TY - JOUR AU - Augustin, FJ. AU - Ősi, Attila AU - Csiki-Sava, Z TI - The Rhabdodontidae (Dinosauria, Ornithischia), an enigmatic dinosaur group endemic to the Late Cretaceous European Archipelago JF - FOSSIL RECORD: AN INTERNATIONAL JOURNAL OF GEOSCIENCE J2 - FOSS REC VL - 26 PY - 2023 IS - 2 SP - 171 EP - 189 PG - 19 SN - 2193-0066 DO - 10.3897/fr.26.108967 UR - https://m2.mtmt.hu/api/publication/34128741 ID - 34128741 N1 - Department of Geosciences, University of Tübingen, Hölderlinstraße 12, Tübingen, 72074, Germany Department of Palaeontology, Institute of Geography and Earth Sciences, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary Hungarian Natural History Museum, Baross u. 13, Budapest, 1088, Hungary Faculty of Geology and Geophysics, University of Bucharest, 1 Nicolae Bălcescu Avenue, Bucharest, 010041, Romania Export Date: 10 November 2023 Correspondence Address: Augustin, F.J.; Department of Geosciences, Hölderlinstraße 12, Germany; email: felix.augustin@uni-tuebingen.de AB - The Rhabdodontidae was one of the most important dinosaur groups inhabiting the Late Cretaceous European Archipelago. Currently, the clade comprises nine species within six genera, which have been found in southern France, northern Spain, eastern Austria, western Hungary and western Romania, ranging from the Santonian to the late Maastrichtian. Phylogenetic analyses consistently place the Rhabdodontidae at the very base of the iguanodontian radiation, whereas the in-group relationships of rhabdodontids are relatively poorly understood; nevertheless, the clade seems to have had a rather complicated biogeographical history. Generally, rhabdodontids were small- to medium-sized, probably habitually bipedal herbivores, characterised by a rather stocky build and a comparatively large, triangular skull. Several lines of evidence suggest that they were presumably gregarious animals, as well as selective browsers that fed on fibrous plants and occupied different ecological niches than sympatric herbivorous dinosaur clades. Moreover, the sympatry of at least two rhabdodontid taxa was rather common and can be explained, at least in some instances, by niche partitioning. While rhabdodontids disappeared prior to the K/Pg extinction event in Western Europe, they survived close to the end of the Cretaceous in Eastern Europe, where they were amongst the last non-avian dinosaurs still present before the end of the Cretaceous. In this paper, we provide an overview of the rhabdodontid taxonomic history, diversity, phylogenetic relationships and palaeobiogeographic history, as well as palaeoecology and extinction. In addition, we also highlight still open questions on each of these topics and suggest potential future research directions. LA - English DB - MTMT ER - TY - CONF AU - Csiki-Sava, Z. AU - Budai, S. AU - Magyar, János AU - Botfalvai, Gábor TI - Another Fountain of (Palaeontological) Wealth – preliminary report on a new fossiliferous locality from Fântânele, Vălioara (Hațeg Basin) T2 - Abstract Book, Fourteenth Romanian Symposium on Palaeontology PB - Bucharest University Press C1 - Bucharest PY - 2023 SP - 41 EP - 42 PG - 2 UR - https://m2.mtmt.hu/api/publication/34145417 ID - 34145417 LA - English DB - MTMT ER - TY - JOUR AU - Ősi, Attila AU - Barrett, PM. AU - Evans, AR. AU - Nagy, András Lajos AU - Szenti, Imre AU - Kukovecz, Ákos AU - Magyar, János AU - Segesdi, Martin AU - Gere, Kinga AU - Jó, Viviána TI - Multi-proxy dentition analyses reveal niche partitioning between sympatric herbivorous dinosaurs JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 12 PY - 2022 IS - 1 PG - 16 SN - 2045-2322 DO - 10.1038/s41598-022-24816-z UR - https://m2.mtmt.hu/api/publication/33295571 ID - 33295571 N1 - Department of Palaeontology, Institute of Geography and Earth Sciences, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary Hungarian Natural History Museum, Baross u. 13, Budapest, 1088, Hungary Natural History Museum, London, SW7 5BD, United Kingdom Monash University, Wellington Rd, Clayton, VIC 3800, Australia Department of Propulsion Technology HU, Széchenyi István University, Egyetem tér 1, Győr, 9026, Hungary Department of Applied and Environmental Chemistry, Interdisciplinary Centre of Excellence, University of Szeged, Rerrich Béla tér 1, Szeged, 6720, Hungary Department of Physical Geography, Institute of Geography and Earth Sciences, ELTE Eötvös Loránd University, Pázmány Péter Sétány 1/C, Budapest, 1117, Hungary Export Date: 13 December 2022 Correspondence Address: Ősi, A.; Department of Palaeontology, Pázmány Péter Sétány 1/C, Hungary; email: osi.attila@ttk.elte.hu AB - Dentitions