TY - JOUR AU - Román, Zsófia AU - Segesdi, Martin AU - Sebe, Krisztina AU - Földes, Tamás AU - Bakrač, Koraljka AU - Virág, Attila AU - Botfalvai, Gábor TI - Palaeontological and taphonomical investigations of the exceptionally rich concentration of Miocene vertebrate coprolites from Pécs-Danitzpuszta (Hungary, Mecsek Mts.) JF - HISTORICAL BIOLOGY J2 - HIST BIOL PY - 2024 PG - 16 SN - 0891-2963 DO - 10.1080/08912963.2024.2324435 UR - https://m2.mtmt.hu/api/publication/34728890 ID - 34728890 N1 - Institute of Geography and Earth Sciences, Department of Paleontology, Eötvös Loránd University (ELTE), Budapest, Hungary Department of Zoology, Hungarian Natural History Museum, Budapest, Hungary Department of Paleontology and Geology, Hungarian Natural History Museum, Budapest, Hungary HUN-REN-MTM-ELTE Research Group for Paleontology, Budapest, Hungary TOMOGEO Kft, Szolnok, Hungary Department of Geology, Croatian Geological Survey, Zagreb, Croatia Institute of Geography and Earth Sciences, Department of Petrology and Geochemistry, Eötvös Loránd University (ELTE), Budapest, Hungary Institute of Earth Sciences, Department of Mineralogy & Geology, University of Debrecen, Debrecen, Hungary Export Date: 18 March 2024 Correspondence Address: Román, Z.; Institute of Geography and Earth Sciences, Pázmány Péter sétány 1/c, Hungary; email: zsofia.m.roman@gmail.com AB - 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. LA - English DB - MTMT ER - TY - JOUR AU - Ősi, Attila AU - Barrett, Paul M. AU - Evans, Alistair R. 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 - Segesdi, Martin AU - Pecsics, Tibor TI - Trends of avian locomotion in water – an overview of swimming styles JF - ORNIS HUNGARICA J2 - ORNIS HUNG VL - 30 PY - 2022 IS - 1 SP - 30 EP - 46 PG - 17 SN - 1215-1610 DO - 10.2478/orhu-2022-0003 UR - https://m2.mtmt.hu/api/publication/33032252 ID - 33032252 N1 - Eötvös Loránd University, Institute of Geography and Earth Sciences, Department of Paleontology, Pázmány Péter sétány 1/c, Budapest, 1117, Hungary Department of Paleontology and Geology, Hungarian Natural History Museum, Budapest, 1431, Hungary Behavioural Ecology Group, Department of Systematic Zoology and Ecology, Eötvös Loránd University, Budapest, 1117, Hungary Export Date: 24 November 2023 Correspondence Address: Segesdi, M.; Eötvös Loránd University, Pázmány Péter sétány 1/c, Hungary; email: martinsegesdi@gmail.com LA - English DB - MTMT ER - TY - CHAP AU - Segesdi, Martin AU - Ősi, Attila ED - Bosnakoff, Mariann ED - Főzy, István ED - Szives, Ottilia TI - Az iharkúti késő-kréta gerinces leletanyag digitalizálása T2 - 24. Magyar Őslénytani Vándorgyűlés, Program, előadáskivonatok, kirándulásvezető PB - Magyarhoni Földtani Társulat CY - Budapest SN - 9789638221841 PY - 2021 SP - 27 PG - 1 UR - https://m2.mtmt.hu/api/publication/32211406 ID - 32211406 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Segesdi, Martin TI - Újabb rejtélyes óriásmadár JF - ÉLET ÉS TUDOMÁNY J2 - ÉLET ÉS TUDOMÁNY VL - 2021 PY - 2021 IS - 35 SP - 1091 EP - 1092 PG - 2 SN - 0013-6077 UR - https://m2.mtmt.hu/api/publication/32158035 ID - 32158035 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Segesdi, Martin AU - Ősi, Attila TI - Sauropterygian remains from the Middle Triassic of Villány, Hungary—new information on the aquatic reptile fauna of Tisza Megaunit (Triassic southern Eurasian shelf region) JF - PALAEOBIODIVERSITY AND PALAEOENVIRONMENTS J2 - PALAEOBIODIV PALAEOENV VL - 101 PY - 2021 IS - 4 SP - 985 EP - 1011 PG - 27 SN - 1867-1594 DO - 10.1007/s12549-020-00480-x UR - https://m2.mtmt.hu/api/publication/31904372 ID - 31904372 N1 - Funding Agency and Grant Number: Eotvos Lorand University; Human Capacities Grant Management Office (EMET) of the Hungarian Ministry of Human Capacities [NTP-NFTO-16-0257]; National Research, Development and Innovation Office-NKFIH [OTKA K 116665, K 131597]; ELTE Dinosaur Research Group Funding text: Open Access funding provided by Eotvos Lorand University. Research was funded by the Human Capacities Grant Management Office (EMET) of the Hungarian Ministry of Human Capacities (M. Segesdi-NTP-NFTO-16-0257; National Talent Support Program Scholarship), the National Research, Development and Innovation Office-NKFIH (A. Osi-OTKA K 116665, K 131597) and the ELTE Dinosaur Research Group. LA - English DB - MTMT ER - TY - JOUR AU - Segesdi, Martin TI - Pteroszauruszok röpte JF - ÉLET ÉS TUDOMÁNY J2 - ÉLET ÉS TUDOMÁNY VL - 2021 PY - 2021 IS - 2 SP - 36 EP - 37 PG - 2 SN - 0013-6077 UR - https://m2.mtmt.hu/api/publication/31812169 ID - 31812169 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Segesdi, Martin TI - Triász tengerek vadászai. Változatos tengeri őshüllők Villányból TS - Változatos tengeri őshüllők Villányból JF - ÉLET ÉS TUDOMÁNY J2 - ÉLET ÉS TUDOMÁNY VL - 2021 PY - 2021 IS - 1 SP - 6 EP - 8 PG - 3 SN - 0013-6077 UR - https://m2.mtmt.hu/api/publication/31803498 ID - 31803498 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Segesdi, Martin TI - Álfogú óriásmadár az Antarktiszról JF - ÉLET ÉS TUDOMÁNY J2 - ÉLET ÉS TUDOMÁNY VL - 2020 PY - 2020 IS - 47 SP - 1475 EP - 1476 PG - 2 SN - 0013-6077 UR - https://m2.mtmt.hu/api/publication/31803703 ID - 31803703 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Segesdi, Martin TI - Tarajos talány. Egy rejtélyes őslény-híresség kutatásának története TS - Egy rejtélyes őslény-híresség kutatásának története JF - ÉLET ÉS TUDOMÁNY J2 - ÉLET ÉS TUDOMÁNY VL - 2019 PY - 2019 IS - 8 SP - 230 EP - 232 PG - 3 SN - 0013-6077 UR - https://m2.mtmt.hu/api/publication/31812337 ID - 31812337 LA - Hungarian DB - MTMT ER -