Palynology最新文献

{"title":"A Simple Method for the Recovery of Palynomorphs from Rock Gypsum and Rock Anhydrite","authors":"Curtis R. Klug","doi":"10.1080/01916122.2022.2158956","DOIUrl":"https://doi.org/10.1080/01916122.2022.2158956","url":null,"abstract":"ABSTRACT A method for the relatively fast, inexpensive, and safe dissolution of rock gypsum and rock anhydrite for the recovery of palynomorphs is described. Rock gypsum and rock anhydrite deposits are widely distributed geographically and throughout the geologic column. They represent deposition under environmental conditions unlike those of most other rock types. Consequently, palynomorphs and other microfossils recovered from these rocks may present unique paleontological and biostratigraphic insights not provided by other strata. Despite their relatively high solubility, rock gypsum and rock anhydrite tend to be difficult to process and do not yield to typical palynological methods. Consequently, potentially important sequences of sulfate rocks may be largely neglected in palynological investigations. The method described herein utilizes gently boiling dilute (10%) hydrochloric acid (HCl) and will completely dissolve 25 grams of rock gypsum in approximately 1.5hours. Rock anhydrite can be similarly treated but takes substantially longer than gypsum to completely dissolve. Important aspects of the process include boiling HCl at or near 102°C, a beaker without a pouring spout but with a loose-fitting cover to reduce evaporation, and quenching of the hot solution in cool, filtered water to prevent reprecipitation of the dissolved calcium sulfate. The size of the rock fragments treated by this process also appears to be of importance with larger pieces of gypsum but smaller pieces of anhydrite producing the best results. Palynomorphs recovered by this method show no apparent deterioration of the exines. In addition to palynomorphs (spores, pollen, dinoflagellates, etc.), the method also resulted in the recovery of other acid insoluble fossils such as foraminiferal test linings, scolecodonts, arthropod fragments and diatoms as well as amorphous inorganic material and acid insoluble minerals. The method is also safe as long as appropriate precautions are taken.","PeriodicalId":54644,"journal":{"name":"Palynology","volume":" ","pages":"1 - 7"},"PeriodicalIF":1.5,"publicationDate":"2022-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45579911","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}

{"title":"Palynological Recovery of Small Carbonaceous Fossils (SCFs) Indicates That the Late Cambrian Acritarch Goniomorpha Yin 1986 Represents the Teeth of a Priapulid Worm","authors":"Long Shan, T. Harvey, Kui Yan, Jun Li, Yuandong Zhang, T. Servais","doi":"10.1080/01916122.2022.2157504","DOIUrl":"https://doi.org/10.1080/01916122.2022.2157504","url":null,"abstract":"ABSTRACT New palynological studies from the Xiaoyangqiao section (Jilin Province, north-east China), which has been selected as an Auxiliary Boundary Stratigraphic Section and Point (ASSP) for the base of the Ordovician, confirms the presence of Goniomorpha Yin 1986 in intervals ranging from the late Cambrian (Furongian) to the Early Ordovician (Tremadocian), and allow us to clarify its morphology and affinities. Despite being compared originally to vesicular microfossils with processes arising from one pole, Goniomorpha lacks an enclosed cavity, so it cannot be classified as an acritarch in the strict sense. Instead, we find that the specimens originally described as Goniomorpha are actually part of a wider spectrum of morphologies that are identifiable as the pharyngeal teeth of priapulid worms. The best-preserved specimens resolve the ‘processes’ as denticles arising from an arch on the margins of a cuticular pad, sometimes with an extending spur and polygonal microstructure. Closely equivalent forms have been reported from Cambrian assemblages of small carbonaceous fossils (SCFs) and in situ on Burgess Shale specimens of the priapulid Ottoia. The findings from the Xiaoyangqiao section extend the taphonomic range of Cambrian-type SCFs into the Ordovician, and provide the first evidence for priapulids from the Ordovician of northern China. More generally, our results demonstrate the reciprocal insights from palynological and SCF-type processing for identifying problematic microfossils.","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"47 1","pages":"1 - 11"},"PeriodicalIF":1.5,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42577562","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}