of the sympatric herbivorous dinosaurs Hungarosaurus (Ankylosauria, Nodosauridae) and Mochlodon (Ornithopoda, Rhabdodontidae) (Santonian, Hungary) were analysed to investigate their dietary ecology, using several complementary methods—orientation patch count, tooth replacement rate, macrowear, tooth wear rate, traditional microwear, and dental microwear texture analysis (DMTA). Tooth formation time is similar in Hungarosaurus and Mochlodon , and traditional and DMTA microwear features suggest low-browsing habits for both taxa, consistent with their inferred stances and body sizes. However, Mochlodon possesses a novel adaptation for increasing dental durability: the dentine on the working side of the crown is double the thickness of that on the balancing side. Moreover, crown morphology, enamel thickness, macrowear orientation, and wear rate differ greatly between the two taxa. Consequently, these sympatric herbivores probably exploited plants of different toughness, implying dietary selectivity and niche partitioning. Hungarosaurus is inferred to have eaten softer vegetation, whereas Mochlodon likely fed on tougher material. Compared to the much heavier, quadrupedal Hungarosaurus , the bipedal Mochlodon wore down more than twice as much of its crown volume during the functional life of the tooth. This heavy tooth wear might correlate with more intensive food processing and, in turn, could reflect differences in the metabolic requirements of these animals. LA - English DB - MTMT ER - TY - JOUR AU - Botfalvai, Gábor AU - Csiki-Sava, Z AU - Kocsis, L AU - Albert, Gáspár AU - Magyar, János AU - Bodor, Emese Réka AU - Ţabără, D AU - Ulyanov, A AU - Makádi, László TI - ‘X’ marks the spot! Sedimentological, geochemical and palaeontological investigations of Upper Cretaceous (Maastrichtian) vertebrate fossil localities from the Vălioara valley (Densuş-Ciula Formation, Hațeg Basin, Romania) JF - CRETACEOUS RESEARCH J2 - CRETACEOUS RES VL - 123 PY - 2021 SN - 0195-6671 DO - 10.1016/j.cretres.2021.104781 UR - https://m2.mtmt.hu/api/publication/31955461 ID - 31955461 N1 - Funding Agency and Grant Number: Hungarian Natural History Museum; Department of Palaeontology at the Eotvos Lorand University; Hungarian National Research, Development and Innovation Office [NKFIH OTKA PD 131557]; New National Excellence Program of the Ministry for Innovation and Technology sourced from the National Research, Development and Innovation Fund [UNKP-20-5]; Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences; Fundamental and Frontier Research Program of the Romanian Ministry of Education and Research, CNCSUEFISCDI, within PNCDI III [PN-III-P4-ID-PCE-2020-2570]; NRDI Thematic Excellence Program [TKP2020-NKA-06]; Hungarian Scientific Research Fund (NKFIH) [K 116665, FK 130190, PD 130627]; University of Bucharest; Department of Geology at the Eotvos Lorand University; Mining and Geological Survey of Hungary [FKFO-11]; Hungarian Dinosaur Foundation Funding text: Our work would not have started without the initial advice of the late Pal Pelikany concerning Kadic's map, and we are grateful to Olga Piros and Timea Szlepak for granting access to it. We thank Attila Osi and Viktor Karadi (Eotvos Lorand University, Department of Palaeontology) for their help in the fieldwork and with scientific discussions. The research was supported by the Hungarian Natural History Museum, the Department of Palaeontology at the Eotvos Lorand University, the Hungarian National Research, Development and Innovation Office (project NKFIH OTKA PD 131557), the UNKP-20-5 New National Excellence Program of the Ministry for Innovation and Technology sourced from the National Research, Development and Innovation Fund, and the Janos Bolyai Research Scholarship of the Hungarian Academy of Sciences to GB; a grant through the Fundamental and Frontier Research Program of the Romanian Ministry of Education and Research, CNCS- UEFISCDI, project number PN-III-P4-ID-PCE2020-2570, within PNCDI III for ZCs-S and D.; as well as the NRDI Thematic Excellence Program TKP2020-NKA-06 (National Challenges Subprogram) funding scheme to GA. Furthermore, our work was supported by the Hungarian Scientific Research Fund (NKFIH K 116665; FK 130190; PD 130627), the University of Bucharest, the Department of Geology at the Eotvos Lorand University, the Mining and Geological Survey of Hungary (project FKFO-11), and the Hungarian Dinosaur Foundation. The authors would like to thank Xabier Pereda-Suberbiola and an anonymous reviewer, as well as the handling Editor (Eduardo Koutsoukos), for their insightful and constructive comments on a previous version