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2025 in paleontology GudangMovies21 Rebahinxxi LK21
Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils. This includes the study of body fossils, tracks (ichnites), burrows, cast-off parts, fossilised feces (coprolites), palynomorphs and chemical residues. Because humans have encountered fossils for millennia, paleontology has a long history both before and after becoming formalized as a science. This article records significant discoveries and events related to paleontology that occurred or were published in the year 2025.
Flora
= Plants
=
= Fungi
=
Cnidarians
= Cnidarian research
=
Evidence from the study of specimens of Sphenothallus cf. longissimus from the Ordovician (Katian) strata in Estonia, indicative of enhanced phosphatic biomineralization in the studied cnidarian, is presented by Vinn & Madison (2025).
Arthropods
Brachiopods
= Brachiopod research
=
A study on the taxonomic diversity of Mediterranean brachiopods throughout the Jurassic and Early Cretaceous, providing evidence of faunal losses coinciding with oceanic anoxic events, is published by Vörös & Szives (2025).
Molluscs
Echinoderms
= Echinoderm research
=
Guenser et al. (2025) report evidence of concentration of research on the fossil record of stylophorans in the higher-income countries, regardless of the origin of the studied fossil material, throughout the history of the study of this group, including evidence that the majority of studies on fossils from the Global South published between 1925 and 1999 did not include local collaborators, and evidence of transfer of fossil material from countries of the Global South to countries of the Global North.
Conodonts
= Conodont research
=
A study on the phylogenetic relationships, biogeography and biostratigraphy of members of the genus Gnathodus is published by Wang, Hu & Wang (2025).
Fish
Amphibians
= Amphibian research
=
Redescription of the anatomy of Calligenethlon watsoni is published by Adams et al. (2025).
A study on the parasphenoids of Early Triassic trematosauroids and capitosaurs from the European part of Russia, providing evidence of differences of the levator scapulae muscles of the studied temnospondyls that were likely related to differences of their lifestyles, is published by Morkovin (2025).
A study on the structure of tissue of the dermal pectoral bones of Metoposaurus krasiejowensis is published by Kalita, Teschner & Konietzko-Meier (2025).
Jenkins et al. (2025) redescribe the skull of Hapsidopareion lepton, consider Llistrofus pricei to represent a junior synonym of this species, and reevaluate the affinities of recumbirostrans, recovering them as a clade of stem-amniotes.
Reptiles
Synapsids
= Non-mammalian synapsids
=
Synapsid research
Medina et al. (2025) provide new information on the anatomy of the cranial endocast of Massetognathus pascuali, and describe the maxillary canal of the studied cynodont.
New specimen of Exaeretodon riograndensis, providing new information on the postcranial anatomy of members of this species, is described by Kerber et al. (2025).
New information on the skull anatomy of Trucidocynodon riograndensis is provided by Kerber et al. (2025).
Dotto et al. (2025) describe fossil material of a prozostrodontian cynodont from the Upper Triassic strata from the Buriol site (Hyperodapedon Assemblage Zone, Brazil), providing new information on the morphological diversity of teeth of Carnian probainognathians.
Hai et al. (2025) describe a mandible of a juvenile specimen of Sinoconodon rigneyi from the Lower Jurassic Lufeng Formation (China), providing new information on tooth replacement in members of this species.
Tumelty & Lautenschlager (2025) study the skull anatomy of Hadrocodium wui, and interpret the studied mammaliaform as not fully fossorial.
= Mammals
=
Other animals
= Other animal research
=
Wu et al. (2025) describe fossil material of Charnia masoni and C. gracilis from the Ediacaran Zhoujieshan Formation (China), extending known geographic distribution of Charnia and demonstrating that it likely persisted into the latest Ediacaran.
A study on possible causes of decline of stromatoporoid diversity during the early Devonian is published by Stock et al. (2025).
Evidence from the study of Cambrian scalidophoran fossils, interpreted as indicating that the ventral nerve cord was ancestrally unpaired in scalidophorans, priapulids and possibly ecdysozoans in general, is presented by Wang et al. (2025).
Slater (2025) describes Cambrian protoconodonts preserved as small carbonaceous fossils from the Lontova Formation (Estonia) and from the Borgholm Formation (Sweden), and interprets the studied fossils as indicating that bilaterians with chaetognath-like grasping spines diverged by the latest Ediacaran.
A study on fossil material of the tommotiid Lapworthella fasciculata from the Cambrian strata in Australia is published by Bicknell et al. (2025), who report evidence of increase of thickness of sclerites of L. fasciculata and increase of the frequency of perforated sclerites through time, and interpret these findings as the oldest evidence of evolutionary arms race between predator and prey reported to date.
Vinn et al. (2025) describe soft body impressions of Devonian tentaculitids from Armenia, and interpret reconstructed muscle system of tentaculitids as supporting their placement within Lophotrochozoa and possibly within Lophophorata.
New information on the morphology and growth pattern of the microconchid species Aculeiconchus sandbergi is provided by Opitek et al. (2025).
Ma et al. (2025) describe fossil material of Pomatrum cf. P. ventralis from the Balang Formation (China), extending known range of this species to Cambrian Stage 4 and representing its first known record from outside the Chengjiang Biota.
Foraminifera
Other organisms
= Research on other organisms
=
Saint Martin et al. (2025) identify body fossils of Palaeopascichnus in the Neoproterozoic Histria Formation (Romania), providing evidence of the Ediacaran age of the studied formation.
History of life in general
Evidence from experiments with algal-derived particulate matter in conditions similar to those of the late Neoproterozoic water column, interpreted as indicating that the appearance of algal particulate matter at the seafloor during the Neoproterozoic rise of the algae likely stimulated growth and activity of phagotrophs living in the anoxic conditions, is presented by Mills et al. (2025).
