@article{MTMT:32393069, title = {A new chelonibiid from the Miocene of Zanzibar (Eastern Africa) sheds light on the evolution of shell architecture in turtle and whale barnacles (Cirripedia: Coronuloidea)}, url = {https://m2.mtmt.hu/api/publication/32393069}, author = {COLLARETA, Alberto and NEWMAN, William A. and BOSIO, Giulia and COLETTI, Giovanni}, doi = {10.1111/1749-4877.12554}, journal-iso = {INTEGR ZOOL}, journal = {INTEGRATIVE ZOOLOGY}, unique-id = {32393069}, issn = {1749-4877}, abstract = {The fossil history of turtle and whale barnacles (Coronuloidea: Chelonibiidae, Platylepadidae, Coronulidae and +Emersoniidae) is fragmentary and has only been investigated in part. Morphological inferences and molecular phylogenetic analyses on extant specimens suggest that the roots of whale barnacles (Coronulidae) are to be found among the chelonibiid turtle barnacles, but the hard-part modifications that enabled early coronuloids to attach to the cetacean skin are still largely to be perceived. Here, we reappraise a fossil chelonibiid specimen from the Miocene of insular Tanzania that was previously referred to the living species Chelonibia caretta. This largely forgotten specimen is here described as the holotype of the new species +Chelonibia zanzibarensis. While similar to C. caretta, +C. zanzibarensis exhibits obvious external longitudinal parietal canals occurring in-between external longitudinal parietal septa that abut outwards to form T-shaped flanges, a character so far regarded as proper of the seemingly more derived Coronulidae and Platylepadidae. Along with these features, the presence of a substrate imprint on the shell exterior indicates that +C. zanzibarensis grasped its host's integument in much the same way as coronulids and platylepadids, albeit without the development of macroscopic parietal buttresses and bolsters. Thin section analyses of the inner parietal architecture of some extant and extinct coronuloids conclusively demonstrate that vestiges of comparable external parietal microstructures are present in some living members of Chelonibiidae. This observation strengthens the unity of Coronuloidea while significantly contributing to our understanding of the evolution of the coronuloid shell structure in adapting to a diverse spectrum of hosts.}, keywords = {EVOLUTION; SYSTEMATICS; functional morphology; Epibiosis; Chelonibia zanzibarensis sp. nov.}, year = {2021}, eissn = {1749-4869} } @article{MTMT:34061016, title = {Multispecies leatherback turtle assemblage from the Oligocene Chandler Bridge and Ashley formations of South Carolina, USA}, url = {https://m2.mtmt.hu/api/publication/34061016}, author = {Fallon, Bailey R. and Boessenecker, Robert W.}, doi = {10.4202/app.00740.2020}, journal-iso = {ACTA PALAEONTOL POL}, journal = {ACTA PALAEONTOLOGICA POLONICA}, volume = {65}, unique-id = {34061016}, issn = {0567-7920}, abstract = {Paleogene dermochelyid species richness far exceeded that of today. Leatherback sea turtles were most species rich in the Paleogene, but their richness declined sharply during the Neogene with only one species existing today, Dermochelys coriacea. We describe the fossil remains of three leatherback genera (Natemys, Psephophorus, and Egvptemys) from the upper Oligocene Chandler Bridge Formation and two (Natent vs and Psephophorus) from the lower Oligocene Ashley Formation of South Carolina, USA. The fossils consist of isolated and some associated carapacial ossicles. Several ossicles are referred to Natemys sp. because their scalloped edges are indicative of the campacial sunflower pattern specific to this genus. Additionally, two Natemys morphotypes (siatemys