Pub Date : 2023-12-01DOI: 10.1080/01916122.2023.2289575
Saeed Maleki
{"title":"The life and scientific work of Ebrahim Ghasemi-Nejad (1960-2020)","authors":"Saeed Maleki","doi":"10.1080/01916122.2023.2289575","DOIUrl":"https://doi.org/10.1080/01916122.2023.2289575","url":null,"abstract":"","PeriodicalId":54644,"journal":{"name":"Palynology","volume":" 4","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138615955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-27DOI: 10.1080/01916122.2023.2288669
Deepali Thakre, B. Samant, D. Mohabey, S. Manchester, Satish Sangode
{"title":"Palynology of the uppermost Cretaceous to lowermost Paleocene Deccan volcanic associated sediments of the Mandla Lobe, Central India","authors":"Deepali Thakre, B. Samant, D. Mohabey, S. Manchester, Satish Sangode","doi":"10.1080/01916122.2023.2288669","DOIUrl":"https://doi.org/10.1080/01916122.2023.2288669","url":null,"abstract":"","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"356 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139234273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-27DOI: 10.1080/01916122.2023.2288220
T. Kasso, Annette BruunJensen, Samuel Johns, M. Roffet-Salque, Matthew J. Collins, Renée Enevold
{"title":"Beescapes - Extracting Pollen from Historical Danish Beeswax to Explore Honeybee Foraging","authors":"T. Kasso, Annette BruunJensen, Samuel Johns, M. Roffet-Salque, Matthew J. Collins, Renée Enevold","doi":"10.1080/01916122.2023.2288220","DOIUrl":"https://doi.org/10.1080/01916122.2023.2288220","url":null,"abstract":"","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"1 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139229179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-15DOI: 10.1080/01916122.2023.2284144
Pâmela Timóteo Patrício, P. Cardoso, A. P. Luizi-Ponzo
{"title":"Pollen morphology and its taxonomic potential in Stachytarpheta sect. Stachytarpheta (Verbenaceae) occurring in Brazil","authors":"Pâmela Timóteo Patrício, P. Cardoso, A. P. Luizi-Ponzo","doi":"10.1080/01916122.2023.2284144","DOIUrl":"https://doi.org/10.1080/01916122.2023.2284144","url":null,"abstract":"","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"8 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139275614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-01DOI: 10.1080/01916122.2023.2273942
Vanessa Ribeiro Matos, Maria Cristina Gaglianone
1) ABSTRACTBees are the main pollinators of terrestrial ecosystems and, among them, we can highlight oil-collecting bees, which show different morphological and behavioral adaptations associated with plants that offer this floral resource. Floral oils are used in provisioning, building, and lining the brood cell and nests. The genus Epicharis has a neotropical distribution and females are closely associated with plants of the Malpighiaceae family, with the highest number of records in species of the genus Byrsonima. However, due to the strong seasonality of adult activity and solitary behavior, knowledge about important floral resources to Epicharis bees is still scarce. In order to identify important resource sources for a widely distributed species, the current work aimed to analyze the pollen spectrum of Epicharis flava Friese in an urban area in the Atlantic Forest domain. For this, females of E. flava were captured during five days while visiting flowers of Byrsonima sericea DC. (Malpighiaceae) in an urban area, and the pollen load in their scopae was submitted to acetolysis processing for further analysis under the microscope. In total, 71 pollen types were found, with emphasis on Fabaceae, Solanaceae, Bignoniaceae, and Malpighiaceae, considered sources of nectar, pollen, and floral oils. This study made it possible, through the analysis of pollen in the scopae, to identify a list of potentially important species for the maintenance of E. flava populations. This information is necessary for the management of urban green areas, aiming at