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 Polyastropsis Alloiteau, 1957 Type species. Polyastropsis arnaudi Alloiteau, 1957 . Description. Thamnasterioid-cerioid colony. Corallite outline irregular with corallite centres slightly depressed. Symmetry of septa irregular. Costae confluent or sub-confluent. Synapticulae occasional, mainly in the space between corallites. Columella consists of isolated trabeculae or one more solid element. Wall subcompact, made of synapticulae. Polyastreopsis differs from Thalamocaeniopsis by a poorly defined corallite outline, and a more incomplete wall.