Article
Geology
Jean -Michel Bichain, Adrienne Jochum, Jean-Marc Pouillon, Thomas A. Neubauer
Summary: Land snails preserved in mid-Cretaceous Burmese amber have attracted paleontologists' interest, and a new species from the genus Archaeocyclotus is described in this paper. The well-preserved fossil was examined using light microscopy and micro-CT scans, revealing short and densely implanted hairs on the shell. This discovery supports the hypothesis that hairiness is an ancestral state in cyclophorid snails, possibly providing selective advantages during the group's terrestrialization in the Mesozoic.
CRETACEOUS RESEARCH
(2022)
Article
Zoology
Manfred R. Ulitzka
Summary: In this study, 11 new species and four new genera of the Rohrthripidae, a family of fossil thrips, are described from Burmese Cenomanian amber. Additionally, a species from Spanish Cretaceous amber is reinterpreted as male and placed into the Rohrthripidae. The study also provides a tighter definition and more detailed description of important character states for the Rohrthripidae.
Article
Geology
Igor A. Balashov, Evgeny E. Perkovsky, Dmitry V. Vasilenko
Summary: Burminella artiukhini, a new species of a new genus found in mid-Cretaceous Burmese amber, exhibits intermediate characteristics between Pupinidae and other families of Cyclophoroidea. The unique characteristics of its relatively high shell with 8.5 whorls, oblique aperture, and wide conical shell suggest that it may represent an ancestral morphological group transitional between Pupinidae and other Cyclophoroidea families.
CRETACEOUS RESEARCH
(2021)
Article
Geology
Yafei Xin, Tongyao Jiang, Yanfeng Tong, Zhiyuan Yao, Shuqiang Li
Summary: Three new species from mid-Cretaceous Burmese amber, belonging to genera Burmorchestina Wunderlich, 2008 and Orchestina Simon, 1882 of the spider family Oonopidae Simon, 1890, are described. Additionally, males of six species of Burmorchestina are illustrated in this study.
CRETACEOUS RESEARCH
(2021)
Article
Geology
Igor Balashov
Summary: A new species of Euthema, E. annae sp. nov., is described based on two shells in Burmese amber, along with a redescribing of the genus and recognition of a new synonym. A list of all molluscan species in Burmese amber is provided, and reassignment of one species to another genus. The taxonomic diversity and abundance of molluscs in Burmese amber are discussed, highlighting the prevalence of Cyclophoroidea. The absence of certain pulmonate species in Burmese amber is also noted.
CRETACEOUS RESEARCH
(2021)
Article
Geology
Kei Uchida
Summary: Two new genera and species of Elcanidae, Hukawnelca gracile gen. et sp. nov. and Caelielca spinocrus gen. et sp. nov., were discovered in mid-Cretaceous Burmese amber, showing unique anatomical and morphological characteristics that differentiate them from earlier Elcanid species.
CRETACEOUS RESEARCH
(2022)
Article
Geology
Carolin Geissler, Ulrich Kotthoff, Joerg U. Hammel, Mark S. Harvey, Danilo Harms
Summary: This paper presents the first fossil record of the pseudoscorpion family Ideoroncidae and establishes the new genus Proalbiorix, showing morphological features aligning it with present-day fauna from the Americas and Africa. The study highlights the relative morphological stasis of pseudoscorpions compared to other arachnid lineages and the establishment of major clades of pseudoscorpions before the Cretaceous period.
