Netherlands Journal of Geosciences最新文献

{"title":"Belemnites of the family Belemnitellidae Pavlow, 1914 from the Late Cretaceous Maastrichtian stage in the Northern Hemisphere","authors":"Norbert Keutgen, Zbyszek Remin","doi":"10.1017/njg.2024.15","DOIUrl":"https://doi.org/10.1017/njg.2024.15","url":null,"abstract":"The currently defined Global Stratotype Section and Point for the Campanian/Maastrichtian boundary at Tercis (France) lacks any belemnite record. However, the detailed correlation of Tercis with the Kronsmoor section in northern Germany has enabled recognising this boundary in terms of belemnite stratigraphy close to the first appearance datum (FAD) of <jats:italic>Belemnella obtusa</jats:italic> Schulz, 1979. Originally, the FAD of the genus <jats:italic>Belemnella</jats:italic> Nowak, 1913 (e.g. of <jats:italic>Belemnella lanceolata</jats:italic> (von Schlotheim, 1813)) has been widely used for defining the base of the traditionally understood Maastrichtian stage in the Boreal Realm. <jats:italic>Belemnella</jats:italic> appeared almost contemporaneously across a significant portion of epicontinental Europe in what is now considered topmost Campanian and dominated the lower Maastrichtian belemnite assemblages, co-occurring with <jats:italic>Belemnitella</jats:italic> d’Orbigny, 1840 and rare <jats:italic>Fusiteuthis</jats:italic> Kongiel, 1962. It disappeared in Western and Central Europe during the mid-Maastrichtian, and as a consequence, the FAD of <jats:italic>Belemnitella junior</jats:italic> Nowak, 1913 served as a biomarker defining the base of the upper Maastrichtian substage. It is only at the end of the Maastrichtian that the genus <jats:italic>Neobelemnella</jats:italic> Naidin, 1975 became abundant, replacing <jats:italic>Belemnitella</jats:italic> steadily from the east to the west as the dominating species. The factors underlying those remarkable shifts in belemnite assemblages remain uncertain, but various environmental elements, especially water depth and temperature, in addition ocean currents, and oceanic chemical composition are considered influential.","PeriodicalId":501577,"journal":{"name":"Netherlands Journal of Geosciences","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New records of Diplomoceras (Ammonoidea, Diplomoceratidae) from Koryak Upland, North-West Pacific Province: taxonomic, biostratigraphical and palaeogeographical implications","authors":"Elena A. Jagt-Yazykova, Anastasia A. Zolina, Lina B. Golovneva","doi":"10.1017/njg.2024.13","DOIUrl":"https://doi.org/10.1017/njg.2024.13","url":null,"abstract":"The geographical and stratigraphical distribution of the heteromorph ammonite genus <jats:italic>Diplomoceras</jats:italic> within the North-West Pacific Province is briefly reviewed. Although <jats:italic>Diplomoceras</jats:italic> ranks amongst the more important, globally distributed taxa during the latest Cretaceous, its precise stratigraphical range still is uncertain. Moreover, the status of the various species assigned to this genus is a matter of debate; for instance, two commonly cited forms, <jats:italic>Diplomoceras cylindraceum</jats:italic> and <jats:italic>D. notabile</jats:italic>, are considered to be conspecific by some authors, but treated as discrete taxa by others. The majority of records of species of <jats:italic>Diplomoceras</jats:italic> are from Maastrichtian strata; however, several late Campanian finds bring some discrepancy into the discussion about their biostratigraphical significance. Here we record new specimens from the upper Maastrichtian Kokuy Unit, refer them to <jats:italic>Diplomoceras cylindraceum</jats:italic> and briefly consider the geographical, biostratigraphical and taxonomic issues surrounding the genus <jats:italic>Diplomoceras</jats:italic>.","PeriodicalId":501577,"journal":{"name":"Netherlands Journal of Geosciences","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trace fossils from the Maastrichtian chalk of the Isle of Rügen, north-east Germany","authors":"Dirk Knaust, Hilmar Schnick","doi":"10.1017/njg.2024.6","DOIUrl":"https://doi.org/10.1017/njg.2024.6","url":null,"abstract":"The lower Maastrichtian chalk of the Isle of Rügen was deposited in a pelagic setting in the aphotic zone. Its rich fossil content has attracted research attention for centuries, whereas its ichnological characteristics remain poorly understood, even though horizons with intense bioturbation and occurrences of trace fossils in flint are common. The enhanced colour contrast of smooth chalk faces reveals repeated phases of benthic colonisation; larger burrows are commonly subject to silicification, while flint nodules also can preserve burrows in chalk. A total of 37 ichnogenera, including 47 ichnospecies of bioturbation and bioerosion trace fossils have been recognised; these are here briefly described, in addition to indeterminate material. Many ichnotaxa are recorded for the first time from