dr Łukasz Czepiński

@article{10.1093/zoolinnean/zlae048,

title = {Osteology, phylogenetic affinities, and palaeobiogeographic significance of the bizarre ornithischian dinosaur Ajkaceratops kozmai from the Late Cretaceous European archipelago},

author = {Łukasz Czepiński and Daniel Madzia},

url = {https://doi.org/10.1093/zoolinnean/zlae048},

doi = {10.1093/zoolinnean/zlae048},

issn = {0024-4082},

year  = {2024},

date = {2024-04-29},

urldate = {2024-01-01},

journal = {Zoological Journal of the Linnean Society},

pages = {zlae048},

abstract = {At the climax of their evolutionary history in the latest Cretaceous, ceratopsian dinosaurs were among the most dominant components of North American and Asian land ecosystems. In other continental landmasses, however, ceratopsians were extraordinarily rare and the affinities of their proposed representatives often turned out to be inconclusive. Arguably the most significant evidence of Ceratopsia from outside North America and Asia is represented by Ajkaceratops kozmai from the Santonian (Upper Cretaceous) of Hungary. We provide a detailed osteological description of Ajkaceratops and highlight its bizarre anatomy. Ajkaceratops has been ‘traditionally’ interpreted to represent a Bagaceratops-like coronosaur, and its occurrence on the European islands was hypothesized to probably result from an early Late Cretaceous dispersal event from Asia. However, while the snout of Ajkaceratops may resemble that of some ceratopsians, closer inspection of the preserved elements indicates that these similarities are largely superficial. While it cannot be ruled out that Ajkaceratops represents a highly peculiar member of the clade, its placement is far from certain. Still, the discovery of Ajkaceratops exemplifies the importance and uniqueness of European dinosaur faunas.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1080/02724634.2023.2265445,

title = {A new Middle Triassic vertebrate assemblage from Miedary (southern Poland)},

author = {Łukasz Czepiński and Wojciech Pawlak and Adam Rytel and Mateusz Tałanda and Tomasz Szczygielski and Tomasz Sulej},

url = {https://doi.org/10.1080/02724634.2023.2265445},

doi = {10.1080/02724634.2023.2265445},

year  = {2023},

date = {2023-10-27},

urldate = {2023-10-27},

journal = {Journal of Vertebrate Paleontology},

volume = {0},

number = {0},

pages = {e2265445},

publisher = {Taylor & Francis},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Czepiński_2023,

title = {Skull of a dromaeosaurid Shri devi from the Upper Cretaceous of the Gobi Desert suggests convergence to the North American forms},

author = {Łukasz Czepiński},

doi = {10.4202/app.01065.2023},

year  = {2023},

date = {2023-06-21},

urldate = {2023-06-21},

journal = {Acta Palaeontologica Polonica},

volume = {68},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Czepinski2021,

title = {An Upper Triassic Terrestrial Vertebrate Assemblage from the Forgotten Kocury Locality (Poland) with a New Aetosaur Taxon},

author = {Łukasz Czepiński and Dawid Dróżdż and Tomasz Szczygielski and Mateusz Tałanda and Wojciech Pawlak and Antoni Lewczuk and Adam Rytel and Tomasz Sulej},

url = {https://doi.org/10.1080/02724634.2021.1898977},

doi = {10.1080/02724634.2021.1898977},

year  = {2021},

date = {2021-04-14},

journal = {Journal of Vertebrate Paleontology},

pages = {e1898977},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Czepiski2020NewPS,

title = {New protoceratopsid specimens improve the age correlation of the Upper Cretaceous Gobi Desert strata},

author = {Łukasz Czepiński},

year  = {2020},

date = {2020-01-01},

journal = {Acta Palaeontologica Polonica},

volume = {65},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1080/08912963.2019.1593404,

title = {Ontogeny and variation of a protoceratopsid dinosaur Bagaceratops rozhdestvenskyi from the Late Cretaceous of the Gobi Desert},