CRETACEOUS RESEARCH
(2022)
Article
Geology
Emmanuel Arriaga-Varela, Karol Szawaryn, Josh Jenkins Shaw, Ming Bai, Dong Ren, Wioletta Tomaszewska
Summary: The diversity of fossil handsome fungus beetles (Coleoptera: Endomychidae) is not fully understood, but recent efforts have been made to document them. Several different taxa from mid-Cretaceous amber in northern Myanmar have been recently discovered and described, representing the oldest known members of certain subfamilies or placed as incertae sedis within the family. This study describes three new species of the genus Cretaparamecus and discusses the morphological and species diversity of the genus in mid-Cretaceous amber of northern Myanmar. FT-IR spectra were obtained to confirm the origin and age of the amber pieces studied.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Vladimir N. Makarkin
Summary: Microsisyra carsteni gen. et sp. nov., a new species of Sisyridae from the mid-Cretaceous Burmese amber in Northern Myanmar, is described in this article. This new genus exhibits unique characteristics, including the presence of six branches of RP in the fore- and hind wings, two crossveins between branches of RP in the inner series of crossveins in the hind wing, and a very long basal crossvein 1r-m connecting M and the basal branch of RP in the hind wing. The structure of maxillary palpi, venation, and male genitalia of Microsisyra gen. nov. is most similar to the Eocene genus Paleosisyra.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Yan Zheng, De Zhuo, Haiyan Hu, Jun Chen, Qi Zhang, Haiguang Zhang, Haichun Zhang, Alexandr P. Rasnitsyn
Summary: A new genus and species of tiphiid wasps, Burmatiphia mandibulata, are described and classified as a new subfamily under Burmatiphiinae. The new taxon exhibits both primitive and derived characteristics and is believed to have hunted for prey in underground tunnels.
CRETACEOUS RESEARCH
(2022)
Article
Geology
Tingting Yu, De Zhuo, Barna Pall-Gargely
Summary: In recent years, the inclusion of terrestrial mollusks in Kachin amber has attracted increasing interest from paleontologists. In this study, a new genus called Cretadiostoma gen. nov. is described, which includes two new species (C. caperatum sp. nov., C. umbilicarinatum sp. nov.) of the gastropod family Pupinidae based on specimens from mid-Cretaceous Kachin amber. Additionally, a second species of the genus Coptocheilus Gould, 1862 from Kachin amber, namely Coptocheilus kachinensis sp. nov., is described. An overview of the Pupinidae species found in Kachin amber is provided, and the radiation and morphological comparison of Pupinidae (Caenogastropoda: Cyclophoroidea) is discussed based on 12 species belonging to seven genera from Kachin amber. (c) 2022 Elsevier Ltd. All rights reserved.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Qiang Xuan, Chenyang Cai, Diying Huang
Summary: The study describes two immature chaerilids from mid-Cretaceous amber of northern Myanmar using multiple imaging methods, which can be unequivocally assigned to Chaerilus in family Chaerilidae based on various characteristics.
CRETACEOUS RESEARCH
(2023)
Article
Paleontology
Kei Uchida
Summary: Three new specimens of Pelecinidae from mid-Cretaceous Burmese amber were examined and described. These specimens, Ampluspelecinus robustus and Eopelecinus diminutivum, are characterized by their mesosoma, metasoma, and wing venation. The study also reports the description of both male and female specimens, which is unusual for pelecinid wasps.
Article
Geology
De Zhuo, Jun Chen, Shuai Yu, Yan Zheng, Guangying Ren, Baizheng An, Fei Yang
Summary: The fifth yuripopovinid specimen from mid-Cretaceous Kachin amber is described and a new species, Caulisoculus monlyae, is erected based on this specimen. The distinct features of Caulisoculus monlyae include perpendicular eyestalks, spherical compound eyes, slightly sclerotized and darkly pigmented hemelytra, and a membrane with three large subparallel cells. This new find indicates a high diversity of the extinct true bug family Yuripopovinidae in the late Mesozoic.
CRETACEOUS RESEARCH
(2022)
Article
Geology
Philipp Wagner, Edward L. Stanley, Juan D. Daza, Aaron M. Bauer
Summary: The newly described amber-embedded fossil represents an early species of the lizard family Agamidae, dating back to around 99 million years ago in northern Myanmar. This finding could serve as a calibration point for divergence-time analyses and challenges the view that agamids colonized Southeast Asia during the Paleogene.
CRETACEOUS RESEARCH
(2021)
Article
Biology
Lida Xing, Kecheng Niu, Donghao Wang, Bruce M. Rothschild, Susan E. Evans
Summary: Yabeinosaurus is a common and relatively well-known lizard genus found in the Chinese Lower Cretaceous Jehol Biota, with previous research revealing information on its morphology, phylogenetic position, colouration, diet, and viviparous reproductive strategy. A new specimen described in this study preserves the skull and postcranial skeleton, with notable features such as a malformation of the fibula resulting from a previous fracture.
