Linked Life Data

10646601

Source:http://linkedlifedata.com/resource/pubmed/id/10646601

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
pubmed:issue
6766
pubmed:dateCreated
2000-2-10
pubmed:abstractText
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 the most successful living vertebrates in terms of diversity. They appear in the fossil record in the Late Silurian but are poorly known before the Late Devonian. Here we report the discovery of the oldest and most primitive actinopterygian-like osteichthyan braincase known, from 400-million-year-old limestone in southeastern Australia. This specimen displays previously unknown primitive conditions, in particular, an opening for a cartilaginous eyestalk. It provides an important and unique counterpart to the similarly aged and recently described Psarolepis from China and Vietnam. The contrasting features of these specimens, and the unusual anatomy of the new specimen in particular, provide new insights into anatomical conditions close to the evolutionary radiation of all modern osteichthyan groups.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0028-0836
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
403
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
185-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
The most primitive osteichthyan braincase?
pubmed:affiliation
Centre for Ecostratigraphy and Palaeobiology, Department of Earth and Planetary Sciences, Macquarie University, New South Wales, Australia. abasden@laurel.ocs.mq.edu.au
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't