Pub Date : 2022-01-23DOI: 10.3140/bull.geosci.1843
A. Ernst
Bryozoan fauna from several outcrops of sediments of the Kunda Stage (Darriwilian, Middle Ordovician) of Estonia and NW Russia contains 18 species which belong to the palaeostomate orders Cystoporata, Esthonioporata, Trepostomata, and Cryptostomata. The studied material comes mainly from the collection of the Department of Geology, Tallinn University of Technology, as well as was specimens I have collected. One genus with one species and one more species are new: Pakripora cavernosa gen. et sp. nov. and Dianulites pakriensis sp. nov. Four bryozoans are identified to genus level only. One cryptostome bryozoan shows unique morphology unknown in any similar genera. In general, the studied fauna shows close relations to other localities within the Baltic region, with some few relations to the Ordovician of China. The bryozoans developed massive and erect colonies, showing adaptation to the shallow to moderately deep environment with moderate water energy and relatively high level of sedimentation. •
{"title":"Bryozoan fauna from the Kunda Stage (Darriwilian, Middle Ordovician) of Estonia and NW Russia","authors":"A. Ernst","doi":"10.3140/bull.geosci.1843","DOIUrl":"https://doi.org/10.3140/bull.geosci.1843","url":null,"abstract":"Bryozoan fauna from several outcrops of sediments of the Kunda Stage (Darriwilian, Middle Ordovician) of Estonia and NW Russia contains 18 species which belong to the palaeostomate orders Cystoporata, Esthonioporata, Trepostomata, and Cryptostomata. The studied material comes mainly from the collection of the Department of Geology, Tallinn University of Technology, as well as was specimens I have collected. One genus with one species and one more species are new: Pakripora cavernosa gen. et sp. nov. and Dianulites pakriensis sp. nov. Four bryozoans are identified to genus level only. One cryptostome bryozoan shows unique morphology unknown in any similar genera. In general, the studied fauna shows close relations to other localities within the Baltic region, with some few relations to the Ordovician of China. The bryozoans developed massive and erect colonies, showing adaptation to the shallow to moderately deep environment with moderate water energy and relatively high level of sedimentation. •","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":"44781204","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}
Pub Date : 2022-01-23DOI: 10.3140/bull.geosci.1840
V. Baranov, C. Haug, M. Fowler, U. Kaulfuss, P. Müller, J. T. Haug
{"title":"Summary of the fossil record of megalopteran and megalopteran-like larvae, with a report of new specimens","authors":"V. Baranov, C. Haug, M. Fowler, U. Kaulfuss, P. Müller, J. T. Haug","doi":"10.3140/bull.geosci.1840","DOIUrl":"https://doi.org/10.3140/bull.geosci.1840","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":"47291924","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}
Pub Date : 2022-01-23DOI: 10.3140/bull.geosci.1832
A. Assemat, C. Girard, M. Joachimski, S. Adnet
{"title":"Vertebrate diversity reveals perturbations in faunal communities prior to the Hangenberg event in the Montagne Noire (France)","authors":"A. Assemat, C. Girard, M. Joachimski, S. Adnet","doi":"10.3140/bull.geosci.1832","DOIUrl":"https://doi.org/10.3140/bull.geosci.1832","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":"49074734","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}
Pub Date : 2021-10-01DOI: 10.3140/bull.geosci.1792
O. Fatka
{"title":"Frontal auxiliary impressions in the Ordovician trilobite Dalmanitina Reed, 1905 from the Barrandian area, Czech Republic","authors":"O. Fatka","doi":"10.3140/bull.geosci.1792","DOIUrl":"https://doi.org/10.3140/bull.geosci.1792","url":null,"abstract":"","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42887814","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}
