Lobobairdia salinaria Kollmann, 1963
publication ID |
https://doi.org/ 10.5852/ejt.2020.727.1183 |
publication LSID |
lsid:zoobank.org:pub:85AF63D9-5E9E-4CE0-AEC6-6F7CC8C4D375 |
DOI |
https://doi.org/10.5281/zenodo.4340763 |
persistent identifier |
https://treatment.plazi.org/id/9F3D1275-FFC5-641A-DC5F-FE920E6F483F |
treatment provided by |
Plazi |
scientific name |
Lobobairdia salinaria Kollmann, 1963 |
status |
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Lobobairdia salinaria Kollmann, 1963 View in CoL
Fig. 9 View Fig J–M
Lobobairdia salinaria Kollmann 1963: 169, pl. 6, figs 9–12.
Ptychobairdia View in CoL ? sp. – Kollmann 1960: 102, pl. 27, figs 5–8.
Lobobairdia salinaria – Bolz 1969: 419, pl. 1, fig. 7–10. — Urlichs 1972: 675, pl. 1, fig. 1. — Mette & Mohtat-Aghai 1999: pl. 5, figs 9–10. — Zorn 2010: 271, pl. 7, figs 1–4.
non Lobobairdia salinaria – Sebe et al. 2013: 358.
Material examined
ROMANIA • 1 RV; Black Sea , Romanian Continental Shelf , borehole 817LV, sample CM31B; Rhaetian, Upper Triassic; MNHN.F. F63252 View Materials • 1 LV; same collection data as for preceding; Rhaetian, Upper Triassic; MNHN.F. F63253 View Materials • 1 LV; same collection data as for preceding; Rhaetian, Upper Triassic; MNHN.F. F63254 View Materials • 1 LV; same locality as for preceding but sample CM31C; Rhaetian, Upper Triassic; MNHN.F. F63255 View Materials • 1 broken RV, 5 broken LV; same locality as for preceding but samples CM31A, CM13B and CM31C; Rhaetian, Upper Triassic; MNHN.F. F63355 View Materials .
Dimensions
RV: L = 584 µm; H = 373 µm; H/L = 0.64.
LV: L = 615–678 µm; H = 405–454 µm; H/L = 0.66–0.67.
Occurrence
Rhaetian, Late Triassic, Zlambach Formation, Hallstatt, Salzberg, Upper Austria, Austria ( Kollmann 1960, 1963; Bolz 1969; Zorn 2010); Austria, Rhaetian, Upper Triassic ( Urlichs 1972); K̂ssen Formation, Northern Calcareous Alps, Tyrol, Austria, Rhaetian, Upper Triassic ( Mette & Mohtat-Aghai 1999); Romanian Continental Shelf, Black Sea, Rhaetian, Upper Triassic (this paper).
Remarks
The present record is the first known occurrence of Lobobairdia salinaria outside of Austria. This species appears to be typical for the Rhaetian of Western Europe. It is mentioned as part of the Aegean, Lower Anisian, Middle Triassic assemblage of the North Dobrogean Orogen ( Sebe et al. 2013). However, such an early occurrence prescribes extreme care as it would extend the range of this species to more than 40 Ma. Because this specimen was not illustrated, we consider this Middle Triassic occurrence as invalid.
Bolz (1969) plotted the dimensions of 169 specimens of Lobobairdia salinaria and identified five ontogenetic stages, from A-4 to adult. The only complete RV obtained from the present analysis corresponds to an A-1 stage based on the ranges provided by Bolz (1969). Conversely, the three LV correspond to the A-2 stage as defined by Bolz (1969). The largest LV shown in Fig. 9M View Fig bears a drill hole, which is described in the discussion chapter.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
Kingdom |
|
Family |
Lobobairdia salinaria Kollmann, 1963
Forel, Marie-Béatrice & Grădinaru, Eugen 2020 |
Ptychobairdia
Kollmann 1960 |