HISTORICAL BIOLOGY
(2021)
Article
Geology
Lida Xing, W. Scott Persons, Stephan Lautenschlager, Donghao Wang, Kecheng Niu
Summary: This study presents the discovery of a non-avian theropod manus claw and associated caudal vertebrae, indicating an ornithomimosaur affinity. The morphological features of the claw are consistent with basal ornithomimosaur manual unguals.
CRETACEOUS RESEARCH
(2021)
Article
Geology
Lida Xing, Martin G. Lockley, Zikun Jiang, Hendrik Klein, W. Scott Persons, Peifu Zhang, Xiaoqiao Wan
Summary: Sauropod tracks, especially those attributed to Brontopodus, are increasingly recognized in the Jurassic and Cretaceous of China. Variations in manus rotation angles can be useful in distinguishing morphotypes and diagnostic gaits in sauropod ichnology, with some distinct differences observed in different regions. The tracks from the Tuchengzi Formation provide a valuable basis for future discussions on the ichnotaxonomy of sauropod trackways.
CRETACEOUS RESEARCH
(2021)
Article
Multidisciplinary Sciences
Lida Xing, Martin G. Lockley, Chengkai Jia, Hendrik Klein, Kecheng Niu, Lijun Zhang, Liqi Qi, Chunyong Chou, Anthony Romilio, Donghao Wang, Yu Zhang, W. Scott Persons, Miaoyan Wang
Summary: The rich tetrapod ichnofaunas from the Huangyangquan Reservoir in Xinjiang, China, have provided a significant source of large Lower Cretaceous track collections. These assemblages, primarily consisting of avian and non-avian theropods, pterosaurs, turtles, and stegosaurs, are representative of lacustrine basin faunas and exemplify the shorebird ichnocoenosis concept. The Huangyangquan site represents an important ecosystem from the Lower Cretaceous period, with over 1,500 identified tracks contributing to the understanding of this region's paleobiology.
Article
Multidisciplinary Sciences
Javier Luque, Lida Xing, Derek E. G. Briggs, Elizabeth G. Clark, Alex Duque, Junbo Hui, Huijuan Mai, Ryan C. McKellar
Summary: Amber fossils provide valuable insights into the anatomy, biology, and ecology of extinct organisms. In this study, the first record of true crabs in amber from the Cretaceous of Myanmar is presented, shedding light on the evolutionary history of crabs and providing a calibration point for molecular divergence time estimates. The fossil, with its well-preserved features, bridges the gap between molecular divergence predictions and the fossil record, providing important information on the evolutionary timeline of higher crown eubrachyurans.
Article
Geology
Lida Xing, Yan Wang, Martin G. Lockley, Mengmeng Li, Lianfeng Gao, Zhigang Yin, Anthony Romilio, W. Scott Persons, Miaoyan Wang, Xing Xu, Xiaoqiao Wan
Summary: This study provides a detailed description of dinosaur tracks from the coal-bearing beds of the Fuxin Formation in Liaoning Province, northeastern China. The tracks reveal a diversity of theropod track morphotypes, adding to our knowledge of the dinosaur fauna in this area.
CRETACEOUS RESEARCH
(2022)
Article
Biology
Donghao Wang, Lida Xing, Bruce M. Rothschild, W. Scott Persons, Jian Liu
Summary: This article reports a new skull of Parataxidea, an omnivorous mustelid from the Late Miocene-Early Pliocene period, found in China. The skull shows abnormal cellular hyperplasia and bone growth, similar to ossifying fibromas observed in humans. The tumors were not the direct cause of death, but likely interfered with normal feeding due to tooth loss.
HISTORICAL BIOLOGY
(2023)
Article
Geology
Kecheng Niu, Lida Xing
Summary: The record of dinosaur footprints in China has been sparse compared to the abundance of skeletal body fossils. However, a new discovery in Longxiang Village, Fujian Province, has revealed the largest known Upper Cretaceous dinosaur track assemblage in China, as well as the first recorded evidence of dinosaurs in Fujian Province. The tracks include various sizes of ornithopod tracks, scarce sauropod and small-medium tridactyl theropod tracks, and the absence of large forms. The presence of different deinonychosaur tracks is particularly remarkable. This unusual dinosaur track assemblage from Longxiang enhances our understanding of dinosaur evolution in Late Cretaceous faunas in East Asia.
