@article{MTMT:30422066, title = {The dirty dozen: taxonomical and taphonomical overview of a unique ankylosaurian (Dinosauria: Ornithischia) assemblage from the Santonian Iharkút locality, Hungary}, url = {https://m2.mtmt.hu/api/publication/30422066}, author = {Ősi, Attila and Botfalvai, Gábor and Albert, Gáspár and Hajdu, Zs}, doi = {10.1007/s12549-018-0362-z}, journal-iso = {PALAEOBIODIV PALAEOENV}, journal = {PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS}, volume = {99}, unique-id = {30422066}, issn = {1867-1594}, year = {2019}, eissn = {1867-1608}, pages = {195-240}, orcid-numbers = {Ősi, Attila/0000-0003-2967-997X; Botfalvai, Gábor/0000-0002-5479-9036; Albert, Gáspár/0000-0002-1723-8328} } @article{MTMT:3168501, title = {Taphonomical and palaeoecological investigation of the Late Cretaceous (Maastrichtian) Tuştea vertebrate assemblage (Romania; Haţeg Basin) - insights into a unique dinosaur nesting locality}, url = {https://m2.mtmt.hu/api/publication/3168501}, author = {Botfalvai, Gábor and Csiki-Sava, Z and Grigorescu, D and Vasile, Ş}, doi = {10.1016/j.palaeo.2016.12.003}, journal-iso = {PALAEOGEOGR PALAEOCL}, journal = {PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY}, volume = {468}, unique-id = {3168501}, issn = {0031-0182}, year = {2017}, eissn = {1872-616X}, pages = {228-262}, orcid-numbers = {Botfalvai, Gábor/0000-0002-5479-9036} } @article{MTMT:3238344, title = {Notes on the pelvic armor of European ankylosaurs (Dinosauria: Ornithischia)}, url = {https://m2.mtmt.hu/api/publication/3238344}, author = {Ősi, Attila and Pereda-Suberbiola, X}, doi = {10.1016/j.cretres.2017.03.007}, journal-iso = {CRETACEOUS RES}, journal = {CRETACEOUS RESEARCH}, volume = {75}, unique-id = {3238344}, issn = {0195-6671}, abstract = {The pelvic armor elements in the ankylosaurian material from the Upper Cretaceous of Iharkut, Hungary are described here. Among these, a new articulated hip region of a small bodied ankylosaur is referred here to cf. Struthiosaurus sp. It preserves, uniquely among Late Cretaceous European ankylosaurs, an in situ pelvic armor composed of among others four, keeled, oval to circular osteoderms lying centrally and arranged longitudinally above the synsacral neural spines. This is the first indication of this type of pelvic osteoderm arrangement in an ankylosaur, increasing our knowledge on this poorly known part of the ankylosaur skeleton. Some additional pelvic osteoderms are also described that help to reconstruct and distinguish the pelvic armor of the two Late Cretaceous European ankylosaurs Struthiosaurus and Hungarosaurus. Both taxa have some fused parts in the pelvic armor but most probably neither of them had a single, fused pelvic shield as that of the Early Cretaceous Polacanthus. Interwoven texture on the ventral surface of the osteoderms, observed in both European taxa and known in other ankylosaurs (e.g. Polacanthus, Nodosaurus), is suggested here to be a characteristic feature of the non-keeled, fused pelvic armor elements of Ankylosauria. (C) 2017 Elsevier Ltd. All rights reserved.