of this manuscript which helped us to improve it. LA - English DB - MTMT ER - TY - JOUR AU - Botfalvai, Gábor AU - Csiki-Sava, Z AU - Grigorescu, D AU - Vasile, Ş TI - Taphonomical and palaeoecological investigation of the Late Cretaceous (Maastrichtian) Tuştea vertebrate assemblage (Romania; Haţeg Basin) - insights into a unique dinosaur nesting locality JF - PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY J2 - PALAEOGEOGR PALAEOCL VL - 468 PY - 2017 SP - 228 EP - 262 PG - 35 SN - 0031-0182 DO - 10.1016/j.palaeo.2016.12.003 UR - https://m2.mtmt.hu/api/publication/3168501 ID - 3168501 N1 - Funding Agency and Grant Number: National Geographic Society [3510-87]; National Science Foundation [INT-8619987]; Romanian Academy of Sciences [GAR 165/1997, 39/2001-2002]; National Research Council of Romania (CNCSIS - UEFISCDI) [1163 CNCSIS-A/2004, 1677 CNCSIS-A/2007, 1930 IDEI PCE/2009]; university of Bucharest; university of Petrosani; Hidroconstructia SA - Raul Mare; Mayoralty of General Berthelot; MTA Lendalet Program [95102]; Campus Hungary Fellowship (Balassi Institute) [CHP/121-10/2014]; National Research, Development and Innovation Office [K116665] Funding text: First and foremost, we want to thank the members of the crews who worked at Tu tea between 1988 and 2011 (far too many to list them here) for their assistance in the fieldwork, as well as for their help in preparing the large number of remains recovered from this quarry. Along the years, excavations at the site were supported by grants from the National Geographic Society (3510-87) and National Science Foundation (INT-8619987; both to David Weishampel and DG), the Romanian Academy of Sciences (grants GAR 165/1997 and 39/2001-2002 to DG), the National Research Council of Romania (CNCSIS - UEFISCDI; grants 1163 CNCSIS-A/2004 and 1677 CNCSIS-A/2007 to DG, and 1930 IDEI PCE/2009 to ZCS-S), as well as by the universities of Bucharest and Petrosani, the Hidroconstructia SA - Raul Mare, and the Mayoralty of General Berthelot. Permits to work at the site were issued by the Administration of the Hateg County Dinosaurs Geopark. This project was also supported by MTA Lendalet Program (Grant no. 95102 to Attila Osi), the Campus Hungary Fellowship (Balassi Institute: CHP/121-10/2014 to GB) and the National Research, Development and Innovation Office (Grant no. K116665 to Attila Osi). GB thanks the staff of the Department of Applied and Physical Geology and the Department of Paleontology, ELTE, Budapest, for their support and help provided through the years, particularly Edina Prondvai and Attila Osi (MTA-ELTE Dinosaur Research Group, Budapest), and Andrea Mindszenty (Department of Applied and Physical Geology, Budapest). This is MTA-MTM-ELTE Paleo contribution no. 237. Comments by the reviewer (Spencer G. Lucas) have helped to improve a previous version of the manuscript. LA - English DB - MTMT ER - TY - JOUR AU - Virág, Attila AU - Ősi, Attila TI - Morphometry, microstructure and wear pattern of neornithischian dinosaur teeth from the Upper Cretaceous Iharkút locality (Hungary) JF - ANATOMICAL RECORD J2 - ANAT REC VL - 300 PY - 2017 IS - 8 SP - 1439 EP - 1463 PG - 25 SN - 1932-8486 DO - 10.1002/ar.23592 UR - https://m2.mtmt.hu/api/publication/3170329 ID - 3170329 N1 - MTA-ELTE Lendület Dinosaur Research Group, Pázmány Péter sétány 1/c, Budapest, 1117, Hungary MTA-MTM-ELTE Research Group for Paleontology, Pázmány Péter sétány 1/c, Budapest, 1117, Hungary Department of Paleontology, Eötvös Loránd University, Pázmány Péter sétány 1/c, Budapest, 1117, Hungary Cited By :9 Export Date: 3 January 2023 Correspondence Address: Virág, A.; MTA-ELTE Lendület Dinosaur Research Group, Pázmány Péter sétány 1/c, Hungary; email: viragattila.pal@gmail.com LA - English DB - MTMT ER - TY - JOUR AU - Csiki-Sava, Z AU - Vremir, M AU - Vasile, S AU - Brusatte, SL AU - Dyke, Gareth AU - Naish, D AU - Norell, MA AU - Totoianu, R TI - The East Side Story - Transylvanian latest Cretaceous continental vertebrate record and its implications for understanding the Cretaceous–Paleogene Boundary events. JF - CRETACEOUS RESEARCH J2 - CRETACEOUS RES VL - 57 PY - 2016 SP - 662 EP - 698 PG - 37 SN - 0195-6671 DO - 10.1016/j.cretres.2015.09.003 UR - https://m2.mtmt.hu/api/publication/2920186 ID - 2920186 N1 - WoS:hiba:000365055700048 2019-03-09 12:38 cím nem egyezik AB - The lastest Cretaceous continental vertebrate faunas of the wider Transylvanian area figured prominently in discussions concerning the Cretaceous-Paleogene Boundary (K-PG) events when they were first described by Nopcsa between 1897 and 1929, because they were assumed to be late Maasrichtian