CRETACEOUS RESEARCH
(2023)
Article
Geology
Miaoyan Wang, Lida Xing, Kecheng Niu, Qingqing Liang, Susan E. Evans
Summary: Although the Hyphalosaurus, a highly specialized long-necked choristodere species from the Early Cretaceous Jehol Biota in China, has been well studied, the integumentary features of this genus have only been partially described. A new specimen from Liaoning Province, China provides additional details about the scale shapes and arrangement, as well as the presence of webbed limbs. These new findings enhance our understanding of the appearance and adaptation of Hyphalosaurus in its aquatic habitat.
CRETACEOUS RESEARCH
(2023)
Review
Biology
Lida Xing, Hendrik Klein, Martin G. Lockley, Haipeng Li, Bolin Tong, Yong Ye, Hui Dai, Chou Chunyong, Donghao Wang, Anthony Romilio, W. Scott Iv Persons
Summary: This paper reports on five new dinosaur track sites in Chaya County, indicating the presence of sauropods and thyreophoran trackways in the region. The sauropod tracks in Chaya show distinct characteristics compared to those in Changdu. The analysis of these tracks contributes to our understanding of dinosaur faunas in this region.
HISTORICAL BIOLOGY
(2023)
Article
Biology
Lida Xing, Anthony Romilio, Yi Wang, Lei Yang, Donghao Wang
Summary: Recently, dinosaur footprints from the Lower Jurassic Zhanghe Formation were discovered in Yimen County, Yunnan Province. This is the first time dinosaur tracks have been found in this formation, as previous records only consisted of body fossils. The discovery revealed two morphotypes, suggesting small dinosaurs swam and punted in aqueous environments. The orientation of the tracks indicated different movements relative to water flow, but no evidence of gregarious behavior was found. This discovery expands our understanding of dinosaur swimming behavior and track morphologies in China.
HISTORICAL BIOLOGY
(2023)
Article
Biology
Lida Xing, Jens N. Lallensack, Anthony Romilio, Yi Wang, Lei Yang
Summary: Rare elongate tracks with metatarsal marks attributed to theropod dinosaurs have been discovered in Yunnan Province, China. These tracks provide new insights into the locomotion and behavior of Early Jurassic theropod dinosaurs and highlight the importance of Yunnan Province in the study of dinosaur tracks in China.
HISTORICAL BIOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Li -Da Xing, Martin G. Lockley, Bo-Lin Tong, Hendrik Klein, Chang Liu, W. Scott Persons
Summary: This study re-examined a previously partially lost tracksite in the Santai Formation of Shandong Province, China. New excavations revealed additional pterosaur tracks and a possible deinonychosaurian track. The age of the Santai Formation is controversial, but it is likely Late Jurassic, and the pterosaur tracks may be older than previously reported.
JOURNAL OF PALAEOGEOGRAPHY-ENGLISH
(2023)
Article
Geology
Lida Xing, Martin G. Lockley, Guangzhao Peng, Hendrik Klein, Yong Ye, Anthony Romilio, Shan Jiang, Chang Liu, Yu Liu, W. Scott Persons
Summary: This article reports the discovery of dinosaur tracks in the courtyard of a restaurant in Leshan City, Sichuan Province, China, which gained international attention due to its unusual location. Detailed analysis revealed that these tracks originated from the Jiaguan Formation, a track-rich area in the Lower Cretaceous period, and they are typical Brontopodus type sauropod tracks, representing the saurischian dominated ichnofauna of the Sichuan Basin during this epoch. Furthermore, studies on the weathering of the Leshan Buddha at Mount Lingyun, a world heritage site located only 5.5 km away from the restaurant, showed similar lithologies that allowed estimation of weathering rates.
