Palaeoworld最新文献

{"title":"Early Ordovician acritarch and prasinophyte assemblages from eastern Yunnan, South China: Biostratigraphical and palaeobiogeographical implications","authors":"Kui Yan ,&nbsp;Long-Long Shan ,&nbsp;Jun Li ,&nbsp;Thomas Servais","doi":"10.1016/j.palwor.2025.201000","DOIUrl":"10.1016/j.palwor.2025.201000","url":null,"abstract":"<div><div>The investigation of acritarch and prasinophyte assemblages from the Tangchih Formation of Lower Ordovician outcrops from the eastern Yunnan Province reveals the presence of 39 genera and 54 species. The assemblages are dominated by the genera <em>Coryphidium</em>, <em>Dactylofusa</em>, <em>Leiosphaeridia</em>, <em>Lophosphaeridium</em>, <em>Micrhystridium</em>, <em>Polygonium</em>, <em>Rhopaliophora</em>, and the galeate acritarch plexus. The first occurrences of <em>Aryballomorpha</em>, <em>Aureotesta clathrata simplex</em>, <em>Barakella</em>, <em>Coryphidium</em>, <em>C</em>. <em>bohemicum</em>, <em>Dactylofusa velifera</em>, <em>Dasydorus</em>, <em>Peteinosphaeridium</em>, <em>Rhopaliophora</em>, <em>Striatotheca</em> and <em>Vulcanisphaera</em> indicate that the age of the Tangchih Formation corresponds to the latest Tremadocian to Floian. The microflora can be correlated to the <em>messaoudensis-trifidum</em> assemblage of western Europe and coeval assemblages worldwide. In terms of palaeoecology, the composition of the palynomorph assemblage, together with sedimentological and trace fossil evidence, indicates a shallow-water environment in the study area during the late Tremadocian to early Floian. In the context of palaeobiogeography, the palynomorph assemblage contains elements of both the ‘warm water’ <em>Aryballomorpha</em>-<em>Athabascaella</em>-<em>Lua</em> assemblage and the ‘cold water’ diacromorph acritarchs, possibly showing a mixed microflora in South China during the Early Ordovician.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"35 1","pages":"Article 201000"},"PeriodicalIF":1.7,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145929107","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 Campanian–Maastrichtian foraminifera from Sudr Formation, Northern Galala Plateau, Egypt: Implications for biostratigraphy, palaeobathymetry, palaeooxygenation, and palaeoproductivity","authors":"Shahin Abd-Elhameed","doi":"10.1016/j.palwor.2025.200999","DOIUrl":"10.1016/j.palwor.2025.200999","url":null,"abstract":"<div><div>The present study conducts foraminiferal analyses to evaluate the palaeoenvironmental conditions (e.g., palaeobathymetry, palaeooxygenation, and palaeoproductivity) of the upper Campanian–Maastrichtian Sudr Formation at Wadi Askhar El-Bahari, Northern Galala Plateau, Northern Eastern Desert, Egypt. Since the Sudr Formation received no attention concerning the foraminiferal content, a planktonic foraminiferal biostratigraphic framework was constructed, revealing nine (from <em>Globotruncanella havanensis</em> to <em>Plummerita hantkeninoides</em>) biozones. Furthermore, various quantitative and multivariate analyses of the recorded benthic foraminifera were performed to infer the variations in the palaeobathymetry, palaeooxygenation, and palaeoproductivity during the late Campanian–Maastrichtian. Seven benthic foraminiferal clusters were identified through statistical grouping analysis, revealing various distinct assemblages that differ in biotic traits (e.g., life-habit and diversity) and abiotic traits (e.g., oxygen availability and nutrient availability). A multidimensional plotting method (i.e., Non-metric Multidimensional Scaling) of the studied samples revealed eight main biofacies (I–VIII), each with a characteristic faunal composition. The vertical distribution of these biofacies reflects fluctuations in palaeo-water depth, oxygen, and nutrient availability. The lowermost part of the Sudr Formation is characterized by biofacies I, II, and III, indicating well-oxygenated, oligotrophic, outer neritic to upper bathyal environments. This is followed upward by intervals with biofacies II, IV, and V, reflecting oligo- to mesotrophic, upper bathyal environment, with well-oxygenated conditions. The upper half of the Sudr Formation comprises alternating intervals with biofacies IV, V, VII, representing well-oxygenated, mesotrophic, upper bathyal environment, and intervals with biofacies VI and VIII, characterizing poor-oxygenated, eutrophic, outer neritic to upper bathyal environments.