increasing biodiversity. In addition, these data can serve as a base for further research on oil-collecting bees in the Neotropics.Keywords: floral oilpollinator-plant interactionsolitary beeurban environmentDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. Additional informationNotes on contributorsVanessa Ribeiro MatosVANESSA R MATOS has a degree in Biological Sciences from the UNIJORGE, a master's degree and PhD in Botany from the State University of Feira de Santana. Has developed research at the Smithsonian Tropical Research Institute acting in the identification of pollen found in samples collected from Island Barro Colorado (Panama). Has a postdoctoral fellow at the Federal University of Mato Grosso (UFMT), conducting research on palynological identification: the modern (quaternary) and the fossil (tertiary and ancient). Currently doing a post doctorate at the Universidade Estadual do Norte Fluminense Darcy Ribeiro in the area of Applied Ecology.Maria Cristina GaglianoneMARIA CRISTINA GAGLIANONE has a degree in Biolog
{"title":"Floral resources of <i>Epicharis flava</i> (Hymenoptera, Apidae) in an urban area, detected from the pollen spectrum in the scopae","authors":"Vanessa Ribeiro Matos, Maria Cristina Gaglianone","doi":"10.1080/01916122.2023.2273942","DOIUrl":"https://doi.org/10.1080/01916122.2023.2273942","url":null,"abstract":"1) ABSTRACTBees are the main pollinators of terrestrial ecosystems and, among them, we can highlight oil-collecting bees, which show different morphological and behavioral adaptations associated with plants that offer this floral resource. Floral oils are used in provisioning, building, and lining the brood cell and nests. The genus Epicharis has a neotropical distribution and females are closely associated with plants of the Malpighiaceae family, with the highest number of records in species of the genus Byrsonima. However, due to the strong seasonality of adult activity and solitary behavior, knowledge about important floral resources to Epicharis bees is still scarce. In order to identify important resource sources for a widely distributed species, the current work aimed to analyze the pollen spectrum of Epicharis flava Friese in an urban area in the Atlantic Forest domain. For this, females of E. flava were captured during five days while visiting flowers of Byrsonima sericea DC. (Malpighiaceae) in an urban area, and the pollen load in their scopae was submitted to acetolysis processing for further analysis under the microscope. In total, 71 pollen types were found, with emphasis on Fabaceae, Solanaceae, Bignoniaceae, and Malpighiaceae, considered sources of nectar, pollen, and floral oils. This study made it possible, through the analysis of pollen in the scopae, to identify a list of potentially important species for the maintenance of E. flava populations. This information is necessary for the management of urban green areas, aiming at increasing biodiversity. In addition, these data can serve as a base for further research on oil-collecting bees in the Neotropics.Keywords: floral oilpollinator-plant interactionsolitary beeurban environmentDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also. Additional informationNotes on contributorsVanessa Ribeiro MatosVANESSA R MATOS has a degree in Biological Sciences from the UNIJORGE, a master's degree and PhD in Botany from the State University of Feira de Santana. Has developed research at the Smithsonian Tropical Research Institute acting in the identification of pollen found in samples collected from Island Barro Colorado (Panama). Has a postdoctoral fellow at the Federal University of Mato Grosso (UFMT), conducting research on palynological identification: the modern (quaternary) and the fossil (tertiary and ancient). Currently doing a post doctorate at the Universidade Estadual do Norte Fluminense Darcy Ribeiro in the area of Applied Ecology.Maria Cristina GaglianoneMARIA CRISTINA GAGLIANONE has a degree in Biolog","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135221740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-30DOI: 10.1080/01916122.2023.2277630