Pub Date : 2021-10-01DOI: 10.3140/bull.geosci.1819
M. Bieńkowska-Wasiluk
{"title":"The fish fauna of the Dynów Marl Member (Menilite Formation, Poland): paleoenvironment and paleobiogeography of the early Oligocene Paratethys","authors":"M. Bieńkowska-Wasiluk","doi":"10.3140/bull.geosci.1819","DOIUrl":"https://doi.org/10.3140/bull.geosci.1819","url":null,"abstract":"","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45972951","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}
Pub Date : 2021-10-01DOI: 10.3140/bull.geosci.1839
J. S. Peel
fossils in the Cambrian, but the adaptation to enclose the soft parts within two articulating shells is widespread in the Cambrian biota. Amongst arthropods, bradoriids and phosphatocopines are also diverse and widely distributed (Hinz-Schallreuter 1993, Williams et al. 2007, Zhang 2007, Maas et al. 2003, McMenamin 2020), but a variety of other bivalved or pseudo-bivalved arthropods is known, mainly through occurrences in Lagerstätten such as the Burgess Shale and Chengjiang biotas (Briggs et al. 1994, Hou et al. 2017). Members of the molluscan Class Bivalvia are few in the Cambrian, but one of these, Pojetaia Jell, 1980, is widely distributed in the early and middle Cambrian (Elicki & Gürsu 2009, Vendrasco et al. 2011a). Shell symmetry in the problematic inequivalved bivalves Apistoconcha Conway Morris in Bengtson et al., 1990 and Aroonia Bengtson in Bengtson et al., 1990, originally described from the early Cambrian of Australia (Bengtson et al. 1990), is similar to that of brachiopods. Parkhaev (1998) placed Apistoconcha within a new class, Siphonoconcha, of uncertain position. Both genera may be stem group brachiopods (Bengtson 2004, Li et al. 2014). The calcareous shells of most members of the Class Stenothecoida Yochelson, 1968 (= Phylum Stenothecata Rozov, 1984) differ from brachiopods (usually inequi v alve but equilateral) and Bivalvia (usually equivalve but inequilateral) in being neither equivalve nor equilateral (Yochelson 1969, Rozov 1984; Fig. 1), but their systematic position is equivocal. Laurentian stenothecoids are generally referred just to Stenothecoides Resser, 1938 (Rasetti 1954, 1957; Robison 1964; Yochelson 1969; Peel 1988; Johnston et al. 2017; Johnston 2019; Fig. 1A, H), but a number of other genera and numerous species have been described from the Cambrian of Siberia and eastern Asia (Horný 1957; Sytchev 1960; Aksarina 1968; Yochelson 1969; Koneva 1976, 1979a, b; Pelman 1976, 1985; Aksarina & Pelman 1978; Voronin et al. 1982; Rozov 1984; Esakova & Zhegallo 1996; Yu 1996). Stenothecoids are distributed through Cambrian Series 2 and the Miaolingian (Rozanov & Zhuravlev 1992). Stenothecoides groenlandica Peel, 1988, from the late Miaolingian Series,
{"title":"Ontogeny, morphology and pedicle attachment of stenothecoids from the middle Cambrian of North Greenland (Laurentia)","authors":"J. S. Peel","doi":"10.3140/bull.geosci.1839","DOIUrl":"https://doi.org/10.3140/bull.geosci.1839","url":null,"abstract":"fossils in the Cambrian, but the adaptation to enclose the soft parts within two articulating shells is widespread in the Cambrian biota. Amongst arthropods, bradoriids and phosphatocopines are also diverse and widely distributed (Hinz-Schallreuter 1993, Williams et al. 2007, Zhang 2007, Maas et al. 2003, McMenamin 2020), but a variety of other bivalved or pseudo-bivalved arthropods is known, mainly through occurrences in Lagerstätten such as the Burgess Shale and Chengjiang biotas (Briggs et al. 1994, Hou et al. 2017). Members