sp. 1 and 2) are distinguished based on differences in ossicle thickness and internal structure. We refer two ossicles to cf. Psephophorus sp. because of their internal diploic structure and because one has a dorsal radial pattern while the other has a prominent ridge that exhibits strong visceral concavity. Finally, we refer one ossicle to cf. Egyptemys sp. because it has a shallow keel that shows little expression on the visceral surface, although we also acknowledge the ossicle's similarity to some ridged ossicles of the genus Psephophorus. These ossicles represent the first multispecies assemblage of leatherback fossils reported worldwide. Furthermore, the specimens fill both temporal and geographic gaps for extinct leatherback genera and represent the first formally described dermochelyids from South Carolina and the Oligocene of the Atlantic Coastal Plain.}, keywords = {Miocene; Pliocene; Paleogene; MIDDLE; Oligocene; Eocene; taphonomy; Chelonioidea; Dermochelyidae; cirripedia; Natemys; Egyptemys; Psephophorus; FOSSIL SEA-TURTLES; PROCOLPOCHELYS}, year = {2020}, eissn = {1732-2421}, pages = {763-776} } @article{MTMT:31500718, title = {Turtle remains from the late Miocene of the Cessaniti area, southern Italy-insights for a probable Tortonian chelonian dispersal from Europe to Africa}, url = {https://m2.mtmt.hu/api/publication/31500718}, author = {Georgalis, Georgios L. and Insacco, Gianni and Rook, Lorenzo and Spadola, Filippo and Delfino, Massimo}, doi = {10.1186/s13358-020-00202-y}, journal-iso = {SWISS J PALAEON}, journal = {SWISS JOURNAL OF PALAEONTOLOGY}, volume = {139}, unique-id = {31500718}, issn = {1664-2376}, abstract = {We here describe turtle remains from the late Miocene (Tortonian) of Cessaniti (Calabria, southern Italy), an area that recently has been palaeogeographically reconstructed as being, at that time of the Neogene, directly connected (or at least rather proximate) to northern Africa, instead of Europe. The material pertains to three different turtle clades, i.e., pan-trionychids, pan-cheloniids, and pan-geoemydids. Although the material is incomplete, it nevertheless permits a more precise identification for the pan-trionychid specimens, which are referred to the species Trionyx pliocenicus, as well as the pan-geoemydid, which is attributed to the genus Mauremys. Especially for the case of T. pliocenicus, the new Cessaniti specimens expand its geographic and stratigraphic distribution and further comprise the sole existing material known for this species, considering that its holotype and so far only known material is currently lost. Overall, besides its taxonomic significance, the Cessaniti chelonian assemblage affords the potential for important biogeographic implications, attesting that the lineages of Trionyx and Mauremys could have potentially used the Sicily-Calabria arch for their dispersal from Europe to Africa during the Tortonian. The new turtle specimens further complement the associated mammal remains in envisaging the Cessaniti assemblage as a mosaic of both African and Eurasian (Pikermian) faunal elements.}, keywords = {Miocene; biogeography; Testudines; Trionyx; Mauremys; Pan-Cheloniidae}, year = {2020}, eissn = {1664-2384} } @article{MTMT:31077826, title = {The early composition and evolution of the turtle shell (Reptilia, Testudinata)}, url = {https://m2.mtmt.hu/api/publication/31077826}, author = {Szczygielski, Tomasz and Sulej, Tomasz}, doi = {10.1111/pala.12403}, journal-iso = {PALAEONTOLOGY}, journal = {PALAEONTOLOGY}, volume = {62}, unique-id = {31077826}, issn = {0031-0239}, abstract = {The shell of the oldest true turtle (Testudinata) branch (Proterochersidae) from the Late Triassic (Norian) of Poland and Germany was built in its anterior and posterior part from an osteodermal mosaic which developed several million years after the plastron, neurals and costal bones. We provide the most detailed description of the shell composition in proterochersids to date, together with a review of the shell composition in other Triassic pantestudinates. A scenario of early evolution of the turtle shell is proposed based on new data, and the possible adaptive meaning of the observed evolutionary changes is discussed. These observations are consistent with the trend of shell simplification previously reported in turtles. Several aspects of proterochersid shell anatomy are intermediate between Odontochelys semitestacea and more derived turtles, supporting their stem phylogenetic position. Three additional ossifications were sutured to xiphiplastra and pelvis in Proterochersis spp. and at least in some individuals the nuchal bone was paired. The peripherals, suprapygals, and pygal bone are most likely to be of osteodermal origin and homologous to the proterochersid shell mosaic.}, keywords = {Norian; Testudinata; turtle shell; dermal armour; Proterochersidae; carapace evolution}, year = {2019}, eissn = {1475-4983}, pages = {375-415}, orcid-numbers = {Szczygielski, Tomasz/0000-0001-5108-8493} } @article{MTMT:31077827, title = {Paleogene Turtles of Crimea}, url = {https://m2.mtmt.hu/api/publication/31077827}, author = {Zvonok, E. A. and Danilov, I. G.}, doi = {10.1134/S003103011901012X}, journal-iso = {PALEONTOL J+}, journal = {PALEONTOLOGICAL JOURNAL}, volume = {53}, unique-id = {31077827}, issn = {0031-0301}, abstract = {This paper describes remains of fossil turtles from five Paleogene localities of Crimea. Two are Danian (Ak-Kaya 2 and Sakharnaya Golovka) and three are Bartonian (Ak-Kaya 1, Bakhchisarai and Prolom). The best studied turtle fauna comes from the Ak-Kaya 1 locality and includes three taxa: marine Argillochelys sp. (Cheloniidae) and Cosmochelys sp. (Dermochelyidae), and an unidentified soft-shelled turtle (Trionychidae indet.). Argillochelys sp. shows similarities with Argillochelys antiqua (Konig, 1825) from the Eocene of Europe. The new data expands our knowledge of intraspecific variability and the distribution of turtles of the genera Argillochelys and Cosmochelys. Unidentified cheloniids (Bakhchisarai, Prolom, and Sakharnaya Golovka), dermochelyids (Bakhchisarai and Prolom) and trionychids (Ak-Kaya 2 and Prolom) are described from other Paleogene localities of Crimea.}, keywords = {Paleogene; Crimea; Trionychidae; Cheloniidae; Dermochelyidae}, year = {2019}, eissn = {1555-6174}, pages = {62-73} } @article{MTMT:31077828, title = {Paleogene Turtles of the Crimea}, url = {https://m2.mtmt.hu/api/publication/31077828}, author = {Звонок, Е.А. and Данилов, И.Г. and Zvonok, E.A. and Danilov, I.G.}, doi = {10.1134/S0031031X19010148}, journal-iso = {PALEONTOL ZH}, journal = {PALEONTOLOGICHESKII ZHURNAL}, unique-id = {31077828}, issn = {0031-031X}, abstract = {Описаны ископаемые черепахи из пяти палеогеновых местонахождений Крыма: двух - датского возраста (Ак-Кая 2 и Сахарная Головка) и трех - бартонского возраста (Ак-Кая 1, Бахчисарай и Пролом). Наиболее изученной является фауна черепах местонахождения Ак-Кая 1, которая включает три таксона: морских черепах Argillochelys sp. (Cheloniidae) и Cosmochelys sp. (Dermochelyidae), а также неопределенную трехкоготную черепаху (Trionychidae indet.). Argillochelys sp. обнаруживает сходство с A. antiqua (Konig, 1825) из эоцена Европы. Новые данные расширяют представления о внутривидовой изменчивости и распространении