in age. Subsequently their age was reconsidered as early Maasrichtian, and were thus regarded of lesser importance in understanding the K-PG boundary events in Europe and worldwide. Moreover, Transylvanian continental vertebrate assemblages (the so-called 'Hateg Island' faunas )were often lumped together as a temporally restriced assemblage with a homogenous taxonomic composition. Recent fossil discoveries and more precise dating techniques have considerably expanded knowledge of the Transylvanian vertebrate assemblages, their ages, and their evolution. A Synthesis of the avilable stratigraphic data allows development of the first comprehensive chronostratigraphic framework of the latest Cretaceous Transylvanian vertebrates. According to these new data, expansion of continental habitats and emergence of their vertebrate faunas started locally during the latter part of the late Campanian, and these faunas continued up to the second half of the Maastrichtian. During this time, long-term faunal stasis appears to have characterized the Transylvanian vertebrate assemblages, which is different from the striking turnovers recorded in western Europe during the same time interval. This suggests that there was no single 'Europe-wide' pattern of latest Cretaceous continental vertebrate evolution. Together, the available data shows that dinosaurs and other vertebrates were relatively abundant and diverse until at least ca. 1 million years before the K-Pg boundary, and is therefore consistent with the hypothesis of a sudden extinction, altough this must be tested with future discoveries and better age constraints and correlations. LA - English DB - MTMT ER - TY - JOUR AU - Ősi, Attila AU - Prondvai, Edina AU - Butler, R AU - Weishampel, DB TI - Phylogeny, Histology and Inferred Body Size Evolution in a New Rhabdodontid Dinosaur from the Late Cretaceous of Hungary JF - PLOS ONE J2 - PLOS ONE VL - 7 PY - 2012 IS - 9 PG - 25 SN - 1932-6203 DO - 10.1371/journal.pone.0044318 UR - https://m2.mtmt.hu/api/publication/2069911 ID - 2069911 N1 - Hungarian Academy of Sciences-Eötvös Loránd University, Lendület Dinosaur Research Group, Budapest, Hungary GeoBio-Center, Ludwig-Maximilians-Universität München, Munich, Germany Center for Functional Anatomy and Evolution, Johns Hopkins University, Baltimore, MD, United States Cited By :64 Export Date: 24 January 2023 Correspondence Address: Osi, A.; Hungarian Academy of Sciences-Eötvös Loránd University, , Budapest, Hungary; email: hungaros@gmail.com AB - Background: Rhabdodontid ornithopod dinosaurs are characteristic elements of Late Cretaceous European vertebrate faunas and were previously collected from lower Campanian to Maastrichtian continental deposits. Phylogenetic analyses have placed rhabdodontids among basal ornithopods as the sister taxon to the clade consisting of Tenontosaurus, Dryosaurus, Camptosaurus, and Iguanodon. Recent studies considered Zalmoxes, the best known representative of the clade, to be significantly smaller than closely related ornithopods such as Tenontosaurus, Camptosaurus, or Rhabdodon, and concluded that it was probably an island dwarf that inhabited the Maastrichtian Hat¸eg Island. Methodology/Principal Findings: Rhabdodontid remains from the Santonian of western Hungary provide evidence for a new, small-bodied form, which we assign to Mochlodon vorosi n. sp. The new species is most similar to the early Campanian M. suessi from Austria, and the close affinities of the two species is further supported by the results of a global phylogenetic analysis of ornithischian dinosaurs. Bone histological studies of representatives of all rhabdodontids indicate a similar adult body length of 1.6–1.8 m in the Hungarian and Austrian species, 2.4–2.5 m in the subadults of both Zalmoxes robustus and Z. shqiperorum and a much larger, 5–6 m adult body length in Rhabdodon. Phylogenetic mapping of femoral lengths onto the results of the phylogenetic analysis suggests a femoral length of around 340 mm as the ancestral state for Rhabdodontidae, close to the adult femoral lengths known for Zalmoxes (320–333 mm). Conclusions/Significance: Our analysis of body size evolution does not support the hypothesis of autapomorhic nanism for Zalmoxes. However, Rhabdodon is reconstructed as having undergone autapomorphic giantism and the reconstructed small femoral length (245 mm) of Mochlodon is consistent with a reduction in size relative to the ancestral rhabdodontid condition. Our results imply a pre-Santonian divergence between western and eastern rhabdodontid lineages within the western Tethyan archipelago. LA - English DB - MTMT ER -