{"title":"A Diverse Early Devonian Palynoflora from the Waxweiler Lagerstätte (Klerf Formation, Rhenish Massif, Western Germany): Palaeobotanical Implications","authors":"P. Steemans, Nisan Sariaslan, B. Cascales‐Miñana, M. Langer, Wilfried Meienbrock, T. Servais","doi":"10.1080/01916122.2022.2150904","DOIUrl":"https://doi.org/10.1080/01916122.2022.2150904","url":null,"abstract":"ABSTRACT The Lower Devonian Klerf Formation is an exceptional Konservat-Lagerstätte, exposed at multiple sites in the Waxweiler region in the Eifel area, western Germany. It has been studied for its various fossils, mainly arthropods, fishes, plants, molluscs, brachiopods and crinoids. At Waxweiler, the strata are palaeoecologically interpreted as a prograding deltaic depositional system elongate from NW to SE in the Ardenno-Rhenish area. The Klerf Formation has, however, not been studied in full in terms of its microflora and microfauna. Our study of the formation from two different quarries in the Waxweiler area yielded fairly diverse miospore assemblages dominated by abundant organic matter in varying degrees of coalification. The miospore assemblages are mainly composed of classic Lower Devonian taxa of the Old Red Continent (Laurussia). These belong, among others, to the genera Ambitisporites, Apiculiretusispora and Retusotriletes. Biostratigraphically more important species recovered include Acinosporites lindlarensis, Apiculiretusispora brandtii, Cymbosporites asymetricus, Diatomozonotriletes franklinii, Emphanisporites annulatus, Verruciretusispora dubia and Verrucosisporites polygonalis. In addition, Emphanisporites foveolatus, which is known only from a limited area in the Ardenno-Rhenish region, is also identified, indicating an earliest Pragian to middle Emsian age for the composite section. These assemblages are found to be accompanied by reworked phytoplankton to a much lesser extent. Our results reveal a much larger palaeobotanical diversity from the Rhineland outcrops than previously known, indicating a well-developed Psilophyton-type vegetation with related plants. The results further suggest a likely presence of plants such as Leclercqia and Pertica.","PeriodicalId":54644,"journal":{"name":"Palynology","volume":" ","pages":"1 - 10"},"PeriodicalIF":1.5,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48661373","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}

{"title":"Determining if Honey Bees (Apis mellifera) Collect Pollen from Anemophilous Plants in the Uk","authors":"M. Pound, R. Vinkenoog, Sarah Hornby, Jonty Benn, Shannon Goldberg, Barbara Keating, Flora Woollard","doi":"10.1080/01916122.2022.2154867","DOIUrl":"https://doi.org/10.1080/01916122.2022.2154867","url":null,"abstract":"ABSTRACT Whether insect pollinators use wind-pollinated plants have implications for insect monitoring and conservation strategies in a wide range of environments. Habitats, such as coniferous plantations and arable crops of the Poaceae family are not typically considered priority for the monitoring of insect pollinators or habitat enhancement. Further many pollinator monitoring techniques focus on flowers and do not count insect interactions with wind-pollinated plants. Using two honey bee colonies from distinct environments (urban and rural) in north east England, we investigate the use of wind-pollinated plants over the summer of 2021. We combine honey bee pollen pellet analysis with airborne pollen sampling to investigate whether honey bees use three common wind-pollinated plant groups (Pinus sp., Plantago sp. and Poaceae) that have previously been considered sources of forage. Our results show that honey bees do forage on Plantago and Poaceae pollen, in line with previous studies. However, we show statistically that Pinus pollen is contamination from the atmosphere and not actively collected. It is important to consider airborne contamination before making interpretations based on small amounts of pollen in samples of bee products. The use of members of the Poaceae has implications for insect pollinator monitoring in urban environments, which has not always been considered in past studies.","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"47 1","pages":"1 - 7"},"PeriodicalIF":1.5,"publicationDate":"2022-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44867250","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}

{"title":"Taxonomic Significance of Microspores in Some Selected Species of the Family Selaginellaceae from Arunachal Pradesh, India","authors":"Khencha Aran, Priti Giri, Himu Roy, P. Uniyal","doi":"10.1080/01916122.2022.2156632","DOIUrl":"https://doi.org/10.1080/01916122.2022.2156632","url":null,"abstract":"ABSTRACT The microspores morphology of 18 species of Selaginellaceae found in Arunachal Pradesh, North East India, is studied using light microscopy and electron microscopy. Of the 18 taxa examined here, the study of five taxa is attempted for the first time using an electron microscope. The species studied exhibit variation in size, shape, color and ornamentation of the microscpores. The equatorial diameter ranges from 11 to 57 µm. The tetrad form of the microscpores is recorded in four species. The variations in the microscpores ornamentation within the species of the family are useful in identification, classification and taxonomic distinction of the species. An identification key is provided for the species under study. This research is beneficial for the enumeration of basic information of microspores of the family and for the precise identification of Selaginella species. Statistical analysis of the distal and proximal surface ornamentation of the microspores is also provided.","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"47 1","pages":"1 - 16"},"PeriodicalIF":1.5,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48835544","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}