черепах родов Argillochelys и Cosmochelys. Из других палеогеновых местонахождений Крыма описаны неопределенные хелонииды (Бахчисарай, Пролом и Сахарная Головка), дермохелииды (Бахчисарай и Пролом) и трионихиды (Ак-Кая 2 и Пролом).This paper describes remains of fossil turtles from five Paleogene localities of the Crimea, two of which are of the Danian age (Ak-Kaya 2 and Saharnaya Golovka) and three ones are of the Bartonian age (Ak-Kaya 1, Bakhchisaray and Prolom). The most studied is the turtle fauna of Ak-Kaya 1 locality which includes three taxa: sea turtles Argillochelys sp. (Cheloniidae) and Cosmochelys sp. (Dermochelyidae) and indeterminate soft-shelled turtle (Trionychidae indet.). Argillochelys sp. shows similarities with Argillochelys antiqua (Konig, 1825) from the Eocene of Europe. New data expands knowledge on the intraspecies variability and distribution of turtles of the genera Argillochelys and Cosmochelys. Indeterminate cheloniids (Bakhchisaray, Prolom and Saharnaya Golovka), dermochelyids (Bakhchisaray and Prolom) and trionychids (Ak-Kaya 2 and Prolom) are described from other Paleogene localities of the Crimea.}, keywords = {Paleogene; Crimea; Trionychidae; Cheloniidae; Dermochelyidae}, year = {2019}, pages = {61-72} } @article{MTMT:34061017, title = {Taphonomy and palaeoecology of the lower Miocene marine vertebrate assemblage of Ullujaya (Chilcatay Formation, East Pisco Basin, southern Peru)}, url = {https://m2.mtmt.hu/api/publication/34061017}, author = {Bianucci, Giovanni and Collareta, Alberto and Bosio, Giulia and Landini, Walter and Gariboldi, Karen and Gioncada, Anna and Lambert, Olivier and Malinverno, Elisa and de, Muizon Christian and Varas-Malca, Rafael and Villa, Igor Maria and Coletti, Giovanni and Urbina, Mario and Di, Celma Claudio}, doi = {10.1016/j.palaeo.2018.08.013}, journal-iso = {PALAEOGEOGR PALAEOCL}, journal = {PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY}, volume = {511}, unique-id = {34061017}, issn = {0031-0182}, abstract = {The taphonomy and palaeoecology of the early Miocene (Burdigalian) vertebrate assemblage of Ullujaya (East Pisco Basin, Peru) is here described. Vertebrate remains are concentrated in marine facies (Ct1a association) of the exposed Chilcatay Formation (dated 19-18 Ma) deposited within a 30-40 m deep, semi-enclosed, offshore environment. Coupled with ichnological observations, the size distribution of pyrite framboid relics reveals fluctuation of euxinic and oxic-dysoxic conditions at the seafloor. The assemblage is dominated by toothed cetaceans (kentriodontids, squalodelphinids, physeteroids, and the eurhinodelphinid-like Chilcacetus), together with a large dermochelyid turtle, some bony fish, and diverse elasmobranchs, mostly juveniles of Carcharhinus brachyurus and Cosmopolitodus hastalis. The vertebrate assemblage comprises a coastal community, dominated by mesopredators, representative of a warm-temperate, sheltered embayment connected with riverine and open ocean environments. Vertebrate skeletons are typically disarticulated and incomplete, and some bone elements display shark bite marks. Microborings are observed at the bone surface. Bones exhibit a good degree of apatite mineralisation and bone cavities are locally filled by Ca-Mg carbonates. Our taphonomic observations suggest prolonged flotation of carcasses during which they were subject to biogenic and physical processes of partial destruction (including scavenging by sharks), before final deposition on a soft compact substrate. Preservation was favoured by the oxygen-deficient bottom conditions that inhibited the action of benthic macro-scavengers.