Bulletin of Geosciences最新文献

{"title":"Late Ordovician and early Silurian trilobites from Tasmania","authors":"D. Holloway, M. R. Banks, D. M. Banks","doi":"10.3140/bull.geosci.1868","DOIUrl":"https://doi.org/10.3140/bull.geosci.1868","url":null,"abstract":"Thirteen species of trilobites are described from two different faunas in late Katian and Rhuddanian strata respectively of the Arndell Sandstone in the Florentine Valley of southern Tasmania. The late Katian fauna includes the trinucleid Auritolithus corbetti gen. et sp. nov., the calymenids Salterocoryphe ? bailliei sp. nov. and Vietnamia hyron sp. nov., and limited material of the lichid Amphilichas ? and two indeterminate asaphids. Auritolithus , characterized by the markedly subpentagonal outline of the cephalon, cannot be assigned to any of the existing trinucleid subfamilies but seems closely related to forms occurring in the Upper Ordovician of the Precordillera Basin of Argentina. Salterocoryphe ? bailliei , the first record of a member of the Colpocoryphinae from Australia, is considerably younger stratigraphically than other occurrences of that genus in the middle to upper Darriwilian of France and the Iberian Peninsula. The Rhuddanian fauna from the Arndell Sandstone includes the illaenid Pepodes agrestis gen. et sp. nov., the scutelluid Japonoscutellum senectum sp. nov., the brachymetopid Niuchangella agastor sp. nov., the encrinurids Arndellaspis oryxis gen. et sp. nov. and Cromus ?, the calymenid Gravicalymene clarkei sp. nov. and the homalonotid Brongniartella calveri sp. nov. Niuchangella is accepted as a senior synonym of Radnoria . Arndellaspis is not closely related to other members of the Encrinurinae from Australia but shares unique derived characters of the pygidium with Encrinurus ( s.s. ) and Wallacia , occurring in Laurentia, Avalonia and Baltica, and Arndellaspis may share common ancestry with Encrinurus . The commonly broadly interpreted Gravicalymene is revised and restricted to a smaller number of closely related species from the Darriwilian to middle Telychian. The faunal affinities of the trilobites suggest links with terranes that lay along the north-western margin of Gondwana and with South America in the Late Ordovician, and with South China and possibly Laurentia in the early Silurian.","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42704564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early Silurian (mid-Sheinwoodian) palynomorphs from the Loděnice-Špičatý vrch, Prague Basin, Czech Republic","authors":"J. Bek, P. Štorch, P. Tonarová, M. Libertín","doi":"10.3140/bull.geosci.1831","DOIUrl":"https://doi.org/10.3140/bull.geosci.1831","url":null,"abstract":"Dispersed spores, cryptospores, scolecodonts, acritarchs, prasinophytes and chitinozoans, dated by graptolites as being middle Sheinwoodian (early Wenlock, ca 432 Ma), are described from the Loděnice-Špičatý vrch locality, Prague Basin, Czech Republic. Palynomorphs were macerated from a specimen (stored in the National Museum, Prague), with fragments of Cooksonia sp. and the zonal index graptolite Monograptus belophorus giving precise stratigraphic position within Monograptus belophorus Biozone. Important is the oldest occurrence of monolete spores. The number of spore taxa indicate that minimally six types of early vascular plants and probably two to three types of cryptosporophytes grew on the Svatý Jan V olcanic Island in the Prague Basin. The ecology of the first cryptospore and trilete spore producers within Sheinwoodian–Přídolí interval is discussed with special focus on first two globally important key events (after Homerian glaciation and during Přídolí) for earliest vascular land plants. The combination of palynological and palaeobotanical records confirms important role of volcanic islands of the Prague Basin for the evolution of early land plants.","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47445119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New data on conodonts and ostracods of the Katkoyeh Formation (Lower-Upper Ordovician) at the Banestan Section of East-Central Iran: biostratigraphical and palaeobiogeographical significance","authors":"Farzad Poursalehi, Gustavo, G., voldman, Ali Bahrami, M. J. Salas","doi":"10.3140/bull.geosci.1847","DOIUrl":"https://doi.org/10.3140/bull.geosci.1847","url":null,"abstract":"Ordovician