author = {Łukasz Czepiński},

url = {https://doi.org/10.1080/08912963.2019.1593404},

doi = {10.1080/08912963.2019.1593404},

year  = {2020},

date = {2020-01-01},

journal = {Historical Biology},

volume = {32},

number = {10},

pages = {1394--1421},

publisher = {Taylor & Francis},

abstract = {Bagaceratops rozhdestvenskyi is a ceratopsian dinosaur from the Late Cretaceous Baruungoyot Formation of the Gobi Desert, closely related to Protoceratops spp. Several Bag. rozhdestvenskyi skulls demonstrate a wide range of variation in their morphology and size. Here I argue that the observed variability is most likely of intraspecific nature. Specimens classified in a few allegedly distinct species from the same or near-contemporary sediments, namely Gobiceratops minutus, Lamaceratops tereschenkoi and Platyceratops tatarinovi from Baruungoyot Formation, and Magnirostris dodsoni from Bayan Mandahu, are younger subjective synonyms of Bag. rozhdestvenskyi. They plausibly represent an ontogenetic series within the latter. Breviceratops kozlowskiiis a distinct taxon. The evolutionary relationships within Protoceratopsidae are complicated by the mosaic distribution of plesiomorphic and derived features in distinct species. I suggest that taxa distribution and observed changes in morphology are an evidence for the ancestral position of Protoceratops andrewsi among protoceratopsids. It implies possible temporary separation between the geological formations of the Gobi Desert yielding distinct protoceratopsid species. The novel evolutionary scenario suggests number of convergences that occurred in Protoceratopsidae and Ceratopsoidea (reduction of the premaxillary dentition, fusion of nasals, development of the accessory antorbital fenestra). Present study reveals the significance of the intraspecific and ontogenetic variation in the study of the neoceratopsian taxonomy.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Pawlak2019,

title = {Przegląd skamieniałości krcegowców i flory z terenów dzisiejszej Polski zgromadzonych w Muzeum Historii Naturalnej w Wiedniu},

author = {Wojciech Pawlak and Łukasz Czepiński and Aleksander Majchrzyk and Katarzyna Duk},

url = {https://geojournals.pgi.gov.pl/pg/article/view/26781},

issn = {0033-2151},

year  = {2019},

date = {2019-01-01},

journal = {Przegląd Geologiczny},

volume = {67},

number = {1},

pages = {48},

abstract = {Current territory of Poland was an exploration area for paleontologists from other European countries throughout the almost entire nineteenth century. A considerable part of findings were stored in institutions located beyond current borders of Poland. We have examined, documented and identified above

350 fossils housed in the Natural History Museum in Vienna (Naturhistorisches Museum Wien). The collection includes paleobotanical and paleozoological specimens from the Little Poland and the Upper Silesia. Some of these specimens are a unique material from the localities which are no longer available.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{skawinski_re-evaluation_2017,

title = {A re-evaluation of the historical ‘dinosaur’ remains from the Middle-Upper Triassic of Poland},

author = {Tomasz Skawiński and Maciej Ziegler and Łukasz Czepiński and Marcin Szermański and Mateusz Tałanda and Dawid Surmik and Grzegorz Niedźwiedzki},

url = {https://doi.org/10.1080/08912963.2016.1188385},

doi = {10.1080/08912963.2016.1188385},

year  = {2017},

date = {2017-01-01},

journal = {Historical Biology},

volume = {29},

number = {4},

pages = {442--472},

abstract = {AbstractThe so-called historical Polish discoveries of Triassic ‘dinosaurs’ have been repeatedly cited in papers and popular science books. Here, we re-evaluate each historical and purported Triassic dinosaur find from Poland. Additionaly, we describe several supposed ‘dinosaur’ bones collected by Polish geologists but only briefly mentioned: in regional geological journals, on collection labels, or in field notes. We attempt to assign all investigated specimens to the least inclusive taxon possible. Our revision indicates that part of this material represents non-dinosaur archosauromorph taxa. Most of the analysed specimens are fragmentary bones or isolated teeth and are indistinguishable from skeletal elements described from other well-known Triassic archosauromorph taxa. We conclude that fossils of dinosauriforms are present in the Upper Triassic of Silesia and Holy Cross Mountains. New analysis of Velocipes guerichi von Huene, 1932 holotype specimen from Kocury shows that it is the proximal part of fibula of a medium-sized theropod (or even neotheropod). Formally undescribed part of dinosauriform limb bone from the Holy Cross Mountains and V. guerichi from Silesia are the only identifiable dinosauromorph skeletal remains recognised in the Polish Triassic discovered prior to the description of Silesaurus opolensis Dzik, 2003 from the Upper Carnian of Krasiejów.},

note = {Publisher: Taylor & Francis 

_eprint: https://doi.org/10.1080/08912963.2016.1188385},

keywords = {},

pubstate = {published},

tppubtype = {article}

}