of the molluscan Class Bivalvia are few in the Cambrian, but one of these, Pojetaia Jell, 1980, is widely distributed in the early and middle Cambrian (Elicki & Gürsu 2009, Vendrasco et al. 2011a). Shell symmetry in the problematic inequivalved bivalves Apistoconcha Conway Morris in Bengtson et al., 1990 and Aroonia Bengtson in Bengtson et al., 1990, originally described from the early Cambrian of Australia (Bengtson et al. 1990), is similar to that of brachiopods. Parkhaev (1998) placed Apistoconcha within a new class, Siphonoconcha, of uncertain position. Both genera may be stem group brachiopods (Bengtson 2004, Li et al. 2014). The calcareous shells of most members of the Class Stenothecoida Yochelson, 1968 (= Phylum Stenothecata Rozov, 1984) differ from brachiopods (usually inequi v alve but equilateral) and Bivalvia (usually equivalve but inequilateral) in being neither equivalve nor equilateral (Yochelson 1969, Rozov 1984; Fig. 1), but their systematic position is equivocal. Laurentian stenothecoids are generally referred just to Stenothecoides Resser, 1938 (Rasetti 1954, 1957; Robison 1964; Yochelson 1969; Peel 1988; Johnston et al. 2017; Johnston 2019; Fig. 1A, H), but a number of other genera and numerous species have been described from the Cambrian of Siberia and eastern Asia (Horný 1957; Sytchev 1960; Aksarina 1968; Yochelson 1969; Koneva 1976, 1979a, b; Pelman 1976, 1985; Aksarina & Pelman 1978; Voronin et al. 1982; Rozov 1984; Esakova & Zhegallo 1996; Yu 1996). Stenothecoids are distributed through Cambrian Series 2 and the Miaolingian (Rozanov & Zhuravlev 1992). Stenothecoides groenlandica Peel, 1988, from the late Miaolingian Series,","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49069863","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}
Pub Date : 2021-10-01DOI: 10.3140/bull.geosci.1807
G. T. Haug, V. Baranov, G. Wizen, P. Pazinato, P. Müller, C. Haug, J. T. Haug
of diversity in the ecologically important group of Insecta (e.g. Hallmann et al. 2017, Lister & Garcia 2018, Seibold et al. 2019). To improve our understanding of this phenomenon, we can look at similar declines in diversity in ancient times as provided by the fossil record. In other words, we can compare the diversity of Insecta at different time slices. The fossil record of Insecta is especially attractive for such a type of comparison, as fossils with ex ceptional preservation, for example, preserved in amber, offer a very direct comparison to modern forms. A major share of the modernday diversity of Insecta is in fact the diversity of its ingroup Holometabola, with far more than half a million described species (Grimaldi & Engel 2005). While the representatives of Holometabola are indeed very diverse, they share one characteristic feature: all immatures (besides the ultimate one) lack compound eyes, and instead (if not blind) possess special ised eyes, socalled stemmata (Beutel et al. 2013). Similarly to the fact that the diversity of Insecta is mainly the diversity of Holometabola, the diversity of Holometabola is factually the diversity of some major ingroups, also known as “the big four” (although also here the true diversity lies in some deeper ingroups): 1) Hy me noptera: bees, ants and other wasps; 2) Coleoptera: beetles; 3) Lepidoptera: butterflies and moths; 4) Diptera: mosquitoes, midges, gnats and flies. Each of the “big four” comprises more than 100,000 formally described species (Grimaldi & Engel 2005, Beutel et al. 2013, Engel et al. 2018). From an ecological point of view, we need to consider that the diversity of ecosystem functions is in fact not only represented by wellknown adult forms of Holometabola (Grimaldi & Engel 2005, Marshall 2012, Hölker et al.