Duncan McLean, James B. Riding
{"title":"Roger Neves (1932–2020)","authors":"Duncan McLean, James B. Riding","doi":"10.1080/01916122.2023.2277630","DOIUrl":"https://doi.org/10.1080/01916122.2023.2277630","url":null,"abstract":"","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136069564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-24DOI: 10.1080/01916122.2023.2273267
Bradley Paine, Linda Armbrecht, Christopher Bolch, Andrew McMinn, Gustaaf M. Hallegraeff
AbstractSoutheastern Australia's marine waters are notably warming, surpassing global averages. This region has emerged as a strategic location for researching planktic microfossils, particularly dinoflagellate cysts, in modern and Late Quaternary sediments, offering crucial insights into the biophysical properties of mid-latitude waters. This study examined cyst distribution in marine sediment cores near Maria Island, Tasmania, southeastern Australia, up to 9,000 years before present (kyrs BP). Dominant cysts included Protoceratium reticulatum, Protoperidinium spp. (P. avellana, P. conicum, P. oblongum, P. subinerme, P. shanghaiense), and Spiniferites spp. (S. bulloideus, S. hyperacanthus, S. membranaceus, S. mirabilis, S. pachydermus, and S. ramosus). Inshore, Spiniferites spp. constituted a higher proportion (up to 61%), while offshore was dominated by P. reticulatum (up to 80%). Impagidinium spp. and Nematosphaeropsis labyrinthus were exclusively found offshore from ∼6 kyrs BP, suggesting a shift from shallow to deep-water habitat. Alexandrium tamarense species complex cysts were present over 140 years inshore and approaching 9 kyrs BP offshore, indicating a longstanding endemic presence. Gymnodinium catenatum cysts were detected exclusively inshore from ∼50 years ago, indicating a relatively recent bloom phenomenon.The East Australian Current's limited southward reach is suggested by the absence of warm-water cyst-producing taxa Lingulodinium polyedra. Similarly, the non-detection of cold-water species Spiniferites antarctica and Impagidinium pallidum reflects Subtropical Front boundaries against subantarctic incursions from the south. In contrast to coccolithophores in the same core, no noticeable shift from cold to warm-water dinoflagellate cyst species was observed. This documentation of dinoflagellate cysts aids in predicting environmental impacts on local communities and beyond.Keywords: PalaeoclimateOcean currentsSea level riseDinoflagellate cystsTrophic dynamicsTasmaniaAustraliaDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also.
{"title":"Dinoflagellate cyst distribution over the past 9 kyrs BP from offshore east Tasmania, southeast Australia","authors":"Bradley Paine, Linda Armbrecht, Christopher Bolch, Andrew McMinn, Gustaaf M. Hallegraeff","doi":"10.1080/01916122.2023.2273267","DOIUrl":"https://doi.org/10.1080/01916122.2023.2273267","url":null,"abstract":"AbstractSoutheastern Australia's marine waters are notably warming, surpassing global averages. This region has emerged as a strategic location for researching planktic microfossils, particularly dinoflagellate cysts, in modern and Late Quaternary sediments, offering crucial insights into the biophysical properties of mid-latitude waters. This study examined cyst distribution in marine sediment cores near Maria Island, Tasmania, southeastern Australia, up to 9,000 years before present (kyrs BP). Dominant cysts included Protoceratium reticulatum, Protoperidinium spp. (P. avellana, P. conicum, P. oblongum, P. subinerme, P. shanghaiense), and Spiniferites spp. (S. bulloideus, S. hyperacanthus, S. membranaceus, S. mirabilis, S. pachydermus, and S. ramosus). Inshore, Spiniferites spp. constituted a higher proportion (up to 61%), while offshore was dominated by P. reticulatum (up to 80%). Impagidinium spp. and