CRETACEOUS RESEARCH
(2023)
Review
Geosciences, Multidisciplinary
Li-Da Xing, Martin G. Lockley, Hendrik Klein, Li-Jun Zhang, Anthony Romilio, W. Scott Persons, Guang-Zhao Peng, Yong Ye, Miao-Yan Wang
Summary: The Jiaguan Formation and Feitianshan Formation in Sichuan Province have yielded a variety of dinosaur tracks, with six theropod ichnogenera identified but not classified at the species level. The newly named Eubrontes nobitai ichnosp nov. represents the first Cretaceous Eubrontes ichnospecies from Asia.
JOURNAL OF PALAEOGEOGRAPHY-ENGLISH
(2021)
Article
Geology
Jimmy de Rooij, Sybrand A. N. Lucassen, Charlotte Furer, Anne S. Schulp, P. Martin Sander
Summary: This study presents a detailed osteohistological analysis on Triceratops horridus and Triceratops cf. prorsus specimens, aiming to understand the growth and development of ceratopsids. The analysis reveals a distinct pattern of bone tissue growth in Triceratops limb elements, but also suggests that taxonomic ambiguity between Torosaurus and Triceratops cannot be solely resolved based on histological data.
CRETACEOUS RESEARCH
(2024)
Review
Geology
J. R. Ovando-Figueroa, J. A. Moreno-Bedmar, M. Company, J. A. Jacobo-Delgado
Summary: This article presents a review of ammonoid specimens from the Berriasian and Valanginian age in Zacatecas, Mexico. The study includes updated museographic information, new images, and 3D models of the specimens. Taxonomic identification has revealed six species and two genera. Stratigraphic range data suggests that the specimens belong to the uppermost upper Berriasian to lower Valanginian interval, with several biozones identified. Additionally, a paleobiogeographic analysis indicates a clear affinity with contemporaneous ammonoid assemblages from the Mediterranean region.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Jake Kotevski, Ruairidh J. Duncan, Adele H. Pentland, James P. Rule, Patricia Vickers-Rich, Thomas H. Rich, Erich M. G. Fitzgerald, Alistair R. Evans, Stephen F. Poropat
Summary: The cranial remains of non-avian theropod dinosaurs from the Cretaceous period in Australia are poorly understood. This study presents new evidence of non-mandibular cranial material, possibly belonging to the Megaraptoridae family, and contributes to the limited knowledge of Australian Cretaceous theropod cranial remains.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Josh Jenkins Shaw, Alexey Solodovnikov, Evgeny E. Perkovsky
Summary: A fossil of the monogeneric rove beetle subfamily Trichophyinae (genus Trichophya) has been discovered in the Upper Cretaceous Taimyr amber from northern Siberia. This finding indicates the morphological differences between ancient and modern Trichophya species groups. By comparing the morphology, distribution, and habitat requirements of extant species, the taxonomy, biogeography, and paleoecology of the Trichophya in Taimyr amber can be better understood.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Martin Kostak, Frank Wiese, Zuzana Kozlova, Adam Culka, Martin Mazuch, Martin Soucek
Summary: A well-preserved fossil of an upper Cretaceous acanthoceratoid ammonite has been discovered in the Bohemian Cretaceous Basin, providing important insights into the jaw anatomy of these extinct organisms.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Gustavo Santiago, Marcelo de Araujo Carvalho, Renato Rodriguez Cabral Ramos, Sandro Marcelo Scheffler
Summary: The Santa Marta Formation in the Antarctic Peninsula is an important sedimentary sequence that provides insights into paleoenvironmental changes. The distribution of sedimentary organic matter reveals three distinct palynofacies associations and shows a progressive transgression from terrestrial to marine environments.