}, keywords = {Sequence stratigraphy; LARGE-SCALE; Geography, Physical; Geosciences, Multidisciplinary; Burdigalian; Cetacea; Elasmobranchii; Fossil-Lagerstdtte; Palacoenvironments; Middle Eocene; Nazca Ridge; Tectonic erosion; PLIOCENE SHARK ATTACK; CARCHARHINUS-BRACHYURUS; MYLIOBATIS-GOODEI; EAGLE RAY}, year = {2018}, eissn = {1872-616X}, pages = {256-279}, orcid-numbers = {Gariboldi, Karen/0000-0002-7978-7496; Gioncada, Anna/0000-0002-8513-7377; Lambert, Olivier/0000-0003-0740-5791; Malinverno, Elisa/0000-0002-9124-5155; Villa, Igor Maria/0000-0002-8070-8142} } @misc{MTMT:30354250, title = {Novel data on aetosaur (Archosauria, Pseudosuchia) osteoderm microanatomy and histology: palaeobiological implications}, url = {https://m2.mtmt.hu/api/publication/30354250}, author = {Cerda, I.A. and Desojo, J.B. and Scheyer, T.M.}, doi = {10.1111/pala.12363}, volume = {61}, unique-id = {30354250}, year = {2018}, pages = {721-745} } @article{MTMT:30553778, title = {Remains of Leatherback turtles, Dermochelys coriacea, at Mid-Late Holocene archaeological sites in coastal Oman: clues of past worlds}, url = {https://m2.mtmt.hu/api/publication/30553778}, author = {Frazier, John G. and Azzara, Valentina and Munoz, Olivia and Marcucci, Lapo Gianni and Badel, Emilie and Genchi, Francesco and Cattani, Maurizio and Tosi, Maurizio and Delfino, Massimo}, doi = {10.7717/peerj.6123}, journal-iso = {PEERJ}, journal = {PEERJ}, volume = {6}, unique-id = {30553778}, issn = {2167-8359}, abstract = {Small, irregular isolated bones identified as remains of leatherback turtles (Dermochelys coriacea) were recovered from Mid to Late Holocene sites at Ra's al-Hamra and Ra's al-Hadd, coastal Oman. These provide the third instance of this animal being documented from any prehistoric site anywhere, and the records provide one of the oldest, if not the oldest, dates for this distinctive chelonian-even though they do not refer to fossils. Decades of research in this region has yielded vast amounts of archeological information, including abundant evidence of intense exploitation and utilization of marine turtles from about 6,500 to 4,000 BP. During part of this period, turtle remains in human burials have been extraordinary; the turtle involved, Chelonia mydas, has been abundant in the region during modern times. Yet despite intense and varied forms of prehistoric marine resource exploitation, and major, long-term archeological work, no other turtle species has been previously authenticated from these, or other coastal sites. The documentation of remains of the largest and most distinctive of living marine turtles, D. coriacea, at Ra's al-Hamra and Ra's al-Hadd, presented herein, provide detailed information that serves as the basis for future interpretations and discussions regarding incomplete, disarticulated remains from the Mid to Late Holocene, particularly in reference to taphonomic questions and diverse environmental conditions.}, keywords = {Neolithic; taphonomy; Bronze Age; Marine turtles; Ra's al-Hamra; Zooarcheology; Ossicles; Ra's al-Hadd}, year = {2018}, eissn = {2167-8359}, orcid-numbers = {Munoz, Olivia/0000-0002-6180-194X; Delfino, Massimo/0000-0001-7836-7265} } @article{MTMT:34061018, title = {Marine vertebrate fauna from the late Eocene Samlat Formation of Ad-Dakhla, southwestern Morocco}, url = {https://m2.mtmt.hu/api/publication/34061018}, author = {Zouhri, Samir and Khalloufi, Bouziane and Bourdon, Estelle and De, Broin France De lapparent and Rage, Jean-Claude and M'Haidrat, Leila and Gingerich, Philip D. and Elboudali, Najia}, doi = {10.1017/S0016756817000759}, journal-iso = {GEOL MAG}, journal = {GEOLOGICAL MAGAZINE}, volume = {155}, unique-id = {34061018}, issn = {0016-7568}, abstract = {Late Eocene deposits of the Samlat Formation, south of Ad-Dakhla city, southwestern Morocco, have yielded a mixed marine and terrestrial vertebrate fauna. Abundant and diversified chondrichthyans and archaeocete whales have been found, as well as the remains of sirenians and proboscideans. Here we describe the rest of this fossil assemblage which includes actinopterygians, turtles, palaeophiid snakes, crocodiles and pelagornithid seabirds. Actinopterygians are represented by at least two large-sized taxa, a scombroid probably close to the extant Acanthocybium or to the Eocene Aramichthys, and a siluriform related to the Ariidae. Turtles include at least four species represented by shell fragments. This mixed coastal and continental turtle fauna includes one littoral species of Podocnemididae, one or two deep-sea species of Dermochelyidae and one deep-sea species of Cheloniidae. Another turtle species is assigned to the terrestrial Testudinidae. Fragmentary crocodilian remains indicate the presence of undetermined eusuchians tentatively referred to Gavialidae and/or to Crocodylidae. Snake vertebrae are tentatively attributed to the genus Pterosphenus (Palaeophiidae) pending the discovery of new material. Avian remains belong to a large pseudo-toothed bird (Pelagornithidae). Pseudo-tooth morphology resembles that of the late Oligocene - Neogene genus Pelagornis. Additional bird remains are needed for a more precise taxonomic assignment. The fossil assemblage and palaeoenvironment of the upper Eocene deposits of the Samlat Formation appear closely related to those of the upper Eocene - lower Oligocene deposits of the Fayum (Egypt). The initial overview of this fauna provides an important contribution to the study of vertebrate evolution in North Africa near the Eocene-Oligocene transition.}, keywords = {Aves; Vertebrates; MOROCCO; Phosphate deposits; Late Eocene; Samlat Formation; Ad-Dakhla; Early Oligocene; SIDE-NECKED TURTLES; BONY-TOOTHED BIRD; MIDDLE-EOCENE; SCOMBROID FISHES; LATE PALEOCENE; PELAGORNITHIDAE}, year = {2018}, eissn = {1469-5081}, pages = {1596-1620}, orcid-numbers = {Zouhri, Samir/0000-0002-3811-9977; Khalloufi, Bouziane/0000-0002-6161-3674; Bourdon, Estelle/0000-0002-5989-1982; Gingerich, Philip D./0000-0002-1550-2674} } @article{MTMT:25104713, title = {Bone shell microstructure of Condorchelys antiqua Sterli, 2008, a stem turtle from the Jurassic of Patagonia}, url = {https://m2.mtmt.hu/api/publication/25104713}, author = {Cerda, Ignacio A and Sterli, Juliana and Scheyer, Torsten M}, doi = {10.1016/j.crpv.2015.01.004}, journal-iso = {CR PALEVOL}, journal = {COMPTES RENDUS PALEVOL}, unique-id = {25104713}, issn = {1631-0683}, year = {2015}, eissn = {1777-571X} } @article{MTMT:25381295, title = {Neck motion in turtles and its relation to the shape of the temporal skull region}, url = {https://m2.mtmt.hu/api/publication/25381295}, author = {Werneburg, Ingmar}, doi = {10.1016/j.crpv.2015.01.007}, journal-iso = {CR PALEVOL}, journal = {COMPTES RENDUS PALEVOL}, volume = {14}, unique-id = {25381295}, issn = {1631-0683}, year = {2015}, eissn = {1777-571X}, pages = {527-548} } @article{MTMT:24332875, title = {The shell bone histology of fossil and extant marine turtles revisited}, url = {https://m2.mtmt.hu/api/publication/24332875}, author = {Scheyer, TM and Danilov, IG and Sukhanov, VB and Syromyatnikova, EV}, doi = {10.1111/bij.12265}, journal-iso = {BIOL J LINN SOC}, journal = {BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY}, volume = {112}, unique-id = {24332875}, issn = {0024-4066}, year = {2014}, eissn = {1095-8312}, pages = {701-718} }