kössen, Austria, Rhaetian, Upper Triassic (Urlichs 1972); K̂ssen Formation, Eiberg section, Northern Calcareous Alps, Rhaetian, Upper Triassic (Mette et al. 2012; Hillebrandt et al. 2013); Steinbergkogel, Austria, uppermost Hallstatt Limestone Formation and lowermost Zlambach Formation, Paracochloceras suessi Zone, Vandaites stuerzenbaumi Zone, Choristoceras marshi Zone, Early Rhaetian, Upper Triassic (Urlichs & Krystyn 2016); Waliabad, Abadeh, Iran, Rhaetian, Upper Triassic (Kristan-Tollmann et al. 1979); Nayband Formation, Wali-Abad, Iran, Rhaetian, Upper Triassic (Kristan-Tollmann et al. 1980; Kristan-Tollmann 1988); Romanian Continental Shelf, Black Sea, Rhaetian, Upper Triassic (this paper).
Remarks
This species was alternatively attributed to Triebelina (Nodobairdia) by Bolz (1971b) and to the newly erected Bolzibairdia by Kozur (1985). As discussed for Carinobairdia triassica triassica, we follow the original generic scheme introduced by Kollmann (1960, 1963). However, we follow Bolz (1971a, 1971b) in considering that C. alta Kollmann, 1963 (erected on LV only) and C. tenuicarinata Kollmann, 1963 (considered as juveniles) are synonyms of C. alpina Kollmann, 1963. Carinobairdia alpina is typical for the Rhaetian, Late Triassic, of western Tethys and Iran as shown by the occurrences list.
The height and length of all specimens of Carinobairdia alpina are plotted in Fig. 3C, which document their distribution in five ontogenetic stages from A-4 to adult. The only carapace known for this species, from the Rhaetian of Iran (Kristan-Tollmann et al. 1980), documents an already important overlap of LV on RV in the A-2. The smallest known specimen is an RV obtained from sample CM31C of the present paper (L = 535 µm; H = 292 µm; H/L = 0.55). The smallest LV is recorded from the Rhaetian of the Northern Calcareous Alps (Bolz 1971b: L = 590 µm; H = 370 µm; H/L = 0.63). The Black Sea specimens are small compared to other records and represent immature stages.
description: Published as part of Forel, Marie-Béatrice & Grădinaru, Eugen, 2020, Rhaetian (Late Triassic) ostracods (Crustacea, Ostracoda) from the offshore prolongation of the North Dobrogean Orogen into the Romanian Black Sea shelf, pp. 1-83 in European Journal of Taxonomy 727 on pages 26-28, DOI: 10.5852/ejt.2020.727.1183, http://zenodo.org/record/4316845