@article{MTMT:34728890, title = {Palaeontological and taphonomical investigations of the exceptionally rich concentration of Miocene vertebrate coprolites from Pécs-Danitzpuszta (Hungary, Mecsek Mts.)}, url = {https://m2.mtmt.hu/api/publication/34728890}, author = {Román, Zsófia and Segesdi, Martin and Sebe, Krisztina and Földes, Tamás and Bakrač, Koraljka and Virág, Attila and Botfalvai, Gábor}, doi = {10.1080/08912963.2024.2324435}, journal-iso = {HIST BIOL}, journal = {HISTORICAL BIOLOGY}, unique-id = {34728890}, issn = {0891-2963}, abstract = {Thousands of coprolites have been collected from the Upper Miocene (Tortonian/Pannonian) sands of the Pécs-Danitzpuszta sand pit, one of the most important mixed Neogene vertebrate localities in Hungary. Although, the locality has been known for centuries, the coprolites have not been investigated in detail. We describe these fossils and explore their palaeoecological significance. Coprolites were examined with thin sections, X-ray powder diffraction and computed tomography. Their surface is mostly smooth, desiccation cracks were not observed. All coprolites mainly consist of apatite, indicating most probably a carnivorous diet. No evidence of herbivory has been found so far. The coprolites contain remains belonging to several groups: ostracod carapaces, bivalve shells, vertebrae from bony fishes, fish scales, as well as teeth. The CT scans show inhomogeneities in the matrix; however, in most cases they do not reliably indicate inclusions. The taphonomical features suggest rapid burial and most likely an aquatic origin. The spiral morphotype could be attributed to fishes with spiral intestinal valves. Teeth of reef-associated fish taxa indicate Badenian age for some specimens, though the coprolite assemblage might include older and younger specimens as well.}, keywords = {Lake Pannon; Paratethys; Miocene; VERTEBRATE COPROLITES; coprolite taphonomy}, year = {2024}, eissn = {1029-2381}, orcid-numbers = {Sebe, Krisztina/0000-0002-4647-2199; Virág, Attila/0000-0002-5530-0065; Botfalvai, Gábor/0000-0002-5479-9036} } @article{MTMT:33295571, title = {Multi-proxy dentition analyses reveal niche partitioning between sympatric herbivorous dinosaurs}, url = {https://m2.mtmt.hu/api/publication/33295571}, author = {Ősi, Attila and Barrett, Paul M. and Evans, Alistair R. and Nagy, András Lajos and Szenti, Imre and Kukovecz, Ákos and Magyar, János and Segesdi, Martin and Gere, Kinga and Jó, Viviána}, doi = {10.1038/s41598-022-24816-z}, journal-iso = {SCI REP}, journal = {SCIENTIFIC REPORTS}, volume = {12}, unique-id = {33295571}, issn = {2045-2322}, abstract = {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.}, year = {2022}, eissn = {2045-2322}, orcid-numbers = {Ősi, Attila/0000-0003-2967-997X; Kukovecz, Ákos/0000-0003-0716-9557} } @article{MTMT:33032252, title = {Trends of avian locomotion in water – an overview of swimming styles}, url = {https://m2.mtmt.hu/api/publication/33032252}, author = {Segesdi, Martin and Pecsics, Tibor}, doi = {10.2478/orhu-2022-0003}, journal-iso = {ORNIS HUNG}, journal = {ORNIS HUNGARICA}, volume = {30}, unique-id = {33032252}, issn = {1215-1610}, year = {2022}, eissn = {2061-9588}, pages = {30-46} } @{MTMT:32211406, title = {Az iharkúti késő-kréta gerinces leletanyag digitalizálása}, url = {https://m2.mtmt.hu/api/publication/32211406}, author = {Segesdi, Martin and Ősi, Attila}, booktitle = {24. Magyar Őslénytani Vándorgyűlés, Program, előadáskivonatok, kirándulásvezető}, unique-id = {32211406}, year = {2021}, pages = {27-28}, orcid-numbers = {Ősi, Attila/0000-0003-2967-997X} } @article{MTMT:32158035, title = {Újabb rejtélyes óriásmadár}, url = {https://m2.mtmt.hu/api/publication/32158035}, author = {Segesdi, Martin}, journal-iso = {ÉLET ÉS TUDOMÁNY}, journal = {ÉLET ÉS TUDOMÁNY}, volume = {2021}, unique-id = {32158035}, issn = {0013-6077}, year = {2021}, pages = {1091-1092} } @article{MTMT:31904372, title = {Sauropterygian remains from the Middle Triassic of Villány, Hungary—new information on the aquatic reptile fauna of Tisza Megaunit (Triassic southern Eurasian shelf region)}, url = {https://m2.mtmt.hu/api/publication/31904372}, author = {Segesdi, Martin and Ősi, Attila}, doi = {10.1007/s12549-020-00480-x}, journal-iso = {PALAEOBIODIV PALAEOENV}, journal = {PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS}, volume = {101}, unique-id = {31904372}, issn = {1867-1594}, year = {2021}, eissn = {1867-1608}, pages = {985-1011}, orcid-numbers = {Segesdi, Martin/0000-0003-4942-1810; Ősi, Attila/0000-0003-2967-997X} } @article{MTMT:31812169, title = {Pteroszauruszok röpte}, url = {https://m2.mtmt.hu/api/publication/31812169}, author = {Segesdi, Martin}, journal-iso = {ÉLET ÉS TUDOMÁNY}, journal = {ÉLET ÉS TUDOMÁNY}, volume = {2021}, unique-id = {31812169}, issn = {0013-6077}, year = {2021}, pages = {36-37} } @article{MTMT:31803498, title = {Triász tengerek vadászai. Változatos tengeri őshüllők Villányból}, url = {https://m2.mtmt.hu/api/publication/31803498}, author = {Segesdi, Martin}, journal-iso = {ÉLET ÉS TUDOMÁNY}, journal = {ÉLET ÉS TUDOMÁNY}, volume = {2021}, unique-id = {31803498}, issn = {0013-6077}, year = {2021}, pages = {6-8} } @article{MTMT:31803703, title = {Álfogú óriásmadár az Antarktiszról}, url = {https://m2.mtmt.hu/api/publication/31803703}, author = {Segesdi, Martin}, journal-iso = {ÉLET ÉS TUDOMÁNY}, journal = {ÉLET ÉS TUDOMÁNY}, volume = {2020}, unique-id = {31803703}, issn = {0013-6077}, year = {2020}, pages = {1475-1476} } @article{MTMT:31812337, title = {Tarajos talány. Egy rejtélyes őslény-híresség kutatásának története}, url = {https://m2.mtmt.hu/api/publication/31812337}, author = {Segesdi, Martin}, journal-iso = {ÉLET ÉS TUDOMÁNY}, journal = {ÉLET ÉS TUDOMÁNY}, volume = {2019}, unique-id = {31812337}, issn = {0013-6077}, year = {2019}, pages = {230-232} }