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"35 1","pages":"Article 200999"},"PeriodicalIF":1.7,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145929168","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 Pachyportax fossils from the Late Miocene Shuitangba locality, Yunnan, revealing the early Bovini evolution and radiation","authors":"Ding-Ge Guo ,&nbsp;Sayyed Ghyour Abbas ,&nbsp;Qi-Gao Jiangzuo ,&nbsp;Chun-Xiao Li ,&nbsp;Yan-Wu Yang ,&nbsp;Jia-Yong Cao ,&nbsp;Bin Zou ,&nbsp;Shi-Qi Wang ,&nbsp;Xue-Ping Ji","doi":"10.1016/j.palwor.2025.200996","DOIUrl":"10.1016/j.palwor.2025.200996","url":null,"abstract":"<div><div>As a small-sized Bovini, <em>Pachyportax</em>, originated in the Late Miocene Siwaliks and subsequently dispersed to neighbouring regions in Southeast Asia and the Arabian Peninsula, and eventually reached Yunnan, China. However, no fossil material of this genus had been discovered in China prior to this study. Here we report a new species <em>Pachyportax zhaotongensis</em> n. sp., from an important fossil ape locality, the Shuitangba site in Zhaotong, Yunnan, China, dated at approximately 6.2 Ma. The new species displays the diagnostic characteristics of <em>Pachyportax</em>, such as a robust horn core that extends laterally and backward, with a slightly convex medial side and a flatter lateral side, featuring anterior and posterior keels; the cheek teeth are hypsodont, with moderately developed ribs, folds and basal pillars. It also shows some differences from the known species: the horn core insertion is distant from the orbit and shows no significant torsion, and the anterior and posterior keels on the horn core are less pronounced. These advanced characteristics indicated that <em>Pachyportax zhaotongensis</em> n. sp. represents a late evolutionary stage of <em>Pachyportax</em>. This is also the first report of <em>Pachyportax</em> in China. In addition, based on a phylogenetic analysis, we clarify the relationship of <em>Selenoportax</em> and <em>Pachyportax</em>, and briefly explore the evolution and geographical distribution of the two genera.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"35 1","pages":"Article 200996"},"PeriodicalIF":1.7,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145929003","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":"Teredolites clavatus borings in fossil resins and their significance — new data from Cretaceous Lebanese amber","authors":"Błażej Bojarski ,&nbsp;Karolina Cierocka ,&nbsp;Sahar Azar ,&nbsp;Jacek Szwedo","doi":"10.1016/j.palwor.2025.200997","DOIUrl":"10.1016/j.palwor.2025.200997","url":null,"abstract":"<div><div>This study reports the <em>Teredolites clavatus</em> borings within the Early Cretaceous Lebanese amber from the Hammana-Mdeirij outcrop, offering new insights into the taphonomy of a fossil resin. These findings represent one of the oldest known examples of this ichnospecies in fossil resins and are similar in age to borings known from the Jordanian amber. The club-shaped borings produced by marine wood-boring bivalves (most probably piddocks) are interpreted as domichnia belonging to the Teredolites ichnofacies. Four amber pebbles containing well-preserved borings were examined, one of which retains a distinct bioglyph on its interior surface. The impact of interpretation fossil resins as a xylic or lithic substrate is presented, in ichnotaxonomical and paleoenvironmental contexts. The studied specimens support a taphonomic model in which bored amber fragments were reworked and deposited, together with xylite material, during a regressive phase along the Tethyan shoreline. The absence of <em>Apectoichnus</em> and other woodground borings corroborates this interpretation. This study demonstrates the feasibility of using trace fossils in amber for reconstructing depositional environments and enhances the ichnological and paleoecological framework of Lebanese amber-bearing sequences with new data.