Nematosphaeropsis labyrinthus were exclusively found offshore from ∼6 kyrs BP, suggesting a shift from shallow to deep-water habitat. Alexandrium tamarense species complex cysts were present over 140 years inshore and approaching 9 kyrs BP offshore, indicating a longstanding endemic presence. Gymnodinium catenatum cysts were detected exclusively inshore from ∼50 years ago, indicating a relatively recent bloom phenomenon.The East Australian Current's limited southward reach is suggested by the absence of warm-water cyst-producing taxa Lingulodinium polyedra. Similarly, the non-detection of cold-water species Spiniferites antarctica and Impagidinium pallidum reflects Subtropical Front boundaries against subantarctic incursions from the south. In contrast to coccolithophores in the same core, no noticeable shift from cold to warm-water dinoflagellate cyst species was observed. This documentation of dinoflagellate cysts aids in predicting environmental impacts on local communities and beyond.Keywords: PalaeoclimateOcean currentsSea level riseDinoflagellate cystsTrophic dynamicsTasmaniaAustraliaDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also.","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"24 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135219384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-10-24DOI: 10.1080/01916122.2023.2273940
Ali Soliman, Haytham El Atfy
ABSTRACTThis contribution marks the achievements made in the past decades by a group of palynologists. The data generated covers a long-time span from the Precambrian to the Holocene of Egypt. Previously published results are devoted primarily to the study of many exploration wells and outcrop sections. Comprehensive studies were carried out on a range of palynomorph groups including spores and pollen, algae and prasinophytes, dinoflagellates, acritarchs, scolecodonts, chitinozoans, and other miscellaneous forms as well as palynofacies. Particular attention is given to the history of palaeopalynology. This study presents three main phases. The results of the first phase were limited, as the knowledge of palynology in Egypt was poorly known from 1959 until 1979. Between 1980-2000, which represents the second or shaping phase, an intensive study of surface and subsurface material was carried out. The third phase (2000 until now) provides the academic and commercial expansion of palynological research in Egypt, where palynology can have immediate application in petroleum exploration studies.In the first phase, the application of palynology is seriously hampered by the limited extent of the published data. Only 27 works emerged by the end of 1979. A considerable acceleration could be noticed in the second phase when palynological research was established in many national institutions and started to play a considerable role in petroleum exploration. Beyond academia, some of the operating oil companies started to set up palynological labs and staff as part of biostratigraphy teams. These included, for example, GPC, Khalda Petroleum Co. with a focus on the north Western Desert, and GUPCO with a focus on the Gulf of Suez, and most of the results obtained were incorporated with the internal data on the well files. During the period 2000-2009, especially when palynofacies studies were incorporated, the progress and the attitude of palynological research changed. This allowed for a more accurate reconstruction of the depositional process and eventually a paleobiogeographic history mainly for the Cretaceous age, which is an important target for hydrocarbon exploration in Egypt. From 2010 onwards, the number of publications has clearly grown and reached 23 publications in 2020. Such a high pace of development seems to have been at the expense of basic research comprising taxonomy and biostratigraphy, something that might negatively impact the quality of research and also researchers, especially the young ones. The change brought about through this phase by integrating organic geochemistry, sedimentology, and other disciplines may, however, have left a positive impact, principally in terms of international collaborations and expansion of palynology applications beyond the standard academic cluster.Important highlights and outputs, and prospective forthcoming developments and recommendations pertaining to Egyptian palynology generally (and in each phase) are di
