Cretaceous Research最新文献

{"title":"First record of the cosmopolitan brachiopod Praelacazella wetherelli from the lower Maastrichtian of Western Australia","authors":"Ane Elise Schrøder ,&nbsp;Finn Surlyk ,&nbsp;Eckart Håkansson","doi":"10.1016/j.cretres.2024.105881","DOIUrl":"10.1016/j.cretres.2024.105881","url":null,"abstract":"<div><p>We describe the thecideid brachiopod <em>Praelacazella wetherelli</em> (Morris, 1851) from the lower Maastrichtian Korojon Formation in the Carnarvon Basin, Western Australia. This is the first documented record of <em>Praelacazella wetherelli</em> from the Southern Hemisphere, suggesting that the species was cosmopolitan in distribution during the Late Cretaceous. Three possible long-distance migration routes are discussed.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"160 ","pages":"Article 105881"},"PeriodicalIF":2.1,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0195667124000545/pdfft?md5=a461bddedffdb4a12497208961323e1b&pid=1-s2.0-S0195667124000545-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140269431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A New Fossil of Cystodium (Cystodiaceae) from the mid-Cretaceous Myanmar amber","authors":"Chunxiang Li ,&nbsp;Robbin C. Moran ,&nbsp;Yiran Wang ,&nbsp;Ya Li ,&nbsp;Junye Ma","doi":"10.1016/j.cretres.2024.105882","DOIUrl":"10.1016/j.cretres.2024.105882","url":null,"abstract":"<div><p>The only known fossil of <em>Cystodium</em> (Cystodiaceae) is <em>C. sorbifolioides</em> from mid-Cretaceous Myanmar amber. Here we describe a new fossil species of <em>Cystodium</em>, <em>C. parasorbifolium,</em> also from amber collected in Myanmar. This new species belongs to <em>Cystodium</em> based on pinnate fertile lamina segments, terminal sori protected by a reflexed lobe of the lamina (outer or false indusium), free veins, vertical annuli interrupted at the stalk, trilete spores, and striate perines. It differs from <em>C. sorbifolioides</em> by reflexed ovate-conical indusia and spores with clear striate perines. This new fossil species suggests that <em>Cystodium</em> was more diverse in the forests of Myanmar during the Cretaceous.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"160 ","pages":"Article 105882"},"PeriodicalIF":2.1,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140272184","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":"Albian sedimentation in western Atlas, Morocco","authors":"Etienne Jaillard ,&nbsp;Emmanuel Robert ,&nbsp;Jean-Louis Latil ,&nbsp;Moussa Masrour","doi":"10.1016/j.cretres.2024.105872","DOIUrl":"https://doi.org/10.1016/j.cretres.2024.105872","url":null,"abstract":"<div><p>Detailed study of field sections and extensive ammonite collection allowed to specify the sedimentary evolution and age of the Albian series of the Western Atlas (Morocco). After a significant hiatus of earliest Albian age, the Albian transgression began in the late <em>Douvilleiceras leightonense</em> Zone with partly clastic deposits. A transgressive pulse gave way to clayey marl deposits (<em>Douvilleiceras mammillatum</em> Zone), which evolved upward to partly carbonate, laminated deposits of late early Albian to earliest middle Albian age (<em>Lyelliceras pseudolyelli</em> to early <em>Lyelliceras lyelli</em> zones). A major hiatus that encompassed most of the middle Albian, was followed by a new transgression marked first by sandy deposits (<em>Dipoloceras cristatum</em> and <em>Pervinquiria pricei</em> zones), and then by clayey marl and limestone nodules (<em>Pervinquieria inflata</em> Zone). A sharp sea level fall (late <em>Pervinquieria inflata</em> to early <em>Pervinquieria fallax</em> zones) led to the development of a shallow marine carbonate shelf (Kechoula Formation). A last transgressive pulse allowed deposition of outer shelf clayey marls (<em>Pervinquieria rostrata</em> to <em>Arrhaphoceras briacensis</em> (?) zones), interrupted near the Albian-Cenomanian boundary by a sea level fall and hiatus. Anoxic to disoxic conditions are recorded in the latest early Albian and the late Albian, which correlate with the Leenhardt and Breistroffer levels, respectively. Correlations with Albian successions in North Africa and southern Europe suggest a mainly eustatic origin for the most important sedimentary discontinuities, although the late Albian sea-level drop may be tectonically enhanced.