Mississippian Palynoflora from the Clarke River Basin, North Queensland, Australia

IF 1.2 4区 地球科学 Q3 PALEONTOLOGY Ameghiniana Pub Date : 2022-08-03 DOI:10.5710/AMGH.15.06.2022.3504
G. Playford
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Abstract

Abstract. The diverse, well-preserved spore assemblage hosted by the non-marine Lyall Formation of the Clarke River Basin in north Queensland includes many species reported previously from Mississippian strata elsewhere in Australia, together with one new genus and species (Apricasporites cancellosus) and seven additional new species (Granulatisporites commutabilis, Anapiculatisporites radiatus, Camptotriletes inaequabilis, C. suggrandis, Convolutispora inreligata, Foveosporites magnus, and Endosporites circumsaeptus). In terms of the existing palynostratigrahic zonation of Australian Mississippian successions, the palynoflora is clearly attributable to the Visean Anapiculatisporites largus Zone, first recognized in the Bonaparte Basin (northwestern Australia) and well-represented also in the Drummond Basin, east-central Queensland. However, a few constituent species are known as components of the succeeding Grandispora maculosa Zone (mid/late Visean–early Serpukhovian). This study provides confirmation of floristic affinities between Eastern and Western Gondwana during the Mississippian. Resumen. El conjunto diverso y bien conservado de esporas registrado en la Formación Lyall de la cuenca del río Clarke, en el norte de Queensland, incluye muchas especies del Mississippiano reportadas previamente en otras partes de Australia, a la vez que incluye un nuevo género y especie (Apricasporites cancellosus) y siete nuevas especies adicionales (Granulatisporites commutabilis, Anapiculatisporites radiatus, Camptotriletes inaequabilis, C. suggrandis, Convolutispora inreligata, Foveosporites magnus y Endosporites circumsaeptus). En términos de la zonación palinoestratigráfica existente de las sucesiones mississippianas de Australia, la palinoflora es claramente atribuible a la zona Anapiculatisporites largus del Viseano, reconocida por primera vez en la cuenca de Bonaparte (noroeste de Australia) y bien representada también en la cuenca de Drummond, en el centro-este de Queensland. Sin embargo, algunas especies constituyentes se conocen como componentes de la sucesiva Zona Grandispora maculosa (Viseano medio/final–Serpukhoviano temprano). Este estudio confirma las afinidades florísticas entre el este y el oeste de Gondwana durante el Mississippiano.
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澳大利亚昆士兰北部克拉克河流域的密西西比孢粉植物
摘要昆士兰北部的Clarke河流域的非海洋Lyall组中保存完好的孢子组合包括许多以前在澳大利亚其他地方的密西西比地层中报道的物种,包括一个新属和新种(Apricasporites cancellosus)和另外七个新种(Granulatisporites commutabilis, Anapiculatisporites radiatus, Camptotriletes inaequabilis, C. suggrandis, Convolutispora inreligata, Foveosporites magnus, comveosporites)。Endosporites circumsaeptus)。就澳大利亚密西西比系已有的孢粉地层带而言,孢粉区明显属于Visean Anapiculatisporites largus带,该带最早在澳大利亚西北部的Bonaparte盆地被发现,在昆士兰州中东部的Drummond盆地也有很好的代表。然而,一些组成物种被认为是后来的maculosa带(visian中晚期- serpukhova早期)的组成部分。该研究证实了东、西冈瓦纳在密西西比时期的植物区系相似性。Resumen。elconjunto diverso y conservado de esporas registrado en la Formación Lyall de la cuenca del río Clarke, en netete de Queensland,包括许多种密西西比州的报告和澳大利亚其他地区的报告,一个la vez que包括许多种新的gsameniro (Apricasporites cancellosus)和6种新的adiconales (Granulatisporites commutabilis, Anapiculatisporites radiatus, Camptotriletes inaequabilis, C. suggrandis, Convolutispora inreligata),中央孢子体magnus(内孢子体circumsaeptus)。在澳大利亚密西西比州、维塞亚诺州、波拿巴州(澳大利亚东北部)和德拉蒙德州、昆士兰州中部的三个州的连续三个州中,有三个州的 通讯通讯系统系统(zonación palinoestratigráfica)、三个州的通讯系统系统(通讯系统系统)。在禁令中,藻类物种组成部分被视为la succesiva Zona granddispora maculosa (Viseano medio/ final-Serpukhoviano temprano)的共同组成部分。Este estudio证实了自己的观点florísticas . Este Este de Gondwana durante el mississippi。
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来源期刊
Ameghiniana
Ameghiniana 地学-古生物学
CiteScore
2.50
自引率
10.00%
发文量
21
期刊介绍: Ameghiniana is a bimonthly journal that publishes original contributions on all disciplines related to paleontology, with a special focus on the paleontology of Gondwana and the biotic history of the southern hemisphere. Published yearly since 1957, it has undoubtedly become the main palaeontological publication from Latin America. Ameghiniana has recently broadened its editorial board, reorganized its production process, and increased to a bimonthly frequency, which resulted in a significant decrease in the turn around time.
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