the Rügen chalk. Bioerosion is restricted mainly to local hardgrounds in the form of biogenic components (such as shells and belemnite guards).","PeriodicalId":501577,"journal":{"name":"Netherlands Journal of Geosciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140931812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Remarkable insights into modern bird origins from the Maastrichtian type area (north-east Belgium, south-east Netherlands)","authors":"Daniel J. Field, Juan Benito, Sarah Werning, Albert Chen, Pei-Chen Kuo, Abi Crane, Klara E. Widrig, Daniel T. Ksepka, John W.M. Jagt","doi":"10.1017/njg.2024.11","DOIUrl":"https://doi.org/10.1017/njg.2024.11","url":null,"abstract":"For centuries, fossils from the Maastrichtian type locality and adjacent quarries have provided key evidence of vertebrate diversity during the latest Cretaceous, yet until recently the Maastrichtian type area had revealed no important insights into the evolutionary history of birds, one of the world’s most conspicuous groups of extant tetrapods. With the benefit of high-resolution micro-CT scanning, two important avian fossils from the Maastrichtian type area have now been examined in detail, offering profound, complementary insights into the evolutionary history of birds. The holotype specimens of these new taxa, <jats:italic>Janavis finalidens</jats:italic> Benito, Kuo, Widrig, Jagt and Field, 2022, and <jats:italic>Asteriornis maastrichtensis</jats:italic> Field, Benito, Chen, Jagt and Ksepka, 2020, were originally collected in the late 1990s, but were only investigated in detail more than twenty years later. Collectively, <jats:italic>Janavis</jats:italic> and <jats:italic>Asteriornis</jats:italic> provide some of the best evidence worldwide regarding the factors that influenced stem bird extinction and crown bird survivorship through the Cretaceous-Palaeogene transition, as well as insights into the origins of key anatomical features of birds such as an extensively pneumatised postcranial skeleton, a kinetic palate, and a toothless beak. <jats:italic>Asteriornis</jats:italic> also provides scarce evidence of a Cretaceous-aged divergence time calibration within the avian crown group, while together, <jats:italic>Janavis</jats:italic> and <jats:italic>Asteriornis</jats:italic> constitute the only documented co-occurrence of crown birds and non-neornithine avialans. Here, we review key insights into avian evolutionary history provided by these discoveries from the Maastrichtian stratotype, document undescribed and newly discovered Maastrichtian fossils potentially attributable to Avialae and provide the first histological data for the holotype of <jats:italic>Asteriornis</jats:italic>, illustrating its skeletal maturity at the time of its death.","PeriodicalId":501577,"journal":{"name":"Netherlands Journal of Geosciences","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140931731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Facies characterisation and stratigraphy of the upper Maastrichtian to lower Danian Maastricht Formation, South Limburg, the Netherlands","authors":"Mateus Kroth, João P. Trabucho-Alexandre, Mariana Pinheiro Pimenta, Geert-Jan Vis, Eva De Boever","doi":"10.1017/njg.2024.9","DOIUrl":"https://doi.org/10.1017/njg.2024.9","url":null,"abstract":"The Maastricht Formation is a mostly calcarenitic unit that belongs to the Chalk Group but is unlike the typical North Sea chalk in that it is much coarser and at times contains a significant terrigenous component. The formation was deposited between the late Maastrichtian and the early Danian in a proximal zone of the Chalk Sea immediately north of the Anglo-Brabant and Rhenish massifs. The formation crops out in South Limburg, the Netherlands, in the German state of North Rhine–Westphalia, near Aix-la-Chapelle (Aachen), and in the Belgian provinces of Liège and Limburg, and it is present in the subsurface in the Campine Basin and in the Roer Valley Graben, in Belgium and the Netherlands. The often spectacular fossil content of the Maastricht Formation has been extensively studied but its sedimentological aspects remain understudied. Indeed, the lithostratigraphy of the formation is largely informal and based on the abundance and morphology of flint and on the quantification of fossil content. The paucity of facies studies and the lack of a lithostratigraphic framework based on modern facies studies hampers stratigraphic correlation between outcrops and, more importantly, boreholes. A facies characterisation and facies-based lithostratigraphic framework of the Maastricht Formation in South Limburg is particularly urgent because groundwater is abstracted from aquifers in the formation and geological models currently in place fail to predict facies heterogeneity and, consequently, aquifer properties. We studied eight outcrops of the Maastricht Formation across South Limburg and carried out a (micro)facies analysis of