Review of changes of organismal and community ecology during the Ediacaran-Cambrian transition is published by Mitchell & Pates (2025)
Reijenga & Close (2025) study the fossil record of Phanerozoic marine animals, and argue that purported evidence of a relationship between the duration of studied clades and their rates of origination and extinction can be explained by incomplete fossil sampling.
Maletz et al. (2025) revise Paleozoic fossils with similarities to feathers, and interpret the studied fossil material as including remains of macroalgae, hydrozoan cnidarians and graptolites.
Revision of the Cambrian fauna from the Sæterdal Formation (Greenland), including fossils of trilobites, brachiopods and a hyolith, is published by Peel (2025).
Mussini & Butterfield (2025) report the discovery of a new assemblage of small carbonaceous fossils from the Cambrian Hess River Formation (Northwest Territories, Canada), including remains of wiwaxiids, annelids, brachiopods, chaetognaths, scalidophorans, arthropods and pterobranchs.
A Burgess-Shale-type fauna occupying a peritidal habitat near the outer margin of a sea is described from the Cambrian (Guzhangian) Pika Formation (Alberta, Canada) by Mussini, Veenma & Butterfield (2025), providing new information ecological tolerances of Cambrian marine animals.
Evidence from the study of the trace fossil record ranging from the Ediacaran to the Devonian, interpreted as indicative of establishment of modern-style deep-marine benthic ecosystem during the Ordovician after 100 million years of protracted evolution, is presented by Buatois et al. (2025).
Vinn et al. (2025) report new evidence of symbiotic associations between worms and tabulate corals from the Ordovician and Silurian strata in Estonia, including evidence of symbiotic relationships between tabulates and cornulitids spanning from the late Katian to the Ludfordian.
Zong et al. (2025) report the discovery of a new assemblage of well-preserved fossils (the Huangshi Fauna) in the Silurian (Rhuddanian) strata in south China, including fossils of sponges, cephalopods, arthropods and carbon film fossils of uncertain identity.
A study on the mandibular morphology of Devonian to Permian stem and crown tetrapods is published by Berks et al. (2025), who report evidence of a spike in morphological diversity in the Gzhelian, interpreted as related to the evolution of herbivory.
A study on the assemblage of fossil teeth from the Middle Triassic (Anisian) strata from the Montseny area (Spain), providing evidence of presence of capitosaur temnospondyls, procolophonids, archosauromorphs and indeterminate diapsids, is published by Riccetto et al. (2025).
Evidence of similarity of processes of reef rubble consolidation and regeneration observed in Late Triassic reefs from the Dachstein platform (Austria) and in modern coral reefs is presented by Godbold et al. (2025).
Stone et al. (2025) compare the composition of Pliensbachian reefs from lagoonal and platform edge settings in the Central High Atlas (Morocco), and identify environmental differences resulting in development of two different reef types.
Evidence from the study of the fossil record of Early Jurassic brachiopods, gastropods and bivalves from the epicontinental seas of the north-western Tethys Ocean, indicative of a relationship between the thermal suitability of the studied animals and changes of their occupancy in response to climate changes during the Pliensbachian and Toarcian, is presented by Reddin et al. (2025).
Perea et al. (2025) report the discovery of bioerosion traces on dinosaur bones from the Upper Cretaceous Guichón Formation (Uruguay), interpreted as likely produced by beetles (probably dermestids) and small vertebrate scavengers (possibly multituberculate mammals).
Lallensack, Leonardi & Falkingham (2025) organized a comprehensive list of 277 terms used in tetrapod trace fossil research.
Other research
Evidence of a link between marine iodine cycle and stability of the ozone layer throughout Earth's history, resulting in an unstable ozone layer until approximately 500 million years ago that might have restricted complex life to the ocean prior to its stabilization, is presented by Liu et al. (2025).
Evidence of slow accumulation of Australian sediments preserving Archean mudrocks with high organic content is presented by Lotem et al. (2025), who interpret their findings as consistent with lower primary productivity in Archean than in present times.
Cowen et al. (2025) study the geochemistry of dental tissue of Devonian fish fossils from Svalbard (Norway) and Cretaceous lungfish and plesiosaur fossils from Australia, and interpret their findings as indicative of preservation of the primary chemical composition of the bioapatite in the studied fossils.
Albert et al. (2025) provide new information on the Cretaceous Densuș-Ciula Formation (Romania), reporting evidence indicating that the lower part of the formation covers part of the Campanian, and evidence indicating that the shift from marine to continental deposition recorded in the formation happened by middle late Campanian.
Rodiouchkina et al. (2025) report evidence interpreted as indicating that the amount of sulfur released by Chicxulub impact was approximately 5 times lower than inferred from previous estimates, resulting in milder impact winter scenario during the Cretaceous-Paleogene transition.
= Paleoclimate
=
Evidence of low atmospheric CO2 levels throughout the main phase of the late Paleozoic icehouse, and of rapid increase in atmospheric CO2 between 296 and 291 million years ago, is presented by Jurikova et al. (2025).
Lu et al. (2025) report evidence from the study of palynological assemblages and clay mineralogy of the Kazuo Basin (Liaoning, China) indicative of a dry and hot climatic event during the early Aptian, interpreted as likely synchronous with the Selli Event.
Evidence indicating that abrupt climate changes during the Last Glacial Period increased pyrogenic methane emissions and global wildfire extent is presented by Riddell-Young et al. (2025).
Geochemical evidence from the study of a speleothem from the Herbstlabyrinth Cave (Germany), interpreted as indicating that the Laacher See eruption was not directly linked to the Younger Dryas cooling in Greenland and Europe, is presented by Warken et al. (2025).
References
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