摘要这一贡献标志着孢粉学家在过去几十年中所取得的成就。生成的数据涵盖了从埃及前寒武纪到全新世的很长一段时间。以前发表的成果主要是对许多探井和露头剖面的研究。对一系列孢粉形态类群进行了全面的研究，包括孢子和花粉、藻类和孢粉植物、鞭毛藻、针叶虫、棘孔虫、几丁质动物和其他杂项形式以及孢粉相。特别注意的是古生物学的历史。本研究主要分为三个阶段。第一阶段的结果是有限的，因为从1959年到1979年，埃及的孢粉学知识鲜为人知。1980-2000年是第二阶段，即成形阶段，对表面和地下材料进行了深入的研究。第三阶段(2000年至今)提供了孢粉学研究在埃及的学术和商业扩展，在那里孢粉学可以立即应用于石油勘探研究。在第一阶段，孢粉学的应用受到已发表数据有限的严重阻碍。到1979年底，只出现了27部作品。在第二阶段，当孢粉学研究在许多国家机构中建立起来并开始在石油勘探中发挥相当大的作用时，可以注意到相当大的加速。在学术界之外，一些运营中的石油公司开始建立孢粉实验室和工作人员，作为生物地层学团队的一部分。其中包括GPC、专注于西北沙漠的Khalda Petroleum Co.和专注于苏伊士湾的GUPCO，获得的大部分结果都与井文件的内部数据相结合。2000-2009年，特别是加入孢粉相研究后，孢粉学研究的进展和态度发生了变化。这使得沉积过程得以更准确地重建，并最终确定白垩纪的古生物地理历史，白垩纪是埃及油气勘探的重要目标。从2010年开始，出版物数量明显增加，到2020年达到23篇。如此高的发展速度似乎是以牺牲包括分类学和生物地层学在内的基础研究为代价的，这可能会对研究质量和研究人员，尤其是年轻的研究人员产生负面影响。然而，这一阶段有机地球化学、沉积学和其他学科的整合所带来的变化可能会产生积极的影响，主要是在国际合作和将孢粉学应用扩展到标准学术集群之外。重要的亮点和产出，以及有关埃及孢粉学的未来发展和建议(在每个阶段)进行了讨论。关键词:孢粉学埃及历史注释书目免责声明作为对作者和研究人员的服务，我们提供此版本的已接受手稿(AM)。在最终出版版本记录(VoR)之前，将对该手稿进行编辑、排版和审查。在制作和印前，可能会发现可能影响内容的错误，所有适用于期刊的法律免责声明也与这些版本有关。作者简介:sali Soliman, 1995年毕业于埃及坦塔大学地质学专业。2000年，他与Salah El Beialy一起完成了埃及西部沙漠侏罗纪孢粉地层的硕士学位。2002年10月获奥地利ÖAD博士奖学金，2006年3月在W.E. Piller和M.J. Head的指导下完成了对埃及苏伊士湾中新世鞭毛藻囊肿的研究。自2006年11月起，他一直在ÖAW和FWF资助的项目中担任博士后，研究中央Paratethys和古Pannon湖中新世鞭毛类的分类和地层学。目前，阿里是埃及坦塔大学的地层学和古生物学教授。Haytham El Atfy，埃及曼苏拉大学(Mansoura University)副教授，获得地质学学士学位和孢粉学硕士学位。2014年获得德国法兰克福歌德大学地球科学(孢粉学和有机地球化学)博士学位，2022年获得德国<s:1>宾根大学(Habilitation)博士学位。自2023年起，Haytham加入德国梅恩斯特大学地质与古生物学研究所古植物学小组。他通过在埃及GUPCO (BP)的工作获得了工业孢粉学方面的经验。 Haytham自2019年起担任德国<s:1>宾根大学亚历山大·冯·洪堡基金会研究员。他最近是德国森肯堡研究所的访问科学家。他的研究兴趣涵盖孢粉学的各个方面及其在测年、古环境和古气候重建以及油气勘探方面的应用，特别是中生代和新生代，以及较小程度上的古生代。他最近开始研究有机地球化学。他是aasp -孢粉学会、微古生物学会(TMS)、Arbeitskreis f<e:1> r Paläobotanik und孢粉学会(APP)和埃及古生物学会(PSE)的成员。他获得了许多奖项，包括德国科学基金会(DFG)的Bernd Rendel奖、埃及国家激励奖和埃及总统提供的一流卓越特许权。
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Pub Date : 2023-10-18DOI: 10.1080/01916122.2023.2271086
Yan Liang, Jaak Nõlvak, Olle Hints
ABSTRACTChitinozoan investigations on the late Middle to early Late Ordovician in South China are limited. Documented chitinozoan occurrences are mainly from the Miaopo Formation on the Upper Yangtze Platform. The present study reports new data from the Miaopo Formation at the Zhenjin section in the Yichang area. In total, 13 genera and 33 species are recognised, and three new species are described: Spinachitina? coronifera sp. nov., Lagenochitina yichangella sp. nov. and Pellichitina confragosa sp. nov. The Baltoscandian index species, Laufeldochitina striata, is documented in the lowermost part of the formation. This is the first report of this species in South China. The L. striata Biozone is suggested for the basal part of the formation due to the presence of the eponymous species. The index species of the Laufeldochitina stentor Biozone, the Armoricochitina granulifera and Cyathochitina megacalix subzones adopted in the Jieling section are also observed in the Zhenjin section. However, according to the new data obtained at Zhenjin, the first appearance datum of C. megacalix and A. granulifera coincides with that of L. striata. Therefore, the C. megacalix Subzone is kept but moved to the L. striata Biozone. A. granulifera has stable occurrences in almost the entire Miaopo Formation, corresponding to the Nemagraptus gracilis graptolite biozone. It is slightly older than Baltic records but could be useful for recognising this time interval in South China.Keywords: biostratigraphyChinaChitinozoaMiddle-Late Ordovicianlatest Darriwilian to SandbiantaxonomyDisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also.
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