the outcrops. We show that the Maastricht Formation can be subdivided into three lithofacies and five microfacies. The lithofacies reflect the traditional subdivision of the formation into Maastricht and Kunrade limestones. Our results suggest that the current subdivision of the Maastricht Formation into six members is untenable. The formation is best subdivided into lower and upper members. The Kunrade limestone should be afforded the status of formation. We interpret the Maastricht Formation as having been deposited in an epeiric ramp, in which facies distribution was controlled by water temperature, nutrient levels and storminess. The (micro)facies of the Maastricht Formation can be organised into two depositional stages: stage 1, representing the lower part of the formation, is characterised by heterozoan carbonates deposited under cooler, mesotrophic conditions in a nutrient-rich, more proximal region of the epeiric sea; stage 2 is characterised by heterozoan-photozoan carbonates deposited in a warmer and stormier environment with slightly lower nutrient levels.","PeriodicalId":501577,"journal":{"name":"Netherlands Journal of Geosciences","volume":"204 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140931926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Miocene sperm whale (Cetacea, Physeteroidea) tooth from Liessel (Noord-Brabant, the Netherlands)","authors":"Felix Snoodijk, Jonathan J. W. Wallaard, Anne S. Schulp, Jelle W. F. Reumer","doi":"10.1017/njg.2024.5","DOIUrl":"https://doi.org/10.1017/njg.2024.5","url":null,"abstract":"<p>Here we report a well-preserved isolated physeteroid tooth of Late Miocene age from Liessel, the Netherlands. The presence of several morphological features allows attribution to the macroraptorial physeteroids. Size and morphology are to some extent comparable to <span>Zygophyseter</span> and almost identical to the primarily tooth-based Tortonian taxon <span>Scaldicetus caretti</span>. However, the genus <span>Scaldicetus</span> was declared unutilizable, which is supported here with an overview of modern classifications of <span>Scaldicetus</span> species and specimens. Despite the restrictions, the type species <span>S. caretti</span> is still valid, although the name is to be restricted to the type material. Based on its morphological resemblance, the tooth is identified as Physeteroidea indet. cf. <span>Scaldicetus caretti</span>.</p>","PeriodicalId":501577,"journal":{"name":"Netherlands Journal of Geosciences","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140810185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A distant traveller: a Late Jurassic nerineoid gastropod (Mollusca, Heterobranchia) on the Maasvlakte 2 beach, the Netherlands","authors":"Jelle W.F. Reumer, Anders Schinkel","doi":"10.1017/njg.2024.8","DOIUrl":"https://doi.org/10.1017/njg.2024.8","url":null,"abstract":"A fragmentary nerineoid gastropod collected from the Maasvlakte 2 beach may be identified as <jats:italic>Ptygmatis</jats:italic> cf. <jats:italic>bruntrutana</jats:italic> (Thurmann, 1832). Probably originating from Upper Jurassic strata in north-eastern France, it must have been transported here by a forerunner of the River Meuse (Maas).","PeriodicalId":501577,"journal":{"name":"Netherlands Journal of Geosciences","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140804571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A plesiosaurian autopodial element (Plesiosauria indet.) with remarkable articular subchondral surfaces from the Maastrichtian type area (south-east Netherlands)","authors":"Lars P.J. Barten, Eric W.A. Mulder, John W.M. Jagt","doi":"10.1017/njg.2024.4","DOIUrl":"https://doi.org/10.1017/njg.2024.4","url":null,"abstract":"<p>The first isolated and well-preserved phalanx (autopodial element) of a generically and specifically indeterminate (probably xenopsarian) plesiosaur from the Maastrichtian type area (south-east Netherlands) is described and illustrated. Morphological features of this bone, such as the articular subchondral surfaces, allow it to be distinguished from phalanges of co-occurring mosasaurs (Mosasauridae, Squamata) and could imply rapid growth in plesiosaurs, similar to that observed in extant leatherback turtles. The large size of the phalanx indicates that it originates either from a large juvenile or from a paedomorphic individual. The paucity of plesiosaur remains in biocalcarenites of late Maastrichtian age in the Maastrichtian type area could be explained by the shallow settings, in which these strata were deposited, which may not have offered suitable ecological resources conducive to abundant plesiosaur inhabitation. Presumably, the lack of steep continental slopes in the type Maastrichtian, at which oceanic upwelling of cold, nutrient-rich water supported a higher prey density for pelagic predators such as plesiosaurs, may have inhibited plesiosaur occupation. Rather, decomposing floating carcasses may have been the source of dissociated elements of plesiosaurs in this area, such as isolated teeth, vertebrae and the autopodial element described here.