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The Lower Permian calcareous algae are revised in the Zweikofel, Zottachkopf and Trogkofel formations of the Carnic Alps (Austria–Italy border). The cyanobacteria and red algae are Nostocites, Archaeolithoporella, Renalcis, Gahkumella, Koivaella, Girvanella, Mitcheldeania, Clinortonella, Garwoodia, Parachaetetes, and Archaeolithophyllum lamellosum Wray. Among the possible Bryopsidales, Homannisiphon is emphasized, and the phylloid algae are formally assigned to the family Anchicodiaceae emend. with the tribe Anchicodiae nomen translatum synonymized with Ivanoviae, and the genera Anchicodium, Kansaphyllum, Iranophyllum, Ivanovia, Eugonophyllum, Calcipatera, and Neoanchicodium. The new and emended species of phylloid algae are Eugonophyllum magnum (Endo) emend. (synonymous with Succodium duisbergi Homann), and Calcipatera schoenlaubi n. sp. Among the Dasycladales, the tribe Anthracoporellae n. trib. is described; the epimastoporaceans are revised; and Gyroporella, Macroporella, Mizzia and Connexia are mentioned. Among the Epimastoporaceae, the genera Epimastopora, Epimastoporella, Globuliferoporella and Pseudoepimastopora are emended and re-described as Epimastopora emend., Epiastopora n. gen., Pseudoepimastopora emend., and Globuliferoporella emend. Epimastopora japonica Endo is formally designated as the type species of Epimastopora emend.; E. likana Kochansky and Herak and E. cf. izawaikensis Endo are other regional representatives of Epimastopora emend.; Globuliferoporella piai (Kordé) n. comb. emend. is proposed as type species in replacement of G. symmetrica sensu Chuvashov non Johnson; and Atractyliopsis carnica Flügel is re-assigned to Pseudoepimastopora emend. Among the Algospongia, the genera Claracrusta, Ungdarella and Efluegelia are analyzed. Flügel’s “Algen Sporen” are interpreted as desmae of sponges. Pseudovermiporellids, tubiphytids and ellesmerellids, considered here as foraminifers, are described in a second paper. Karl Krainer. Institute of Geology, University of Innsbruck, Innrain 52, A-6020 Innsbruck, Austria. Karl.Krainer@uibk.ac.at Daniel Vachard. Collegial and International Research Centre of Active Seniors (CIRCAS), 1 rue desTilleuls, 59152 Gruson, France. Daniel.Vachard@free.fr Maria Schaffhauser, Tiroler Landesmuseum, Fachbereich Erdwissenschaften, Krajnc Straße 1, 6060 Hall, Austria. M.Schaffhauser@tiroler-landesmuseen.at KRAINER, VACHARD, & SCHAFFHAUSER: YAKHTASHIAN ALGAE, CARNIC ALPS 2

Yakhtashian (Artinskian–Early Kungurian) cyanobacteria and calcareous algae from the Carnic Alps (Austria/Italy)