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200997"},"PeriodicalIF":1.7,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418044","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 earliest sponge spicule tufts from the Cambrian Lower Yanjiahe Formation, Three Gorges area, South China","authors":"Lei Zhang ,&nbsp;Ying Wu ,&nbsp;Fan Zhai ,&nbsp;Chen-Zhang Duan ,&nbsp;Shan-Shan Fu ,&nbsp;Shan Chang ,&nbsp;Yan Ye ,&nbsp;Can Chen ,&nbsp;Xia Wang ,&nbsp;Xian-Guo Lang ,&nbsp;Qing-Lai Feng ,&nbsp;Marie-Béatrice Forel","doi":"10.1016/j.palwor.2025.200995","DOIUrl":"10.1016/j.palwor.2025.200995","url":null,"abstract":"<div><div>As phylogenetically basal metazoans, sponges (phylum Porifera) provide crucial insights into the origins of animal biomineralization and early body plan innovation. However, articulated sponge fossils remain exceptionally rare in Ediacaran–Cambrian transition strata, with most records limited to isolated spicules or ambiguous biomineralized structures. This study reports siliceous and phosphatically preserved sponge spicule tufts from the lower Yanjiahe Formation (∼535 Ma, Fortunian Stage) at the Muyangxi section (eastern Three Gorges area, South China). Dominated by monaxons, with co-occurring pentactine spicules, two morphotypes are distinguished: Type 1 tufts comprise slender, hollow monaxons (mean value of the maximum width: ∼15.9 µm, n = 37) with uniform near-parallel alignment, while Type 2 tufts consist of sturdier phosphatized monaxons (mean value of the maximum width: ∼91.1 µm, n = 135) arranged as subparallel bundles, slightly radially oriented arrangements, and sometimes semi-randomly in single layers, occasionally with perpendicular alignments to the adjacent layers. Small curved oxeas in the Type 2 tufts suggest incipient hierarchical organization. Although fragmentary preservation limits taxonomic resolution, these tufts likely represent the earliest unequivocal biomineralized sponges, potentially corresponding to stem-group Demospongiae and/or Hexactinellida (Silicea). In combination with the previous evidences found from the Ediacaran–Cambrian transition, we hypothesize that early sponge biomineralization was likely monaxon-dominated, with hexactines arising via axial fusion or increased axis number, culminating in hexactinellid diversification by Terreneuvian Stage 2. Integrated with Small Shelly Fossil Zone 1 biochronology, our findings indicate rapid pre-Fortunian to Fortunian-stage spicule enlargement (≤ 200 μm to ≥ 500 μm) and architectural complexification, aligning with early Cambrian ecological escalation. Alternatively, it is possible that the divergence between Hexactinellida and Demospongiae may predate biomineralization, as their last common ancestor may have lacked siliceous spicules. The Yanjiahe spicules illuminate a critical prelude to the Cambrian sponge explosion, bridging Ediacaran soft-bodied ancestors and later diverse, mineralized clades.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200995"},"PeriodicalIF":1.7,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418050","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 conodont taxa and correlation of the upper San Juan Formation, Dapingian (Ordovician), at Potrerillos Creek, Argentine Precordillera","authors":"Matías J. Mango ,&nbsp;Guillermo L. Albanesi","doi":"10.1016/j.palwor.2025.200994","DOIUrl":"10.1016/j.palwor.2025.200994","url":null,"abstract":"<div><div>The present study deals with the conodont fauna and its biostratigraphy recorded in the upper 14 m of the San Juan Formation at the Potrerillos Creek section, northern Central Precordillera of Argentina. The analysis of seven conodont samples from levels of biostratigraphic interest allowed the identification of 10,676 conodont elements, assigned to 41 genera and 59 species. One new genus (<em>Resinodus</em> n. gen.) and two new