{"title":"Taxonomical Relations of Tribe Lilieae (Liliaceae) Based on palynological Issues","authors":"Mehdi Heidarian, S. Masoumi","doi":"10.1080/01916122.2022.2155720","DOIUrl":"https://doi.org/10.1080/01916122.2022.2155720","url":null,"abstract":"ABSTRACT Pollen micromorphology and ultrastructure of fifteen species from the genera Cardiocrinum, Fritillaria, Lilium, and Notholirion were examined by Light Microscopy (LM), Scanning Electron Microscopy (SEM), and Transmission Electron Microscopy (TEM). Our results showed that all quantitative characters of pollen micromorphology (LM and SEM observation) varied in the studied taxa. Pollen grains in all studied species were oblate except Notholirion bulbuliferum with oblate-spheroidal. The studied species of Fritillaria had medium pollen type and the rest showed large. Although, two major exine ornamentation in central region of equatorial surface and sulcus margin region were seen such as reticulate (taxa of Cardiocrinum) and reticulum-cristatum (taxa of genera of Lilium, and Notholirion). These characters were varied in taxa of Fritillaria in both regions (foveolate-rugulate, reticulate and foveolate). Also, there were three sulcus membrane ornamentation including striate-tuberculate (Fritillaria gibbosa), tuberculate (Lilium lophophorum and with the rest studied taxa of Fritillaria), and macrotuberculate (the genera Cardiocrinum, Lilium, and Notholirion). Moreover, three kinds of lumina types and two kinds of muri types were detected among these taxa. The qualitative and quantitative characters of the pollen wall were varied such as kind of endexine situation, number of intine layers in the sulcus membrane region, and thickness of elements from the pollen wall. Dendrogram of all qualitative and quantitative palynological characters constructed two pollen groups, five pollen types, and four pollen subtypes. The palynological dendrogram verified that Nomocharis is part of genus Lilium. Palynological types supported the heterogeneous phylogenetic situation of Cardiocrinum. Palynological subtypes were partly valuable in delimitation of sectional levels of the genus Lilium.","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"47 1","pages":"1 - 23"},"PeriodicalIF":1.5,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44445255","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}

{"title":"An Evaluation of the Process of Peer Review","authors":"J. Riding","doi":"10.1080/01916122.2022.2151052","DOIUrl":"https://doi.org/10.1080/01916122.2022.2151052","url":null,"abstract":"The system of pre-publication editorial peer review (normally known simply as peer review or the referee system) has been used to critique, and hence improve, draft academic manuscripts, and documents such as book proposals, internal corporate reports, research grants and teaching materials for many years. In summary, the submitted documents are sent to one or more carefully selected experts (peers), who are asked to read and comment critically on them. In particular, but not exclusively, reviewers are asked to point out any unjustified claims, improper interpretations and extraneous results to the editors. The reviewer reports help the editors reach a decision as to whether the manuscript should be published, with or without revisions, or not at all. All researchers who have a track record in a certain discipline may be asked to undertake peer reviews. A peer review of a submitted scholarly manuscript is used in two ways. One by the author to improve their nascent work, and secondly by the editors to arrive at a decision (i.e. accept, revise or decline) on submitted manuscripts. There is a very large body of literature on all aspects of the peer review process (e.g. Kassirer and Campion 1994; Rowland 2002; Ware 2008; Ali and Watson 2016). Many of these papers are in journals on the life and medical sciences. This body of literature also includes entire textbooks such as Wager et al. (2002), Hames (2007) and Barczak and Griffin (2021). Recently there has been a tendency for studies on this topic to use experimental techniques, statistical analysis and survey data to analyse the effectiveness of the process (e.g. Fox et al. 2016; Wicherts 2016; Gaudino et al. 2021). In this short article I will review the peer review system, look at the criticisms of it, review how it works in practice, then go on discuss what makes a good review from the perspective of both authors and editors. The piece is principally aimed at helping early career researchers (ECRs) in palynology to understand this procedure, deal with peer reviews of their manuscripts, and guide them when they receive their first review requests.","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"47 1","pages":"1 - 8"},"PeriodicalIF":1.5,"publicationDate":"2022-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43365346","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}

