No abstract

Members of the Ostracoda Order Palaeocopida, except for two very rare genera (Puncia and Manawa), disappeared in the stratigraphic record close to the Permian-Triassic boundary (PTB) event. Species of the genus Hollinella are often present just after the end Palaeozoic mass extinction event, in the latest Permian and earliest Triassic beds. They are one of the latest representatives of the Palaeocopida, the typical Palaeozoic straight dorsal border ostracods. The Early Triassic species are assigned by most authors to Hollinella tingi (Patte, 1935), but this assignment is incorrect. This species is present in the latest Permian and the earliest Triassic, and therefore is considered as a biostratigraphic index fossil of the postmass extinction interval. A revision of the Hollinella species from this interval is presented herein. Three Hollinella species occur in the earliest Triassic and are assigned to Hollinella panxiensis Wang 1978, Hollinella magninoda Wang 1978 and Hollinella (Hollinella) lungcamensis sp. nov. This new species of the post-PTB event and present in strata exposed in the northern part of Vietnam is described. These three species cross the PTB and H. (H.) lungcamensis is characteristic for the post extinction period (latest Changhsingian-earliest Induan).

No abstract

No abstract

Conodont faunas recovered from the upper 80 m of Late Permian limestones on the Greek island of Hydra (Idhra) include Neogondolella leveni (Kozur, Mostler, and Pjatakova), Neogondolella orientalis (Barskov and Koroleva), Hindeodus julfensis Sweet, Xaniognathus hydraensis n. sp., and Ellisonia sp. The conodonts occur with a rich assemblage of silicified brachiopods, fusulines, and other invertebrates. Diagnostic fusulines include Reichelina media Miklukho-Maklai and Palaeofusulina cf. P. prisca Deprat. The conodont and fusuline faunas are correlative with well-known faunas described from the lower part of the Ali Bashi Formation of the Djulfa region of Iran, and with similar faunas described from other regions of Central Asia. The presence of conodonts from the Neogondolella orientalis Zone of Kozur indicates that the age of the upper part of the Permian sequence on Hydra is early-middle Dzhulfian (Baisalian Substage).