species (<em>Resinodus nalamamacatus</em> n. gen. n. sp. and <em>Tripodus precolaevis</em> n. sp.) are defined, expanding the knowledge of conodont taxonomy for the Dapingian (Middle Ordovician) in Argentina. Recognition of <em>Tripodus precolaevis</em> n. sp., whose range is restricted to the early–middle Dapingian, supports the definition of the <em>Tripodus precolaevis</em> Zone in the upper San Juan Formation. This biozone potentially correlates with the <em>Baltoniodus triangularis</em> Zone in China and Baltica, and possibly also in northwestern Argentina. The <em>Tripodus precolaevis</em> Zone may correlate with the lower part of the <em>Tripodus laevis</em> Zone and the lower part of the <em>Neomultioistodus compressus</em>/<em>Tricladiodus clypeus</em> Zone in North America. The conodont elements from the Potrerillos Creek section have a CAI of 2.5–3, indicating burial paleotemperatures of 85 °C–200 °C. Most elements display overgrowths of silica crystals, while a few elements have recrystallized surface lamella. These fossilization features may be attributed to diagenetic effects due to intense tectonism in the Andean Orogeny.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200994"},"PeriodicalIF":1.7,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418046","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 ceraphronoid wasps in Cretaceous and Cenozoic ambers from Lebanon, New Jersey, and India (Hymenoptera: Ceraphronoidea)","authors":"Michael S. Engel","doi":"10.1016/j.palwor.2025.200993","DOIUrl":"10.1016/j.palwor.2025.200993","url":null,"abstract":"<div><div>New parasitoid wasps of the superfamily Ceraphronoidea are systematically described and figured in various Cretaceous and Cenozoic ambers, ranging in age from Barremian (Early Cretaceous) to Ypresian (early Eocene). A new family, putatively a stem group to Megaspilidae + Ceraphronidae, is described from a single female in Barremian amber from Lebanon. Ceospilidae n. fam., currently including only the type genus and species — <em>Ceospilus phoenicius</em> n. gen., n. sp. — are distinguished from other ceraphronoids. Two new species of Megaspilidae are described: <em>Conostigmus novacaesarea</em> n. sp. from the Turonian amber of New Jersey, USA and <em>Dendrocerus ypresicus</em> n. sp. from the Ypresian amber of Gujarat, India.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200993"},"PeriodicalIF":1.7,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418042","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 species of Bergeronites (Trilobita, Damesellidae, Bergeronitinae) from the Longha Formation (Cambrian, Guzhangian) in southeastern Yunnan, South China","authors":"Shan-Chi Peng ,&nbsp;Loren E. Babcock ,&nbsp;Xian-Feng Yang ,&nbsp;Tao Dai ,&nbsp;Xue-Jian Zhu","doi":"10.1016/j.palwor.2025.200992","DOIUrl":"10.1016/j.palwor.2025.200992","url":null,"abstract":"<div><div>A new species of damesellid trilobite, <em>Bergeronites leishuae</em> n. sp., is described from the Fulu Biota in the Longha Formation (Cambrian, Guzhangian), southeastern Yunnan Province, South China. <em>Bergeronites leishuae</em> is common in the Fulu Lagerstätte and represented by both disarticulated sclerites and the first complete exoskeletons recorded for the genus. Together, these remains allow for a more thorough understanding of the morphology of this distinctive trilobite genus, both dorsally and ventrally. The new material also allows for further differential comparisons with other species previously assigned to <em>Bergeronites</em>. Specimens showing the ventral cephalic morphology reveal the presence of a short connective suture immediately flanking the sagittal line of the doublure, and a thin, ridge-like rostral plate. They also show the hypostome to be in conterminant condition. Ontogenetic material of <em>B</em>. <em>leishuae</em> is known from meraspid degree 6 through the holaspid stage; it includes the first meraspid-stage specimens known for <em>Bergeronites</em>. As presently known, the geographic distribution of <em>Bergeronites</em> is restricted to the East Asian sector of Gondwana (North China, South China, and Vietnam).