昆虫在生态上重要群体的多样性(例如Hallmann et al. 2017, Lister & Garcia 2018, Seibold et al. 2019)。为了提高我们对这一现象的理解，我们可以看看化石记录提供的古代生物多样性的类似下降。换句话说，我们可以比较昆虫在不同时间片上的多样性。昆虫类的化石记录对这种比较特别有吸引力，因为保存特别完好的化石，例如，保存在琥珀中的化石，提供了与现代形式的非常直接的比较。事实上，现代昆虫类多样性的主要部分是其内类群全代谢类的多样性，所描述的物种远远超过50万种(Grimaldi & Engel 2005)。虽然Holometabola的代表确实非常多样化，但它们有一个共同的特征:所有未成熟的(除了最终的)都没有复眼，相反(如果不是失明的话)拥有特殊的眼睛，即所谓的stemmata (Beutel et al. 2013)。与昆虫纲的多样性主要是全代谢纲的多样性类似，全代谢纲的多样性实际上是一些主要类群的多样性，也被称为“四大类群”(尽管这里真正的多样性也在于一些更深的类群):1)无翅目:蜜蜂、蚂蚁和其他黄蜂;2)鞘翅目:甲虫;3)鳞翅目:蝴蝶和飞蛾;双翅目:蚊、蠓、蚊、蝇。“四大”中的每一个都包括超过10万种正式描述的物种(Grimaldi & Engel 2005, Beutel et al. 2013, Engel et al. 2018)。从生态学的角度来看，我们需要考虑到生态系统功能的多样性实际上不仅仅是由众所周知的Holometabola成年形式所代表(Grimaldi & Engel 2005, Marshall 2012, Hölker等)。
{"title":"The morphological diversity of long-necked lacewing larvae (Neuroptera: Myrmeleontiformia)","authors":"G. T. Haug, V. Baranov, G. Wizen, P. Pazinato, P. Müller, C. Haug, J. T. Haug","doi":"10.3140/bull.geosci.1807","DOIUrl":"https://doi.org/10.3140/bull.geosci.1807","url":null,"abstract":"of diversity in the ecologically important group of Insecta (e.g. Hallmann et al. 2017, Lister & Garcia 2018, Seibold et al. 2019). To improve our understanding of this phenomenon, we can look at similar declines in diversity in ancient times as provided by the fossil record. In other words, we can compare the diversity of Insecta at different time slices. The fossil record of Insecta is especially attractive for such a type of comparison, as fossils with ex ceptional preservation, for example, preserved in amber, offer a very direct comparison to modern forms. A major share of the modernday diversity of Insecta is in fact the diversity of its ingroup Holometabola, with far more than half a million described species (Grimaldi & Engel 2005). While the representatives of Holometabola are indeed very diverse, they share one characteristic feature: all immatures (besides the ultimate one) lack compound eyes, and instead (if not blind) possess special ised eyes, socalled stemmata (Beutel et al. 2013). Similarly to the fact that the diversity of Insecta is mainly the diversity of Holometabola, the diversity of Holometabola is factually the diversity of some major ingroups, also known as “the big four” (although also here the true diversity lies in some deeper ingroups): 1) Hy me noptera: bees, ants and other wasps; 2) Coleoptera: beetles; 3) Lepidoptera: butterflies and moths; 4) Diptera: mosquitoes, midges, gnats and flies. Each of the “big four” comprises more than 100,000 formally described species (Grimaldi & Engel 2005, Beutel et al. 2013, Engel et al. 2018). From an ecological point of view, we need to consider that the diversity of ecosystem functions is in fact not only represented by wellknown adult forms of Holometabola (Grimaldi & Engel 2005, Marshall 2012, Hölker et al.","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43226482","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}
Pub Date : 2021-10-01DOI: 10.3140/bull.geosci.1838
M. Mergl
{"title":"Dead or alive? Brachiopods and other shells as substrates for endo- and sclerobiont activity in the early Devonian (Lochkovian) of the Barrandian (Czechia)","authors":"M. Mergl","doi":"10.3140/bull.geosci.1838","DOIUrl":"https://doi.org/10.3140/bull.geosci.1838","url":null,"abstract":"","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47427137","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}
Pub Date : 2021-10-01DOI: 10.3140/bull.geosci.1798
J. Nielsen, S. Helama
{"title":"Death assemblages of the freshwater mussels Unio crassus and U. tumidus (Bivalvia, Unionidae) from southern Finland: comparing taphonomical data with 14C dates","authors":"J. Nielsen, S. Helama","doi":"10.3140/bull.geosci.1798","DOIUrl":"https://doi.org/10.3140/bull.geosci.1798","url":null,"abstract":"","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42444076","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}
Pub Date : 2021-07-04DOI: 10.3140/bull.geosci.1823
J. P. Botting
{"title":"Hexactins in the ‘protomonaxonid’ sponge Choiaella and proposal of Ascospongiae (class nov.) asa formal replacement for the Protomonaxonida","authors":"J. P. Botting","doi":"10.3140/bull.geosci.1823","DOIUrl":"https://doi.org/10.3140/bull.geosci.1823","url":null,"abstract":"","PeriodicalId":9332,"journal":{"name":"Bulletin of Geosciences","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47430346","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}
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