marine sedimentary sequences occur in several widely separated structural blocks in Iran, along the northern margin of Gondwana. In northern Kerman Province, the Ordovician sedimentary interval is known as the Katkoyeh Formation, which encompasses ~ 70–300 m of siliciclastic rocks with scarce carbonate and thick pyroclastic beds in its upper part. Previous studies provided several ages for the Katkoyeh Formation, puzzled by the limited number of palaeontological studies, mostly based on spot samples, the presence of regional important stratigraphic gaps, and the inherent structural complexity of the area. In order to adjust the depositional time of the Katkoyeh Formation, a systematic sampling for microfossils was conducted in the Banestan Section, located about 12 km northwest of the city of Zarand, in the vicinity of the Banestan village. Based on the occurrence of important biostratigraphic species, we recorded three conodont intervals in ascending order in the Katkoyeh Formation, namely the Rossodus manitouensis/ Paltodus deltifer Concurrent Range Zone (Tremadocian, Lower Ordovician), the Juanognathus variabilis Range Zone (Floian, Lower Ordovician), and the Icriodella superba Range Zone (Katian–?Hirnantian, Upper Ordovician). The conodont biostratigraphy is discussed and analysed, improving the Ordovician intrabasinal correlation of Iran as well as correlation with distant palaeobiogeographic domains. The Upper Ordovician conodont assemblage is accompanied by two new species of ostracods: Satiellina zarandensis sp. nov. and Ceratopsis persicus sp. nov., both suggesting palaeobiogeographical affinities mainly with Gondwana and peri-Gondwanan regions. •","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44759083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New Cambrian vermiform organisms from Burgess Shale-type deposits of the western United States","authors":"J. Foster, S. Sroka, T. Howells, H. Cothren, C. Dehler, J. Hagadorn","doi":"10.3140/bull.geosci.1858","DOIUrl":"https://doi.org/10.3140/bull.geosci.1858","url":null,"abstract":"","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47233145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carboniferous limestone boulder from the Badenian clastics (Carpathian Foredeep, Czech Republic): A useful data source on the Palaeozoic of the Moravosilesian Basin","authors":"T. Weiner, H. Weinerová, M. Mergl, J. Kalvoda, R. Gregorová","doi":"10.3140/bull.geosci.1851","DOIUrl":"https://doi.org/10.3140/bull.geosci.1851","url":null,"abstract":"of the Moravosilesian Basin in Czech Republic (Fig. 1) has rarely been documented. Brachiopods have only briefly been discussed or mentioned (e.g. Rak et al. 2012) and trilobites were depicted and described by Chlupáč (1961, 1966) and Rak et al. (2012). The Palaeozoic sequences of the Moravosilesian Basin were exposed to extensive erosion. However, eroded material has been partly preserved in younger sedimentary units, mainly Variscan and Carpathian flysch and molasse sediments. The composition of basal and marginal coarse clastics deposited during the early Badenian transgression in the Carpathian Foredeep reflects the varied provenance of the source material (Brzobohatý & Cicha 1993). Krystek (1974) has recognized 14 types of rock clasts of these clastics between Brno and Prostějov. Dark grey limestone clasts have generally been considered Devonian (e.g. Šob 1940, Krystek 1974), but they have not been studied in detail. In this study, we share information obtained from a limestone boulder, showing that it is of late Tournaisian age, thereby enabling us to contribute to the discussion regarding the provenance of Badenian basal clastics. Brachiopod and trilobite fauna of this boulder proves valuable with respect to our knowledge of the Palaeozoic macrofauna of the Moravosilesian Basin.","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42731480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Calcareous tube-dwelling encrusting polychaetes from a lower-middle Miocene sedimentary succession, Cairo-Suez District, Egypt","authors":"Mona Mandor, O. Vinn, M. E. Hedeny, aHMed el, SabbagH, Abdelaal Abdelaal, MoHaMed raSHwan","doi":"10.3140/bull.geosci.1848","DOIUrl":"https://doi.org/10.3140/bull.geosci.1848","url":null,"abstract":"(e.g. Gosselin & Sewell 2013) from the Permian (Sanfilippo et al. 2017) to the present day (e.g. Rouse & Pleijel 2001). Most tube-building polychaete worms are benthic and sedentary suspension feeders (e.g. Díaz-Castañeda & Reish 2009). Serpulid-like calcareous tubes displayed a rapid diversification throughout the Jurassic and Cretaceous until the Holocene (Jäger 1983, 2004, 2012, 2014; Ippolitov 2007a, b, 2010; Sklenář et al. 2013; Ippolitov et al. 2014; Kočí & Ledvák 2014; Kočí et al. 2017). They secrete and inhabit a permanent calcareous tube that can be attached to both biogenic and inorganic hard substrates. They are most commonly found as post-mortem encrusters (e.g. Garberoglio & Lazo 2011, Sklenář et al. 2013, El-Sabbagh & El Hedeny 2016, El-Sabbagh et al. 2016, Veselská et al. 2021) but may also be colonizers of living hosts (in vivo; e.g. El Hedeny et al. 2021). Hard substrates in the modern oceans are often heavily encrusted by polychaetes. They are common in all marine settings, ranging from the intertidal down to hadal depths (e.g. Hill 2013, Ippolitov et al. 2014). In addition, they were important encrusting organisms in the geological past (e.g. El-Sabbagh & El Hedeny 2016, El-Sabbagh et al. 2016). Hence, the study of ancient representatives could provide information on palaeoecology and palaeoenvironment. Sediments of the lower‒middle Miocene succession exposed in the Cairo-Suez District yield a significant polychaete assemblage, which, together with bivalves (oysters, pectinids and others), gastropods and echinoids, constitute the characteristic fossil assemblage in that area. Other common fossils include corals and bryozoans. So far, little attention has been paid to fossil calcareous tubedwelling encrusting polychaetes in Egypt (e.g. El-Sabbagh & El Hedeny 2016, El-Sabbagh et al. 2016). Therefore, this","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44527222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New late Carboniferous chondrichthyans from the European Russia","authors":"A. Ivanov","doi":"10.3140/bull.geosci.1845","DOIUrl":"https://doi.org/10.3140/bull.geosci.1845","url":null,"abstract":"(Mississippian) of European part of Russia are common, rather diverse and have been quite well studied (Romanowsky 1864, Trautschold 1874, Khabakov 1941, Obruchev 1977, Ivanov & Ginter 1996, Lebedev 1996, and others). The chondrichthyan assemblages from the Bashkirian–Moscovian (Pennsylvanian) of this territory have also been described in many publications (e.g. Traut­ schold 1879, Khabakov 1939, Obruchev 1951, Le bedev 2001, and others). However, chondrichthyan fishes are poorly known from the Kasimovian–Gzhelian of this area. The remains of diverse chondrichthyans were re­ cently found in the Kasimovian–Gzhelian deposits of the Moscow, Samara and Volgograd regions, and in the Bashkirian–Moscovian of the Republic of Bashkortostan. The remains are represented by isolated teeth and scales of various chondrichthyan groups and mostly belong to known taxa. However, three new taxa presented by teeth occurred in these stratigraphical intervals and regions, and are described in this paper.","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42979106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Filling the gap in knowledge of early Miocene continental molluscs of southwest Europe: gastropods from Ribesalbes-Alcora Basin (Spain)","authors":"Joaquín Albesa, J. M. Lopez, Vicente, D., Crespo","doi":"10.3140/bull.geosci.1856","DOIUrl":"https://doi.org/10.3140/bull.geosci.1856","url":null,"abstract":"such as those of Vallés-Penedés, Ebro, Calatayud-Daroca, Teruel, Duero and Tajo, as well as smaller ones such as Cabriel, Fortuna, Guadix-Baza and Granada (Agustí 2018). Continental sediments of Aragonian age (end of the early Miocene to middle Miocene; mammal biozones MN4 to MN7/8) are represented in many of these basins (Agustí 2018). While mammal associations have been studied extensively in several palaeontological sites, the malacological record is comparatively poor documented. The few studies carried out on the malacological assemblages recorded in sediments today attributed to an Aragonian age are to some extent outdated (Vilanova y Piera 1859; Royo Gómez 1922, 1926, 1928; Jodot 1959). Also, many of sites and faunas documented