</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200992"},"PeriodicalIF":1.7,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418147","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 thick-headed scolebythid wasp (Hymenoptera: Scolebythidae) from the Early Cretaceous Lebanese amber","authors":"Sergio Álvarez-Parra ,&nbsp;Sibelle Maksoud","doi":"10.1016/j.palwor.2025.200990","DOIUrl":"10.1016/j.palwor.2025.200990","url":null,"abstract":"<div><div>Scolebythidae are a family within the Chrysidoidea characterized by their peculiar structure of the mesosoma, with the propleura exposed dorsally and the protrochanters inserted laterally on the procoxae. The family is represented by only nine extant species, which are found in tropical and subtropical forests around the world. Some of these species show evidence of an idiobiont ectoparasitoidism behavior on wood-boring beetle larvae of the families Cerambycidae and Ptinidae. Here, we describe <em>Pachycephalopenesia eximia</em> n. gen. n. sp. from the Early Cretaceous (Barremian) amber-bearing outcrop of Beqaa Kafra, in North Lebanon. This new genus is characterized by the presence of a striking protuberance on the frons between the compound eyes and extending from the antennal sockets to the ocelli, which is unique in the family so far. This finding proves that the morphological disparity in Scolebythidae is higher than previously thought. An updated checklist of the fossil scolebythid species and a key to the species from the Lebanese amber are included.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200990"},"PeriodicalIF":1.7,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418051","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 representative of the roachoid family Necymylacridae (stem group Dictyoptera) and associated vegetation with insect interactions from the Shanxi Formation (lower Permian), China","authors":"Artai A. Santos ,&nbsp;Stephen Mcloughlin ,&nbsp;André Nel","doi":"10.1016/j.palwor.2025.200991","DOIUrl":"10.1016/j.palwor.2025.200991","url":null,"abstract":"<div><div>A new roachoid species, <em>Necymylacris sinica</em> n. sp., is described from the lower Permian (Asselian, Cisuralian) Shanxi Formation in the Qinshui Basin, North China, based on a partially preserved forewing. This discovery represents the second record of the family Necymylacridae in China and the first from the Shanxi Formation in the Qinshui Basin. The holotype was found co-preserved with a low-diversity assemblage of 14 plant taxa (among 263 fossil-plant specimens), dominated by cordaitalean leaves (<em>Cordaites principalis</em> and <em>Cordaites</em> sp.) and pteridophytes (morphogenera <em>Pecopteris</em> spp.), with lesser proportions of sphenophytes, lycophytes, and seed ferns. The fossil flora and regional geological data suggest a warm, humid, low-diversity forest ecosystem in non-seasonal climates of palaeotropical Cathaysia. Evidence of plant-insect interactions, such as margin feeding, hole feeding, piercing and sucking, galling, oviposition, and seed predation, reveals that a diverse array of herbivorous insects with varying feeding strategies inhabited the Permian palaeoforest of the Qinshui Basin. These findings provide new information about the ecological complexity of early Permian palaeotropical forests during the peak of the Late Paleozoic Ice Age and new insights into the palaeoecology and biodiversity of Cathaysia during this period. The study underscores the importance of historical collections, such as those at the Swedish Museum of Natural History, in advancing our understanding of ancient ecosystems. Taxonomically, <em>Stephanotermopsis rodendorfi</em> <span><span>Laurentiaux, 1966</span></span> is transferred into the family Necymylacridae.</div></div>","PeriodicalId":48708,"journal":{"name":"Palaeoworld","volume":"34 6","pages":"Article 200991"},"PeriodicalIF":1.7,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418148","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}