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"159 ","pages":"Article 105872"},"PeriodicalIF":2.1,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0195667124000454/pdfft?md5=411ea5653d727c8ede528287472b803c&pid=1-s2.0-S0195667124000454-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140187570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new genus and species of mud cricket (Orthoptera: Ripipterygidae) from mid-Cretaceous Kachin amber of northern Myanmar","authors":"Jinyang Zhao ,&nbsp;Chunpeng Xu ,&nbsp;Chengquan Cao ,&nbsp;Edmund A. Jarzembowski ,&nbsp;Yan Fang ,&nbsp;Chuantao Xiao","doi":"10.1016/j.cretres.2024.105880","DOIUrl":"10.1016/j.cretres.2024.105880","url":null,"abstract":"<div><p>The Ripipterygidae is a small orthopteran family which comprises several bizarre species. A new genus and species of Ripipterygidae, <em>Kallosripipteryx zhangi</em> sp. nov., is described based on a well-preserved inclusion from mid-Cretaceous Kachin amber. The new genus and species are established based on the following combination of characters: wider interocular distance, prosternal process present, fusiform mesotibia, metatibia apical spurs about 1/3rd of metatarsus in length; paraproctal lobe two-segmented; and paraproctal lobe distinctly longer than ovipositor. Additionally, we recognize a kind of metatarsal structure among most Mesozoic ripipterygids: the outer side of apical process is triangular in lateral view. Our new find enriches the biodiversity of fossil Ripipterygidae as well as Tridactyloidea, and provides a new interpretation of biogeography of Tridactyloidea.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"160 ","pages":"Article 105880"},"PeriodicalIF":2.1,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140273333","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":"Late Albian-Cenomanian paleoenvironmental and paleoclimatic reconstructions in northeastern Gondwana: Palynological perceptions","authors":"Ahmed Mansour ,&nbsp;Jian Wang ,&nbsp;Wolfgang Ruebsam ,&nbsp;Sameh S. Tahoun ,&nbsp;Lamia A. Abdelhalim ,&nbsp;Mohamed S. Ahmed ,&nbsp;Xiugen Fu","doi":"10.1016/j.cretres.2024.105878","DOIUrl":"10.1016/j.cretres.2024.105878","url":null,"abstract":"<div><p>The late Albian-Cenomanian (100.5–93.9 Ma) is considered a greenhouse world without permanent ice caps and with high eustatic sea levels. The high sea-level led to the flooding of low-lying coastal plains and the formation of extensive shallow shelf seas. Depositional conditions and ecosystems at these marginal and shallow shelf settings were affected by changes in environmental conditions, such as climate and vegetational ecosystems in surrounding regions. This study conducts palynomorph and palynofacies and lithofacies analysis of fifty-nine cutting samples from the North Qarun-1x well in the Gindi Basin (North Western Desert, Egypt) to assess the evolution of depositional and paleoenvironmental conditions as well as paleo-vegetation pattern in response to changes in climate and sea level. The sediment succession comprises the upper Albian to Cenomanian upper Kharita and Bahariya formations and Abu Roash G Member. Biostratigraphic analysis of palynomorph composition led to define seven interval zones of upper Albian-Cenomanian. At this time, Egypt was inundated by the southern margin of the Tethys Ocean, which led to the deposition of thick siliciclastic and carbonate facies in a marginal marine depositional environment. Statistical cluster analysis of particulate organic matter (POM) allowed three palynofacies assemblages (PFA-1 to PFA-3) to be recognized, indicating oscillating depositional conditions that shifted between fluvio-deltaic to marginal shallow marine, proximal, and distal inner neritic shelf environments. PFA-1 comprises the highest proportions of total phytoclasts, indicating fluvio-deltaic to marginal shallow marine conditions. PFA-2 is dominated by moderate abundances of AOM and phytoclasts, characterizing a proximal inner neritic shelf environment. PFA-3 consists of a slightly higher concentration of AOM compared to phytoclasts, indicating a distal inner neritic shelf environment with diminished terrestrial input and increased abundances of marine microplankton. Organic palynomorphs are abundant in mid-Cretaceous strata of northern Egypt. Abundant records of humidity indicators, mainly fern spores, along with other gymnosperms (mainly Taxodiaceae and Araucariaceae) compared to low aridity indicators of gnetalean Elaterates and Ephedroids along with non-gnetalean <em>Classopollis</em> suggest predominantly warm and humid conditions. Two intervals in the lower part of the Bahariya Formation and in the middle part of the Abu Roash G Member showed moderate to high abundances of aridity indicators and thus, warm arid to semi-arid climate events during the early and late Cenomanian.