Bradyodont sharks in the Permian of Western Australia

The first microfossil record of ichthyofauna from the Naujoji Akmene Formation (Lopingian), Karpenai Quarry, northern Lithuania

“…Also, Helodus sp. fragments have been found in Perm ian de pos its of West Aus tra lia (Teichert, 1943).…”

Permian basinal ammonoid sequence in Nanpanjiang area of South China—possible overlap between basinal Guadalupian and platform-based Lopingian

“…Comparing three wellknown species (P. gigs [Smith, 1927], P. simile Teichert, 1944, andP. irianense Glenister, Glenister, andSkwarko, 1983), the specimen herein probably represents the most progressive in sutural development, because the third external 'lateral' lobe is compeletely differentiated as an independent lobe beyond the umbilical shoulder.…”

“…Family Metalegoceratidae Plummer andScott, 1937 Subfamily Metalegoceratinae Plummer andScott, 1937 Genus Pseudoschistoceras Teichert, 19441927Smith, p. 30 (part Remarks.-The narrow prongs of the ventral lobe and three pairs of 'lateral' lobes exposed beyond the umbilical shoulder indicate the genus Pseudoschistoceras. Comparing three wellknown species (P. gigs [Smith, 1927], P. simile Teichert, 1944, andP.…”

“…Suborder Otoceratitina Hyatt, 1900? Superfamily Otoceratoidea Hyatt, 1900Family Araxoceratidae Ruzhentsev, 1959 Genus Eoaraxoceras Spinosa, Furnish, and Glenister, 19701944.…”

The first record of Helicoprion Karpinsky (Helicoprionidae) from China

“…Helicoprion was first reported from the Ural Mountains area by Karpinsky in 1899 [1] . Afterwards, this kind of fantastic shark fossils were successively found in California, Nevada [2] , south-east Idaho [3] and West Texas [4,5] of United States of America, northern Wandagee Mountain of western Australia [6] , Canadian Rocky Mountains, western Canada, and Canadian Arctic archipelago [7,8] , Puebla of Mexico [9] and others area [2,6] , except for South America and Africa. Helicoprion was regarded as one of the most important fossils in subdivision and correlation of the middle part of the Lower Permian on a global scale.…”