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A Silurian placoderm with osteichthyan-like marginal jaw bones
TLDR
A three-dimensionally preserved 419-million-year-old placoderm fish from the Silurian of China is described that represents the first stem gnathostome with dermal marginal jaw bones (premaxilla, maxilla and dentary), features previously restricted to Osteichthyes. Expand
Jaws and teeth of the earliest bony fishes
TLDR
Andreolepis and Lophosteus are not only the oldest but also the most phylogenetically basal securely identified osteichthyans known so far, indicating that they can be assigned to the stem group. Expand
Ventastega curonica and the origin of tetrapod morphology
TLDR
The skull, exceptionally preserved braincase, shoulder girdle and partial pelvis of Ventastega curonica are presented, a transitional intermediate form between the ‘elpistostegids’ Panderichthys and Tiktaalik and the Devonian tetrapods (limbed vertebrates) Acanthostega and Ichthyostega. Expand
Devonian vertebrates from East Greenland: a review of faunal composition and distribution
The Devonian vertebrate faunas of East Greenland are reviewed and their distribution discussed for the first time in the light of the most recently published stratigraphical framework for the area.Expand
Vertebrate remains from Upper Silurian – Lower Devonian beds of Hall Land, North Greenland
Vertebrate microscopic remains of twenty-six taxa of thelodonts, heterostracans, osteostracans, anaspids, acanthodians and chondrichthyans are described from limestone beds in two localities of LateExpand
Silurian and earliest Devonian birkeniid anaspids from the Northern Hemisphere
ABSTRACT The sculpture of scales and plates of articulated anaspids from the order Birkeniida is described and used to clarify the position of scale taxa previously left in open nomenclature. TheExpand
A NEW ACTINOPTERYGIAN FROM THE FAMENNIAN OF EAST GREENLAND AND THE INTERRELATIONSHIPS OF DEVONIAN RAY-FINNED FISHES
TLDR
The scheme of relationships suggests that actinopterygians invaded freshwater environments at least four times during the Devonian, while age constraints indicate that many of the cladogenic events between ingroup taxa included in this study occurred during or before the Givetian. Expand
The axial skeleton of the Devonian tetrapod Ichthyostega
TLDR
A new reconstruction of Ichthyostega is shown based on extensive re-examination of original material and augmented by recently collected specimens and reveals hitherto unrecognized regionalization in the vertebral column. Expand
Loganellia (Thelodonti, Agnatha) from the Lower Silurian of North Greenland
Isolated thelodont scales from several Lower Silurian samples from North Greenland are re-described and compared with European forms, to assess their taxonomical, stratigraphical andExpand
A new genus of Devonian tetrapod from North‐East Greenland, with new information on the lower jaw of Ichthyostega
A new genus and species of Devonian tetrapod has been identified from material collected in 1947 from the southern slope of Mt. Celsius, Ymer phi, North-East Greenland. The specimen preserves both ...
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