{"title":"Biostratigraphy and Palaeogeographic Implications of Ordovician and Silurian Chitinozoa from the High Zagros Mountains, Northern Persian Gulf, Iran","authors":"M. Ghavidel-syooki","doi":"10.1080/01916122.2022.2149631","DOIUrl":"https://doi.org/10.1080/01916122.2022.2149631","url":null,"abstract":"ABSTRACT A siliciclastic succession is exposed at the Faraghan mountain, northern Persian Gulf, southeastern Iran. A detailed, high-resolution palynological analysis was performed on the Zardkuh, Seyahou, Dargaz, and Sarchahan formations to verify the exact age and palaeogeographic position of the High Zagros Mountains. Two hundred surface samples from this succession were collected and analysed. Most samples yielded abundant and well-preserved chitinozoans, acritarchs, scolecodonts, and cryptospores. Fifty-three chitinozoan species (21 genera) were identified that permitted to establish the Eremochitina brevis, Desmochitina ornensis, Belonechitina henryi, Siphonochitina formosa, Belonechitina robusta, Tanuchitina fistulosa, Acanthochitina barbata, Armoricochitina nigerica, Ancyrochitina merga, Tanuchitina elongata, Spinachitina oulebsiri, and Spinachitina fragilis biozones in ascending stratigraphic order as was previously established for the North Gondwana Domain. These results indicate that the Zagros Mountain Belt of Iran was part of the North Gondwana palaeo-province during the Ordovician-Silurian. On the other hand, these chitinozoan biozones and other associated fauna (e.g. graptolites, trilobites, brachiopods, and conodonts) suggest a late Early Ordovician (Floian) to Early Silurian (Rhuddanian) age range, with unconformities, for this succession. Based on chitinozoan biozones, a distinctive hiatus is present between the Zardkuh and Seyahou formations at Faraghan mountain, which corresponds to the absence of jenkinsi-tanvillensis chitinozoan biozones, encompassing the latest Middle Ordovician (latest Darriwilian: stage slice Dw3) and the early Late Ordovician (Sandbian: the stage slices Sa1 to Sa2 and time slices 5a to 5b). Two chitinozoan species were erected: Belonechitina bifurcaspina sp. nov., Angochitina persianense sp. nov., and Eremochitina cf. brevis was left in open nomenclature. HIGHLIGHTS Siliciclastic deposits of the Faraghan mountain yielded rich chitinozoan assemblages. Fifty-three identified chitinozoan species resulted in 12 chitinozoan biozones. Kerogenous black shales contain both the S. oulebsiri and N. persculptus biozones. A hiatus was identified, corresponding to the Dw3 and Sa1–Sa2 stage slices. Two new taxa: B. bifurcaspina and A. persianense, are proposed.","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"47 1","pages":"1 - 32"},"PeriodicalIF":1.5,"publicationDate":"2022-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41838472","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}

{"title":"Reply to: Comments on Mertens et al. (2022): The Taxonomic Identity of Micracanthodinium setiferum (Lohmann) Deflandre (Dinophyceae Incertae sedis) Remains Elusive, and Its Epitypification is Not Achieved","authors":"K. Mertens, M. C. Carbonell-Moore","doi":"10.1080/01916122.2022.2148304","DOIUrl":"https://doi.org/10.1080/01916122.2022.2148304","url":null,"abstract":"Gottschling et al. (2022) remarked that in our attempt to epitypify the dinoflagellate Micracanthodium setiferum (Lohmann) Deflandre we did not report images of the setae, and that we ‘did not show or mention the characteristic number and arrangement of the setaeʼ. Although it is correct that no images were shown of these setae in light microscopy, we did mention that there are two kinds of cells and we noted the arrangement of the setae and its importance for its identification:","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"47 1","pages":"1 - 3"},"PeriodicalIF":1.5,"publicationDate":"2022-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47949995","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}

{"title":"The Palynology of the Permian Succession in the CSDP-2 Well, South Yellow Sea, China","authors":"Xing-Kai Ji, Xingwei Guo, Ni Yang, J. Bek, Ting Nie, Huijuan Lu, Honghe Xu","doi":"10.1080/01916122.2022.2142860","DOIUrl":"https://doi.org/10.1080/01916122.2022.2142860","url":null,"abstract":"ABSTRACT The fully cored CSDP-2 Well, drilled in the central uplift region of the South Yellow Sea, China, provides indispensable and very significant research opportunities to understand the evolution of life, paleoclimate, paleogeography, and tectonics during the Permian in the South Yellow Sea area of the Yangtze paleoblock. We here analyze 118 samples from 893.7 to 1798.8 m depth of the CSDP-2 borehole core and recognize three Permian palynological assemblages, Laevigatosporites minimus – Florinites florini (MF) for the Kungurian mid-lower Qixia Formation, Crucisaccites quadratoides – Limitisporites rhombicorpus (QR) for the Capitanian lower Longtan Formation and Macrotoispora media –Anticapipollis tornatilis (MT) for the Wuchiapingian upper Longtan Formation, in an ascending order. These palynological assemblages indicate a warm and semi-humid rainforest paleoenvironment and a drying tendency of the paleoclimate. The present study area belongs to the Yangtze paleoblock in paleogeography and is a part of the Cathaysia flora based on mega-plant fossil records. However, our palynological assemblages show similarities to those of both South China and North China subzones and, especially, their pollen contents with arid coniferous affinities highly similar to those in the north part of the South China subzone. The presence of conifers might suggest a more arid climate in the North China subzone had started to affect the Yellow Sea area in the Lopingian (Permian).","PeriodicalId":54644,"journal":{"name":"Palynology","volume":"47 1","pages":"1 - 17"},"PeriodicalIF":1.5,"publicationDate":"2022-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48790169","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}