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"160 ","pages":"Article 105878"},"PeriodicalIF":2.1,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151139","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 fossil caddisflies (Trichoptera, Dysoneuridae) from the Lower Cretaceous of Inner Mongolia, China","authors":"Jiawei Chao ,&nbsp;Jiajia Wang ,&nbsp;Chungkun Shih ,&nbsp;Dong Ren","doi":"10.1016/j.cretres.2024.105877","DOIUrl":"10.1016/j.cretres.2024.105877","url":null,"abstract":"<div><p>A new caddisfly species, <em>Khasurtia apertalocularis</em> sp. nov., and a Dysoneuridae gen. indet. sp., are described and illustrated, and <em>Utania defecta</em> Sukatsheva, 1982 is redescribed, based on 13 fossil specimens from the Lower Cretaceous Yixian Formation of Inner Mongolia, China. This is the first report of the family Dysoneuridae in China, enhancing the geographical distribution of this family and providing reference to the paleogeography. New specimens show that the species previously classified as Dysoneuridae from the compression fossils and Myanmar amber belong to different families based on the characters of wing, ocelli and antennae; and support that the caddisflies in Myanmar amber be elevated to two families, Burmapsychidae and Cretapsychidae.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"159 ","pages":"Article 105877"},"PeriodicalIF":2.1,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151088","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":"Revision of the plesiosaur Polycotylus sopozkoi from the Southern Urals (Russia) confirms the wide distribution of Polycotylus in the Late Cretaceous of the Northern Hemisphere","authors":"N.G. Zverkov ,&nbsp;D.V. Grigoriev ,&nbsp;I.A. Meleshin ,&nbsp;A.V. Nikiforov","doi":"10.1016/j.cretres.2024.105879","DOIUrl":"10.1016/j.cretres.2024.105879","url":null,"abstract":"<div><p>Polycotylids are among the most common plesiosaurians of the Late Cretaceous, however, in Eurasia their findings are rare and fragmentary. In 2016, a partial polycotylid skeleton from the Upper Cretaceous of the Izhberda quarry in the Southern Urals region was described by Efimov et al. as a new species, <em>Polycotylus sopozkoi</em>. Here we revise this holotype specimen and show that many features initially proposed to distinguish the species are the result of misinterpretations. However, <em>P. sopozkoi</em> is indeed referable to <em>Polycotylus</em> and is highly similar to its type species, <em>P. latipinnis</em>. Although only one distinctive trait of the species noted by Efimov et al., the protruding basioccipital tubera with deep carotid canals on their anterodorsal surface, is confirmed here, new observations revealed additional features that allow us to substantiate the validity of <em>P. sopozkoi</em>. The presence of <em>Polycotylus</em> in the Upper Cretaceous of North America and Eastern Europe highlights a wide distribution of some plesiosaurian genera and suggests caution in assumptions of ‘endemic’ plesiosaurian taxa in particular regions of the world.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"160 ","pages":"Article 105879"},"PeriodicalIF":2.1,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151140","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":"A new ornithopod from the Upper Cretaceous (Huincul Formation) of northwestern Patagonia, Argentina: Implications on elasmarian postcranial anatomy","authors":"Rodrigo Alvarez Nogueira ,&nbsp;Sebastián Rozadilla ,&nbsp;Federico L. Agnolín ,&nbsp;Jordi A. Garcia Marsà ,&nbsp;Matias J. Motta ,&nbsp;Fernando E. Novas","doi":"10.1016/j.cretres.2024.105874","DOIUrl":"10.1016/j.cretres.2024.105874","url":null,"abstract":"<div><p>The aim of the present contribution is to describe the first ornithischian species from the Huincul Formation (Cenomanian-Turonian, Upper Cretaceous) at the Pueblo Blanco Natural Reserve, Río Negro province, Argentina. The new species, named <em>Chakisaurus nekul</em> gen. et sp. nov., can be comfortably included among elasmarian ornithopods. The