Roadian–Wordian (Guadalupian, Middle Permian) global palaeobiogeography of brachiopods

Biostratigraphy constraining strontium isotopic stratigraphy and its application on the Lopingian (Late Permian)

“…87 Sr/ 86 Sr data of the Guadalupian-Lopingian Boundary (GLB) and (Nishioka et al, 1991;Toutin-Morin et al, 1992;Wooden et al, 1993;Huang et al, 2001bHuang et al, , 2008bShen and Shi, 2002;Shi et al, 2002;Heydari et al, 2003;Korte et al, 2006;Xiao et al, 2009;Jan et al, 2009;Shen et al, 2009;Hu et al, 2010;Liu et al, 2013). The paleogeographical map of Late Permian was modified after Ziegler et al (1997).…”

Dos especies nuevas de Paraconularia (Scyphozoa, Conulariidae) en la Formación Las Delicias, Pérmico Inferior–Medio de Coahuila, México

“…El Pérmico presentó un marcado provincialismo marino, especialmente durante el Pérmico temprano. Con base en la distribución de braquiópodos, Waterhouse & Boham-Carter (1975), Grunt & Shi (1997), Shi & Grunt (2000) y Shen et al (2009) reconocieron tres reinos para ese tiempo: Gondwánico, Boreal y Paleoecuatorial (Weldon & Shi, 2003). Los géneros de conuláridos que han sido reconocidos hasta ahora para el Pérmico incluyen a Notoconularia Thomas, 1969, Gondaconularia Waterhouse, 1986, Cheliconularia Waterhouse, 1986, Neoconularia Sugiyama 1942, Calloconularia Sinclair 1952, Dinoconularia Sinclair 1952, Paraconularia Sinclair, 1940, Mesoconularia Boucek, 1939y Conularia Sowerby, 1821; de este último varios ejemplares fueron reasignados al género Paraconularia.…”

“…Distribución geográfica Provincias y Reinos (Yancey, 1975) de acuerdo a Shen et al (2009). Mapa base modificado de Ziegler et al (1997).…”

“…Paleogeographic location of the species studied during the middle Permian. Biogeographic realms: I Boreal, II Paleoequatorial, III Gondwanic, and extension of the Grandiana Province (Yancey, 1975) according to Shen et al (2009). Base map modified from Ziegler et al (1997).…”

A Boreal-type brachiopod species, <i>Waagenoconcha irginae</i> (Stuckenberg), from the middle Permian (Wordian) of the South Kitakami Belt, Japan

“…However, palaeoposition of South Kitakami in the Permian is still controversial and sharply divided into two opinions; namely, South Kitakami was located (1) near South China (Yangtze) in the equatorial region (Kawamura and Machiyama, 1995;Ehiro, 1997Ehiro, , 2001Ehiro, , 2006Isozaki, 1997;Kobayashi, 1999;Wang et al, 2006;Isozaki et al, 2011;Isozaki and Kase, 2014), and (2) near North China (Sino-Korea) in the mid-latitude region of the Northern Hemisphere (Tazawa, 1992(Tazawa, , 1998(Tazawa, , 2000(Tazawa, , 2002(Tazawa, , 2007Shi et al, 1995;Shen et al, 2000Shen et al, , 2009Shen and Shi, 2004;Shi, 2006;Ueno, 2006;Kotlyar et al, 2007).…”