First report of ostracods (Crustacea) associated with Bithynian (Anisian, Middle Triassic) Tubiphytes‐microbial reef in the North Dobrogean Orogen (Romania)

Abstract

The Mahmudia Quarry is located in the North Dobrogean Orogen (Romania)

Digging into the ancestral stocks of Jurassic lineages: ostracods (Crustacea) from Carnian (Late Triassic) sponge mounds from the Maantang Formation (South China)

“…Remarks. The present species is close to Bairdia maantangensis Xie in Wei et al, 1983 from the Norian, Late Triassic of Kuahongdong Formation, Sichuan Province, South China (Wei et al, 1983) (Forel and Grădinaru, 2018) from which it differs by a more rounded AVB and a horizontal DB. Bairdia sp.…”

“…However, their Middle and Late Triassic record is strongly biased towards the European Tethys (e.g. Gümbel, 1869;Kollmann, 1960Kollmann, , 1963Kristan-Tollmann, 1969, b, 1978Kozur, 1970aKozur, , b, 1971aBolz, 1971a, b;Bunza and Kozur, 1971;Urlichs, 1972;Kozur et al, 1974;Lieberman, 1979;Kolar-Jurkovsek, 1988/89, 1990Kristan-Tollmann et al, 1991a, b;Bizzarini, 1993;Crasquin-Soleau and Grădinaru, 1996;Crasquin-Soleau et al, 2000;Tóth, 2013, 2014;Sebe et al, 2013;Mette et al, 2014;Tóth and Monostori, 2015;Crasquin et al, 2018;Forel and Grădinaru, 2018). Although a number of assemblages from Alaska (Sohn, 1964(Sohn, , 1987, Australia (Kristan-Tollmann, 1986;Dépêche and Crasquin-Soleau, 1992; Kristan-Tollmann and Gramann, 1992), China (Zheng, 1976;Ye et al, 1977;Kristan-Tollmann, 1983;Wei et al, 1983;Guan, 1985), India (Pant and Azmi, 1981;Goel et al, 1984;Kristan-Tollmann and Gupta, 1988); Indonesia (Kristan-Tollmann et al, 1987;Kristan-Tollmann and Hasibuan, 1990), Iran (Kristan-Tollmann et al, 1979<...>…”

Middle Triassic (Anisian, Bithynian) gastropods from North Dobrogea (Romania) and their significance for gastropod recovery from the end‐Permian mass extinction event

“…, ). Regarding microinvertebrates, the first reported ostracod assemblage in the level 114 from the Tubiphytes ‐microbial limestones in Mahmudia quarry is also outstandingly rich and diverse, with 56 ostracod species, of which 10 species are newly described, distributed among 23 genera (Forel & Grădinaru ).…”

“…, p.141, fig. 11.5; Shevyrev ; Mietto & Manfrin ) of both gastropod assemblages is documented by a rich and diverse ammonoid fauna (Forel & Grădinaru ; E. Grădinaru, in prep. )…”

Carnian (Late Triassic) ostracods from the Sorgun Ophiolitic Mélange (Southern Turkey): Taxonomy, palaeoenvironment, and evidence of predation

“…Palaeozoic-Mesozoic (panchronic) taxa are represented by 10 species: eight Bairdia species and two Bairdiacypris species. Acratia is the only Palaeozoic-Mesozoic genus, which is a common component of both deep and neritic water assemblages in the Early-Middle Triassic (e.g., Kozur, 1970b;Kristan-Tollmann, 1991;Forel and Crasquin, 2011;Forel, 2012;Forel and Grădinaru, 2018) and in the Carnian as well (Forel et al, 2017;Crasquin et al, 2018). Therefore, the G11 assemblage clearly differs from the assemblage of the slightly older Kilek section (Tetraporobrachia haeckeli radiolarian Zone) at the Tavusçayiri Block, where Palaeozoic taxa are abundant, witnessing a deep-sea refuge for Palaeozoic taxa up to the Carnian (Forel et al, 2017).…”