CRETACEOUS RESEARCH
(2024)
Article
Geology
B. J. Vazquez, D. Castanera, B. Vila
Summary: In Europe, the fossil record of sauropods in the uppermost Cretaceous is mainly found in Spain, France, and Romania. Recently, a significant discovery of titanosaurs' teeth was made in Els Nerets, Spain, which contains the largest tooth sample from the Late Cretaceous in Europe. The teeth show distinct characteristics but cannot be attributed to any known European species. Based on tooth morphology and wear facets distribution, a new taxon is proposed.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Youssef S. Bazeen, Walid G. Kassab, El Sayed M. Moneer, Gebely A. Abu El-Kheir, Mohamed K. Abdelgawad, Haitham M. Ayyad
Summary: This study investigates the Maastrichtian-Danian succession in the Abu Minqar section of the Western Desert of Egypt, using an integrated analysis of biostratigraphy and chemostratigraphy. The results suggest that regional tectonics played a substantial role in the depositional history and paleoenvironmental circumstances of the southern Tethys margin.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Fernando R. Rios, Ana M. P. Mizusaki, Rualdo Menegat, Isaque C. Rodrigues
Summary: This study examines the temporal and spatial relationships between fluvio-aeolian, aeolian, and volcanic systems in the southernmost part of the Parana Basin during the Late Jurassic and Early Cretaceous. By analyzing facies and architectural elements, the evolution of the volcano-sedimentary record is reconstructed.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Antonio M. Casas, Arsenio Munoz, Alberto Tella, Carlos L. Liesa
Summary: This work proposes the application of magnetic surveying to study the cyclicity in sedimentary basins. Through measuring the total magnetic field and vertical magnetic gradient, the short-wavelength magnetic anomalies associated with the sedimentary sequence can be analyzed, providing information about the magnetic susceptibility and magnetic remanence of different sedimentary units. The cyclostratigraphic analysis reveals the existence of various cycles and enables the dating of the basin fill, offering new constraints for basin evolution.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Ottilia Szives, Josep A. Moreno-Bedmar, Beatriz Aguirre-Urreta, Miguel Company, Camille Frau, Mikel Lopez-Horgue, Antoine Pictet, Izabela Ploch, Christian Salazar, Ricardo Barragan, Jean -Louis Latil, Jens Lehmann, Stephane Reboulet, Emmanuel Robert
Summary: The 7th meeting of the IUGS Lower Cretaceous Ammonite Working Group discussed important changes in the geological age classification, including adjustments and improvements to the upper Tithonian-Berriasian, upper Aptian, and Albian stages. The meeting also discussed the Valanginian and Hauterivian stages, and provided discussions on zonal indices and units, emphasizing the use of interval zones and subzones.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Felix Schlagintweit, David Gercar, Bostjan Rozic
Summary: A mixed assemblage of planktonic and benthonic foraminifera has been found in the Lower Flyschoid Formation in the western part of the Slovenian Basin. These findings provide valuable insights into the biostratigraphy and paleogeographic configuration of the region during the Early to Middle Cretaceous.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Arkaprava Mukhopadhyay, Debarati Chattopadhyay, Arghya Poddar, Ranita Saha, Sachin Patil, Tushar Sonkar, Sujoy Das, Rudranil Basak, Shubhabrata Paul, Arindam Roy
Summary: Predator-prey interaction exerts significant selection pressure on the evolutionary pathways of both parties. This research presents a new dataset of gastropod drilling predation on molluscan prey from the Upper Cretaceous, highlighting the influence of drilling predation during this period. The study utilizes a hybrid method of surface sampling without physically breaking the host rock. Findings suggest that drilling predation was an established form of predation during the Late Cretaceous, yet remains understudied.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Dany Azar, Andre Nel
Summary: Lebanoaktassia curiosa is a new genus and species of strange dragonfly, representing the first Gondwanan species of the family Aktassiidae. It was found in Hjoula, Lebanon, along with two endemic dragonfly families, suggesting a possible connection to an island insular system in the Early Cretaceous.
CRETACEOUS RESEARCH
(2024)
Article
Geology
Pablo M. Villegas, A. Martin Umazano, Marcelo Krause, Mariana Brea
Summary: Conifer fossil woods from the Campanian Puntudo Chico Formation were studied, confirming the presence of Brachyoxylon currumillii and the introduction of Cupressinoxylon sp. cf. C. artabeae in the formation. The new specimens of Podocarpoxylon mazzonii suggest that this taxon is common in the Cretaceous to Eocene floristic assemblages. The growth-ring analysis of these fossil trees indicates their development under temperate and humid conditions, with slight sensitivity from year to year and a terminal event representing a cessation or retardation of cambial activity. Other paleoclimatic proxies suggest a temperate-warm and humid depositional environment with some semi-arid events in the Puntudo Chico Formation.
CRETACEOUS RESEARCH
(2024)
