Middle Cenomanian coral fauna from the Roßsteinalmen (Northern Calcareous Alps, Bavaria, Southern Germany) – a revised and extended version Author Löser, Hannes Estación Regional del Noroeste, Instituto de Geología, Universidad Nacional Autónoma de México, Blvd. Luis Donaldo Colosio S / N y Madrid, 83250 Hermosillo, Sonora, Mexico Author Werner, Winfried SNSB – Bayerische Staatssammlung für Paläontologie und Geologie and GeobioCenterLMU, Richard-Wagner-Strasse 10, D- 80333 München, Germany Author Darga, Robert Naturkunde- und Mammut-Museum Siegsdorf, Auenstraße 2, D- 83313 Siegsdorf, Germany text Zitteliana 2023 2023-12-20 97 89 147 journal article 10.3897/zitteliana.97.113796 D4564419-3213-4D38-96BB-E7CFE157E0F8 Heliopora lindstroemi ( Remeš, 1898 ) Plate 14: figs 6, 7 1862 Chaetetes radians – Roemer: 617. * 1898 Polytremacis Lindströmi n. sp. – Remeљ: 7, pl. 1, figs 1 a – c. Material. LFU 8336 SG 015125 # 1; one thin section. Dimensions. ( LFU 8336 SG 015125 # 1).
- n min – max µ s cv µ ± s
clmin 13 0.99–1.43 1.20 0.11 8.9 1.09–1.31
clmax 13 1.16–1.56 1.40 0.12 8.8 1.28–1.52
septa 4 18–20 19.0 0.82 4.3 18–20
Remarks. The type material of this species is very probably based on specimens that were first reported by Roemer (1862) as ” Chaetetes radians ” from Carboniferous glacial drift material. The name ” Chaetetes radians ” was solely mentioned, without giving a description or illustration. Remeš (1898) has, therefore, the priority. Other occurrences. Upper Albian of the European Boreal ( UK ), Turonian of the European Boreal ( Poland ), Coniacian of the Central Tethys ( Austria ), Danian of the European Boreal ( France ). Measurements of the Heliopora species in the studied fauna.
Clmax (mm) Clmin (mm) Septa species
0.38–0.5 0.33–0.45 12–16 sp. 1
0.56–0.65 0.52–0.62 13–16 ramosa
0.68 – 0.81 0.6–0.74 13–16 urgonensis
0.86 – 0.95 0.75–0.89 14–16 somaliensis
1.11 – 1.34 1.02–1.2 18–22 radiata
1.27 – 1.48 1.18–1.35 19–23 sp. 2
1.28–1.52 1.09–1.31 18–20 lindstroemi
1.47 – 1.74 1.32–1.56 24–26 sp. 3
(1–3) Aulastraeoporidae indet. 2, LFU 8336 SG 015115 # 1. 1 . Transversal thin section. 2 . Transversal thin section, detail. 3 . Longitudinal thin section. (4–6) Kozaniastrea sp. , BSPG 2016 XXII 2. 4 . Transversal thin section. 5 . Transversal thin section, detail. 6 . Longitudinal thin section. (7–8) Enallhelia octasepta sp. nov. 7 . Holotype LFU 8336 SG 015215 # 1, Transversal thin section. 8 . Paratype LFU 8336 SG 015215 # 2, Longitudinal thin section. Scale bars: 1 mm. (1–3) Stylina arborea d’Achiardi, 1880 . BSPG 1991 X 44. 1 . Transversal thin section. 2 . Transversal thin section, detail. 3 . Longitudinal thin section. (4–6) Stylina sp. , BSPG 1947 XVI 35. 4 . Transversal thin section. 5 . Transversal thin section, detail. 6 . Longitudinal thin section. (7–9) Eosiderastrea sp. , LFU 8336 SG 015227 # 3. 7 . Transversal thin section. 8 . Transversal thin section, detail. 9 . Oblique thin section. (10–11) Moltkia sp. , MB K 2983 # 1. 10 . surface. 11 . surface, detail. Scale bars: 1 mm. (1–3) Siderohelia sp. , LFU 8336 SG 015150. 1 . Transversal thin section. 2 . Transversal thin section, detail. 3 . Longitudinal thin section. (4–5) Cyathophoropsis sp. , LFU 8336 SG 015227 # 1. 4 . Transversal thin section. 5 . Transversal thin section, detail. (6–7) Heliopora lindstroemi ( Remeš, 1898 ) . LFU 8336 SG 015125 # 1. 6 . Transversal thin section. 7 . Transversal thin section, detail. Scale bars: 1 mm.