}, keywords = {Hungary; MORPHOLOGY; NORTH-AMERICA; Bakony Mountains; Late cretaceous; redescription; HUNGAROSAURUS-TORMAI; Hungarosaurus; STRUTHIOSAURUS; Skeletal reconstruction; Ankylosauria; Armor; NORTHWESTERN HUNGARY; OSTEODERMS; DERMAL ARMOR}, year = {2017}, eissn = {1095-998X}, pages = {11-22}, orcid-numbers = {Ősi, Attila/0000-0003-2967-997X} } @article{MTMT:3162872, title = {Medullary bone in fossils: Function, evolution and significance in growth curve reconstructions of extinct vertebrates}, url = {https://m2.mtmt.hu/api/publication/3162872}, author = {Prondvai, Edina}, doi = {10.1111/jeb.13019}, journal-iso = {J EVOLUTION BIOL}, journal = {JOURNAL OF EVOLUTIONARY BIOLOGY}, volume = {30}, unique-id = {3162872}, issn = {1010-061X}, abstract = {Medullary bone (MB) is a special endosteal tissue forming in the bones of female birds during egg laying to serve as a labile calcium reservoir for building the hard eggshell. Therefore, the presence of MB reported in multiple nonavian dinosaurs is currently considered as evidence that those specimens were sexually mature females in their reproductive period. This interpretation has led to further inferences on species-specific growth strategies and related life-history aspects of these extinct vertebrates. However, a few studies questioned the reproductive significance of fossil MB by either regarding the tissue pathological or attributing alternative functions to it. This study reviews the general inferences on extinct vertebrates and discusses the primary role, distribution, regulation and adaptive significance of avian MB to point out important but largely overlooked uncertainties and inconsistencies in this matter. Emerging discordancy is demonstrated when the presence of MB vs. trade-off between growth and reproduction is used for interpreting dinosaurian growth curves. Synthesis of these data suggests that fossil MB was related to high calcium turnover rates but not exclusively to egg laying. Furthermore, revised application of Allosaurus growth data by modelling individual-based growth curves implies a much higher intraspecific variability in growth strategies, including timing of sexual maturation, than usually acknowledged. New hypotheses raised here to resolve these incongruences also propose new directions of research on the origin and functional evolution of this curious bone tissue. © 2016 European Society For Evolutionary Biology.}, keywords = {BIRDS; Eggshell; growth curve; Fossils; Reproductive maturity; Nonavian dinosaurs; Medullary bone}, year = {2017}, eissn = {1420-9101}, pages = {440-460} } @article{MTMT:2986714, title = {Facies architecture and palaeoenvironmental implications of the upper Cretaceous (Santonian) Csehbánya formation at the Iharkút vertebrate locality (Bakony Mountains, Northwestern Hungary)}, url = {https://m2.mtmt.hu/api/publication/2986714}, author = {Botfalvai, Gábor and Haas, János and Bodor, Emese Réka and Mindszenty, Andrea and Ősi, Attila}, doi = {10.1016/j.palaeo.2015.10.018}, journal-iso = {PALAEOGEOGR PALAEOCL}, journal = {PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY}, volume = {441}, unique-id = {2986714}, issn = {0031-0182}, year = {2016}, eissn = {1872-616X}, pages = {659-678}, orcid-numbers = {Botfalvai, Gábor/0000-0002-5479-9036; Haas, János/0000-0003-0929-8889; Bodor, Emese Réka/0000-0003-3894-2506; Mindszenty, Andrea/0000-0001-8927-3053; Ősi, Attila/0000-0003-2967-997X} } @CONFERENCE{MTMT:2918690, title = {Facies architecture and palaeoenvironment implications of the Upper Cretaceous (Santonian) Csehbánya Formation at the Iharkút vertebrate locality (Bakony Mts., Northwestern Hungary)}, url = {https://m2.mtmt.hu/api/publication/2918690}, author = {Botfalvai, Gábor and Haas, J and Mindszenty, A and Bodor, Emese Réka and Ősi, Attila}, booktitle = {31st IAS Meeting of Sedimentology Abstract Volume}, unique-id = {2918690}, year = {2015}, pages = {82}, orcid-numbers = {Botfalvai, Gábor/0000-0002-5479-9036; Bodor, Emese Réka/0000-0003-3894-2506; Ősi, Attila/0000-0003-2967-997X} } @article{MTMT:2782588, title = {Taphonomic and paleoecologic investigations of the Late Cretaceous (Santonian) Iharkút vertebrate assemblage (Bakony Mts, Northwestern Hungary)}, url = {https://m2.mtmt.hu/api/publication/2782588}, author = {Botfalvai, Gábor and Ősi, Attila and Mindszenty, Andrea}, doi = {10.1016/j.palaeo.2014.09.032}, journal-iso = {PALAEOGEOGR PALAEOCL}, journal = {PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY}, volume = {417}, unique-id = {2782588}, issn = {0031-0182}, year = {2015}, eissn = {1872-616X}, pages = {379-405}, orcid-numbers = {Botfalvai, Gábor/0000-0002-5479-9036; Ősi, Attila/0000-0003-2967-997X; Mindszenty, Andrea/0000-0001-8927-3053} } @article{MTMT:2588197, title = {Partial skull and endocranial cast of the ankylosaurian dinosaur Hungarosaurus from the Late Cretaceous of Hungary: implications for locomotion}, url = {https://m2.mtmt.hu/api/publication/2588197}, author = {Ősi, Attila and Suberbiola, XP and Földes, Tamás}, doi = {10.26879/405}, journal-iso = {PALAEONTOL ELECTRON}, journal = {PALAEONTOLOGIA ELECTRONICA}, volume = {17}, unique-id = {2588197}, issn = {1935-3952}, abstract = {A partial skull of ankylosaur from the Upper Cretaceous (Santonian) Csehbanya Formation in Iharkut and the endocranial cast taken from it are described. The morphology of the exoccipital, the elongated 'neck' region of the basioccipital, the shape of the occipital condyle, and the different flexure of the medulla relative to the forebrain unambiguously differentiate this specimen from the basicranium of Struthiosaurus, so it is assigned to Hungarosaurus sp. Whereas the endocranial cast reflects a brain generally similar to those of other ankylosaurs, the dorsally hypertrophied cerebellum (also present is Struthiosaurus transylvanicus) is quite unusual within the group suggesting a more sophisticated cerebral coordination of posture and movement, and perhaps a more cursorial locomotary habit than predicted for other ankylosaurs.}, keywords = {RECONSTRUCTION; Skull; Santonian; ORNITHISCHIA; Hungarosaurus; STRUTHIOSAURUS; ARCHOSAURIA; Iharkut; Ankylosauria; TORMAI; endocranial cast}, year = {2014}, eissn = {1094-8074}, orcid-numbers = {Ősi, Attila/0000-0003-2967-997X} } @article{MTMT:2359731, title = {Sympatry of two ankylosaurs (Hungarosaurus and cf. Struthiosaurus) in the Santonian of Hungary}, url = {https://m2.mtmt.hu/api/publication/2359731}, author = {Ősi, Attila and Prondvai, Edina}, doi = {10.1016/j.cretres.2013.03.006}, journal-iso = {CRETACEOUS RES}, journal = {CRETACEOUS RESEARCH}, volume = {44}, unique-id = {2359731}, issn = {0195-6671}, abstract = {Abstract A complete and well-preserved right ankylosaurian humerus from the Upper Cretaceous (Santonian) Csehbánya Formation of Iharkút, western Hungary is described here. Based on its osteological features and 21.5 cm adult length, the new specimen is markedly different from the slender humerus of Hungarosaurus, the previously known ankylosaur from the locality, and more similar to that of Struthiosaurus. Thus, the new Hungarian specimen is tentatively assigned here to cf. Struthiosaurus thereby dating back the first occurrence of this genus to the Santonian. The new fossil demonstrates the sympatric co-existence of two different nodosaurid ankylosaurs (a smaller, robust form with 2–2.5 m total body length and a larger, cursorial form with 4–4.5 m body length) in the Iharkút fauna. This also suggests that the pattern of the European ankylosaur diversity was more complex than previously thought.