Current issue – Volume 93 / 2018 / 3

A candidate stem-group rossellid (Porifera, Hexactinellida) from the latest Ordovician Anji Biota, China
BOTTING JP, ZHANG Y, MUIR LA, Bulletin of Geosciences, Vol 93, No 3, pages 275 - 285
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Scratch circles from the Ediacaran and Cambrian of Arctic Norway and southern Africa, with a review of scratch circle occurrences
JENSEN S, HÖGSTRÖM AES, ALMOND J, TAYLOR WL, MEINHOLD G, HØYBERGET M, EBBESTAD JOR, AGIĆ H, PALACIOS T, Bulletin of Geosciences, Vol 93, No 3, pages 287 - 304
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On the ichnofossil Treptichnus pedum: inferences from the Nagaur Sandstone, Marwar Supergroup, India
SHARMA M, AHMAD S, PANDEY SK, KUMAR K, Bulletin of Geosciences, Vol 93, No 3, pages 305 - 325
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An epiphytacean-Girvanella (Cyanobacteria) symbiosis from the Cambrian (Series 3, Drumian) of North Greenland (Laurentia)
PEEL JS, Bulletin of Geosciences, Vol 93, No 3, pages 327 - 336
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Prokopius, a new name for “Hippocystis sculptus” Prokop, 1965, and the status of the genus Hippocystis Bather, 1919 (Echinodermata; Diploporita)
PAUL CRC, Bulletin of Geosciences, Vol 93, No 3, pages 337 - 346
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Distribution and significance of rare earth elements in Cenomanian-Turonian phosphate components and mudstones from the Bohemian Cretaceous Basin, Czech Republic
AL-BASSAM K, MAGNA T, Bulletin of Geosciences, Vol 93, No 3, pages 347 - 368
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Response of organophosphatic brachiopods to the mid-Ludfordian (late Silurian) carbon isotope excursion and associated extinction events in the Prague Basin (Czech Republic)
MERGL M, FRÝDA J, KUBAJKO M, Bulletin of Geosciences, Vol 93, No 3, pages 369 - 400
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Lituitid cephalopods from the Middle Ordovician of Bohemia and their paleobiogeographic affinities
AUBRECHTOVÁ M, TUREK V, Bulletin of Geosciences, Vol 93, No 3, pages 401 - 417
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