new species shows humeral anatomy that is congruent with smaller members of the clade (e.g. <em>Anabisetia, Notohypsilophodon</em>), and differs from larger taxa (e.g. <em>Talenkauen, Mahuidacursor</em>) which show humeral features probably related with graviportal habits, such as lack of shaft torsion and a distally located deltopectoral crest. This indicates that graviportal habits were probably acquired independently in elasmarians from other large-sized taxa, such as hadrosauroids. Caudal vertebrae of the new species also show a unique combination of characters shared with other elasmarians, which are absent in previously known ornithopods. These features indicate that some elasmarians had a protonic tail posture, which is unknown in other ornithischians and was previously considered unique to derived titanosaurian sauropods. The shape of transverse processes and neural spines of caudal vertebrae indicate that at least some elasmarians had improved cursorial habilities, that were convergently acquired by selected theropod clades.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"159 ","pages":"Article 105874"},"PeriodicalIF":2.1,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151081","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":"Two new species of Ghilarellinae (Hymenoptera, Cephoidea, Sepulcidae) from the Lower Cretaceous","authors":"Yi Li ,&nbsp;Mei Wang ,&nbsp;Alexandr P. Rasnitsyn ,&nbsp;Chungkun Shih ,&nbsp;Jialiang Zhuang ,&nbsp;Dong Ren","doi":"10.1016/j.cretres.2024.105875","DOIUrl":"10.1016/j.cretres.2024.105875","url":null,"abstract":"<div><p>One new species, <em>Ghilarella elegantula</em> sp. nov., in the family Sepulcidae is described and illustrated based on a well-preserved compression fossil specimen from the Lower Cretaceous Yixian Formation of northeastern China. The new species is characterized by having a large body size; forewing with costal area obviously narrowed basally, Sc and 2r-m absent, 1-Rs short, cell 1mcu large; and ovipositor elongated. In addition, <em>Ghilarella</em> cf. <em>mercurialis</em> is given its own name <em>Ghilarella kopylovi</em> as the new species in <em>Ghilarella</em>. An updated key for the known species of <em>Ghilarella</em> is provided. Moreover, a well-preserved ovipositor is reported for the first time in the subfamily Ghilarellinae. The two new species not only improve our understanding of <em>Ghilarella</em> by adding more morphological features, but also expand the distribution ranges of Ghilarellinae fossil records.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"159 ","pages":"Article 105875"},"PeriodicalIF":2.1,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151086","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 Sinoalidae (Hemiptera, Cercopoidea) in Cenomanian Kachin amber, with notes on its paleobiogeographic implications","authors":"Jun Chen ,&nbsp;De Zhuo ,&nbsp;Wenqian Wang ,&nbsp;Yan Zheng ,&nbsp;Baizheng An","doi":"10.1016/j.cretres.2024.105876","DOIUrl":"10.1016/j.cretres.2024.105876","url":null,"abstract":"<div><p>The froghopper extinct family Sinoalidae shows high paleo-diversity in mid-Cretaceous Kachin amber biota. The sinoalid genus <em>Cretadorus</em> Chen, 2020 is revised in this study. <em>Araeoanasillus</em> Poinar et Brown, 2023, tentatively placed in Sinoalidae with subfamily and tribe <em>incertae sedis</em> in original paper, is proposed herein to be synonymized under <em>Cretadorus</em>, leading to <em>Cretadorus leptosomus</em> (Poinar et Brown, 2023) comb. nov. A new species of this genus, <em>Cretadorus qingyui</em> sp. nov., is described and illustrated on the basis of an almost complete fossil trapped in Kachin amber. The Gondwanan origin of Burma Terrane suggests that Sinoalids in Kachin amber are likely one of residual groups of Gondwanan biotae, and so this family had wide paleobiogeographic distribution on the earth in the Jurassic. In the Early Cretaceous, the distribution range of Sinoalidae has reduced: it at least probably disappeared in northeastern Eurasia. This hemipteran lineage was extinct in the late Mesozoic owing to food crisis after the angiosperm floristic revolution.</p></div>","PeriodicalId":55207,"journal":{"name":"Cretaceous Research","volume":"159 ","pages":"Article 105876"},"PeriodicalIF":2.1,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140151137","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}