</p>","PeriodicalId":501577,"journal":{"name":"Netherlands Journal of Geosciences","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140614552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scaphitid ammonites from the lower Maastrichtian of Nahoryany (western Ukraine) and discussion on the origin of Hoploscaphites constrictus","authors":"Marcin Machalski","doi":"10.1017/njg.2024.2","DOIUrl":"https://doi.org/10.1017/njg.2024.2","url":null,"abstract":"The lower Maastrichtian (Upper Cretaceous) section at Nahoryany, south of Lviv (western Ukraine), has been known as a rich source of fossils since 1843. However, the section is not available since a long time ago and fossils collected from it can only be studied in museum collections. In the present paper, ammonites of the scaphitid genus <jats:italic>Hoploscaphites</jats:italic> are studied based on Nahoryany material, comprising <jats:italic>Hoploscaphites pumilus</jats:italic>, <jats:italic>H. constrictus</jats:italic> and <jats:italic>H.</jats:italic> sp. Specimens from Nahoryany in museum collections lack data on their provenance level within the section so it cannot be determined whether or not they occurred together or formed a succession; data on inoceramid bivalves indicate the presence of two successive zones at Nahoryany. Some specimens from Nahoryany here referred to as <jats:italic>H. pumilus</jats:italic> are similar to the controversial <jats:italic>H. constrictus anterior</jats:italic> from the lower Maastrichtian of Poland. This morphology suggests an ancestor–descendant relationship between <jats:italic>H</jats:italic>. <jats:italic>pumilus</jats:italic> and <jats:italic>H</jats:italic>. <jats:italic>constrictus</jats:italic>, a common species once considered as an informal index for the Boreal Maastrichtian in Europe. The inferred evolutionary transition from <jats:italic>H</jats:italic>. <jats:italic>pumilus</jats:italic> to <jats:italic>H</jats:italic>. <jats:italic>constrictus</jats:italic> was towards a less robust, recoiled shell, which would have enhanced the horizontal swimming ability and manoeuvrability of these cephalopods. Recoiling trends occurred in several lineages of Late Cretaceous scaphitids.","PeriodicalId":501577,"journal":{"name":"Netherlands Journal of Geosciences","volume":"143 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140202144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The diversity of teleost fishes during the terminal Cretaceous and the consequences of the K/Pg boundary extinction event","authors":"Werner W. Schwarzhans, Giorgio Carnevale, Gary L. Stringer","doi":"10.1017/njg.2024.1","DOIUrl":"https://doi.org/10.1017/njg.2024.1","url":null,"abstract":"<p>The Late Cretaceous was a time of blossoming teleost diversification that came to a sudden restriction and partial termination during the extinction event at the Cretaceous–Paleogene (K/Pg) boundary. Among the dominant and diverse Late Cretaceous teleost groups prior to the K/Pg boundary event were certain pelagic Aulopiformes (e.g., Ichthyotringoidei and Enchodontoidei) and a large variety of basal Acanthomorpha whose relationships are difficult to determine. The skeletal record diminishes during the late Campanian and is low in the Maastrichtian and Paleocene, constituting the so-called ‘Patterson’s Gap’. Recent studies of fossil otoliths, however, have significantly increased the number of taxa recognised for this time inerval, but most of the putative extinct forms lack adequate calibration with otoliths found <span>in situ</span> in articulated skeletons. However, the otolith assemblages do confirm the presence of great morphological diversity among Aulopiformes and Acanthomorpha <span>incertae sedis</span> that became extinct at the K/Pg boundary. In the present review, we elucidate the effect of the K/Pg boundary from an otolith perspective and categorise extinct lineages and survivors. It is interesting to recognise that several of the surviving lineages are represented by groups that probably originated during the Late Cretaceous but were not particularly common up to the K/Pg boundary and began to expand rapidly and diversify during the early Paleogene. Such lineages probably took advantage to populate void ecospace that may have opened following the extirpation of previously dominant lineages. During the early Paleogene, the otolith record shows that the Ophidiiformes and perciforms s. lat. were the ones that diversified the most rapidly and became the most abundant, and in certain areas associated with the Gadiformes.</p>","PeriodicalId":501577,"journal":{"name":"Netherlands Journal of Geosciences","volume":"129 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140025622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}