}, keywords = {Hungary; Late cretaceous; Co-existence; cf. Struthiosaurus; Hungarosaurus}, year = {2013}, eissn = {1095-998X}, pages = {58-63}, orcid-numbers = {Ősi, Attila/0000-0003-2967-997X} } @article{MTMT:2503095, title = {Palynomorphs of the Normapolles group and related plant mesofossils from the Iharkút vertebrate site, Bakony Mountains (Hungary)}, url = {https://m2.mtmt.hu/api/publication/2503095}, author = {Bodor, Emese Réka and Baranyi, Viktória}, doi = {10.1556/CEuGeol.55.2012.3.3}, journal-iso = {CENT EUR GEOL}, journal = {CENTRAL EUROPEAN GEOLOGY}, volume = {55}, unique-id = {2503095}, issn = {1788-2281}, abstract = {Palynological and paleobotanical investigation of bonebeds and other strata of the Csehbánya Formation from the vertebrate locality at Iharkút (Bakony Mts, Hungary) reveals well-preserved Santonian palynological assemblages dominated by the Normapolles group, with a minor component consisting of other angiosperm pollen, some gymnosperm pollen, and spores. Eleven species of Normapolles-type pollen grains belonging to seven genera and fruit remains of a new taxon, Sphaeracostata barbackae gen. et sp. nov., are described. The new species is very abundant in the material, represented by ca. 1000 specimens. The genus Caryanthus Friis and an unnamed form previously reported from Hat¸eg by Lindfors et al. (2010) are also present. Plants producing Normapolles-type pollen grains diversified during the Late Cretaceous, with a bloom in the Santonian. The palynostratigraphy of the Upper Cretaceous terrestrial sediments in the studied region is based on Normapolles-related species. The studied assemblage is assigned to the Oculopollis zaklinskaiae-Tetracolporopollenites (Brecolpites) globosus Zone (or Zone C) indicating a late Santonian age. Comparison of the Iharkút palynoflora with other known Upper Cretaceous palynofloras of Central Europe shows diachronous occurrence of Normapolles taxa at different geographic localities and warrants further investigation. The ecological requirements of the amphibian fauna reflect azonal conditions controlled by the availability of water, which is in agreement with the inferred ecological conditions based on the paleobotanical investigations. The fauna is of entirely non-marine character, further supported by isotope studies, in line with our data showing that the palynological samples contain no marine forms.}, year = {2012}, eissn = {1789-3348}, pages = {259-292}, orcid-numbers = {Bodor, Emese Réka/0000-0003-3894-2506; Baranyi, Viktória/0000-0002-1194-9903} } @inbook{MTMT:1464155, title = {The Late Cretaceous continental vertebrate fauna from Iharkút, western Hungary: a review}, url = {https://m2.mtmt.hu/api/publication/1464155}, author = {Ősi, Attila and Makádi, László and Rabi, Márton and Szentesi, Zoltán and Botfalvai, Gábor and Gulyás, P}, booktitle = {Bernissart Dinosaurs and Early Cretaceous Terrestrial Ecosystems}, unique-id = {1464155}, year = {2012}, pages = {533-570}, orcid-numbers = {Ősi, Attila/0000-0003-2967-997X; Szentesi, Zoltán/0000-0002-7019-5478; Botfalvai, Gábor/0000-0002-5479-9036} } @article{MTMT:151959, title = {New remains of Hungarosaurus tormai (Ankylosauria, Dinosauria) from the Upper Cretaceous of Hungary: skeletal reconstruction and body mass estimation}, url = {https://m2.mtmt.hu/api/publication/151959}, author = {Ősi, Attila and Makádi, László}, doi = {10.1007/s12542-009-0017-5}, journal-iso = {PALAEONTOL Z}, journal = {PALAEONTOLOGISCHE ZEITSCHRIFT}, volume = {83}, unique-id = {151959}, issn = {0031-0220}, year = {2009}, eissn = {1867-6812}, pages = {227-245}, orcid-numbers = {Ősi, Attila/0000-0003-2967-997X} }