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The most primitive osteichthyan braincase?
Most living vertebrates, from teleosts to tetrapods, are osteichthyans (bony fishes), but the origin of this major group is poorly understood. The actinopterygians (ray-finned bony fishes) are theExpand
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Devonian fish remains from the Dulcie Sandstone and Cravens Peak Beds, Georgina Basin, central Australia
Fossil fish remains belonging to the WlIttagoonaspis assemblage are described from the Devonian rocks of the Georgina Basin, central Australia. The study is based on some 450 samples from 30Expand
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Placoderm anatomy any phylogeny: new insights
New specimens of acanthothoracid placoderms and related forms (Romundina, Murrindalaspis, Brindabellaspis) are described, illustrating aspects of placoderm anatomy in the assumed basal branchExpand
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Devonian vertebrate distribution patterns and cladistic analysis of palaegeographic hypotheses
  • G. Young
  • Geology
  • Geological Society, London, Memoirs
  • 1990
Abstract Early Devonian vertebrate faunal provinces are clearly defined for four regions: Euramerica, Siberia, China, and East Gondwana. The presence of osteostracans in southwest Siberia (Tuva,Expand
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Biostratigraphic and biogeographic context for tetrapod origins during the Devonian: Australian evidence
The geological context and evidence of age for three Australian occurrences attributed to Devonian tetrapods (trackways from Genoa River and the Grampians in Victoria, and an isolated jaw fromExpand
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Live birth in the Devonian period
The extinct placoderm fishes were the dominant group of vertebrates throughout the Middle Palaeozoic era, yet controversy about their relationships within the gnathostomes (jawed vertebrates) isExpand
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An exceptional Devonian fish from Australia sheds light on tetrapod origins
The transition from fishes to tetrapods was one of the most dramatic events in the evolution of vertebrates, but many pivotal fossils are incomplete, resulting in gaps in the data that are used forExpand
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Biogeography of Devonian vertebrates
Five faunal provinces based on vertebrates are proposed for Early Devonian time, as follows: a cephalaspid province (Euramerica), an amphiaspid province (Siberia), a tannuaspid province (Tuva); aExpand
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Interrelationships ofplacoderms revisited
Abstract From a set of new characters, the phylogeny of placoderms taken as a whole has been investigated using the computer programs PAUP and Mac Clade. The result corroborate the hypothesis of anExpand
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