in these works could not be precisely located. The available references accurately located and dated correspond to sites attributed to the middle Aragonian of the Tajo Basin (Truc 1977) and the upper Aragonian of the Duero Basin (González Delgado et al. 1986, Civis et al. 1989). The references from the early Aragonian are practically inexistent and correspond to isolated cites or recent multidisciplinary studies in the Ribesalbes-Alcora Basin (Peñalver et al. 2016, ÁlvarezParra et al. 2021). In line with the above, the available data on the mala cological content of the sediments of the Ribesalbes-Alcora Basin (Fig. 1A) are mostly old and very scarce. The first one corresponds to Vilanova y Piera (1859) who studied the materials in the “Balsa de Fanzaraˮ (the classical name for the Cenozoic sediments of the basin) and the nearby area of Alcalá. He cited the generic presence of “lymneasˮ, “planorbis” and “helicesˮ (Vilanova y Piera 1859: p. 44), and more specifically a single specimen of Planorbis rotundatus Brongniart, 1810 from the “Balsa de Fanzara”, which is shown on a plate alongside with four species belonging to the Alcalá area. Royo Gómez (1922) included a brief reference to the sediments of the studied area correcting the determination of Planorbis rotundatus to","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42974436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 ichnospecies Tambia gregaria (Fritsch, 1908) comb. nov. from the Upper Ordovician of Czechia","authors":"D. Knaust, R. Mikuláš, M. Mángano, Rangel Cerceau Netto, L. Buatois","doi":"10.3140/bull.geosci.1846","DOIUrl":"https://doi.org/10.3140/bull.geosci.1846","url":null,"abstract":"reconstructions (e.g. Pemberton 1992, Pemberton et al. 2001, Buatois & Mángano 2011, Knaust & Bromley 2012) and for detecting evolutionary trends (e.g. Mángano & Buatois 2016a, b). Increased interest in ichnology resulted in the description and erection of numerous ichnotaxa that allowed for their recurrent recognition and communication. However, after the compilation of the second edition of the Trace Fossils volume in the Treatise of Invertebrate Paleontology (Häntzschel 1975), the number of valid invertebrate ichnogenera has multiplied (Knaust 2012, Buatois et al. 2017). Many ichnotaxa are based on weak grounds, either due to in­ appropriate characteristics chosen as ichnotaxobases, poor preservation, single specimens, or simply overlooked synonymy. Accordingly, comprehensive ichnotaxonomic reciews are necessary for the efficient and robust applic a­ tion of ichnologic evidence. This contribution provides a taxonomic assessment of the ichnospecies Curvolithus gregarius Fritsch, 1908 from the Upper Ordovician of Czechia (see Mikuláš 1992, for previous evaluations of this ichnofauna), based on a reinvestigation of the type material and newly col­ lected specimens. In a general review of the ichnogenus Curvolithus, Buatois et al. (1998) excluded the ichno­ species C. gregarius from that ichnogenus due to the morphological discrepancy with the diagnostic features of Curvolithus. These authors also noted similarities of the type material of C. gregarius with other scratched trace fossils supposedly produced by arthropods, such as Tam bia and Monomorphichnus. However, no formal ichno taxo ­ n omic decision was made at that time, and the ichno­ taxon omic status of this ichno species was left indeterminate. Here, we formally include C. gregarius in Tambia Müller, 1969 as T. gregaria comb. nov. In addition, we briefly revise other ichnotaxa described by Fritsch (1908) that are related to T. gregaria. This study is part of an overall examination of historical trace­fossil collections and ichnotaxonomic re­evaluation of the collection of Fritsch (1908) at the National Museum in Prague, Czechia.","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42257751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phacopid trilobites in post-Taghanic Givetian through Frasnian cephalopod limestones, Montagne Noire (France) and related areas (Thuringia, Morocco)","authors":"R. Feist, G. Klapper","doi":"10.3140/bull.geosci.1834","DOIUrl":"https://doi.org/10.3140/bull.geosci.1834","url":null,"abstract":"","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48038483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}