An examination of the Devonian fishes of Michigan [PDF]
PeerJ, 2018 We surveyed the taxa, ecosystems, and localities of the Devonian fishes of Michigan to provide a framework for renewed study, to learn about the diversity and number of these fishes, and to investigate their connection to other North American faunas ...
Jack Stack, Lauren Sallan
doaj +2 more sources
Early Devonian fish material from Posongchong Formation of Guangnan, Yunnan, China [PDF]
古脊椎动物学报 (中英文版)New findings of early vertebrates, including placoderms, sarcopterygians, and the galeaspids Sanqiaspis rostrata, Macrothyraspis longicornis, Gantarostraspis gengi, Wenshanaspis sp., are described from Posongchong Formation (Pragian, Lower Devonian) in ...
XIAN Zu-Min, MO Xiong, GUAN Qi, ZHAO Ying-Tian, XUE Qin-Yuan, LI Qiang, LIU Jun-Ping, ZHU Min
doaj +1 more source
Fossil fishes from china provide first evidence of dermal pelvic girdles in osteichthyans. [PDF]
PLoS ONE, 2012 BACKGROUND: The pectoral and pelvic girdles support paired fins and limbs, and have transformed significantly in the diversification of gnathostomes or jawed vertebrates (including osteichthyans, chondrichthyans, acanthodians and placoderms).
Min Zhu +7 more
doaj +1 more source
Devonian stratigraphy in Estonia: current state and problems [PDF]
Estonian Journal of Earth Sciences, 2012 An updated version of the Devonian stratigraphical chart of Estonia with comments is presented. Estonian regional stratigraphical units are correlated with the standard conodont zonation and miospore zonation, used in the western part of the East ...
Elga Mark-Kurik, Anne Põldvere
doaj +1 more source
A large Late Devonian arthrodire (Vertebrata, Placodermi) from Poland [PDF]
Estonian Journal of Earth Sciences, 2018 The arthrodire placoderm, Dunkleosteus sp., is reported from the Upper Devonian (Frasnian) of the Holy Cross Mountains, Poland. The material comprises partially preserved remains of two individuals found in the Kellwasser-like horizon of the Płucki ...
Piotr Szrek, Olga Wilk
doaj +1 more source
Известия высших учебных заведений: Геология и разведка, 2016 The stratigraphie distribution and systematic composition of the Middle-Upper Devonian remains of antiarchs from the sediments of Central Kazakhstan are analyzed. Central Kazakhstan ichthyofauna contains mainly endemic taxons of antiarchs.
S. V. Moloshnikov
doaj +1 more source
SYSTEMATIC POSITION OF ANTIARCHS (VERTEBRATA, PLACODERMI) FROM THE FAMENNIAN OF TVER REGION, RUSSIA
Известия высших учебных заведений: Геология и разведка, 2017 New materials of the placoderm fish Bothriolepis heckeri Luksеvics from the Famennian of the Bilovo locality (Tver Region) are studied. This species is very similar to Livnolepis zadonica (H.Obrucheva) in the structure of cranial and postcranial armours ...
S. V. Moloshnikov, V. V. Linkevich
doaj +1 more source
Taphonomy of the vertebrate bone beds from the Klūnas fossil site, Upper Devonian Tērvete Formation of Latvia [PDF]
Estonian Journal of Earth Sciences, 2012 Combined sedimentological and taphonomical study of the siliciclastic sequence of the Tērvete Formation in the stratotypical area was aimed at revealing the formation of the three oryctocoenoses discovered and related structural and textural features of ...
Jeļena Vasiļkova +3 more
doaj +1 more source
Revision of the Late Devonian ptyctodonts (Vertebrata, Placodermi) from southern Poland [PDF]
Estonian Journal of Earth SciencesNew studies on Frasnian ptyctodonts, including the revision of historic material in addition to the description of new material, have resulted in the detailed description of two species of Ptyctodus (Ptyctodus obliquus, Ptyctodus kielcensis), eight ...
Katarzyna Grygorczyk +2 more
doaj +1 more source
Redescription of Phymolepis cuifengshanensis (Antiarcha: Yunnanolepididae) using high-resolution computed tomography and new insights into anatomical details of the endocranium in antiarchs [PDF]
PeerJ, 2018 Background Yunnanolepidoids constitute either the most basal consecutive segments or the most primitive clade of antiarchs, a highly diversified jawed vertebrate group from the Silurian and Early Devonian periods.
Yajing Wang, Min Zhu
doaj +2 more sources