Palaeontology: Beyond the Age of Fishes

@article{Coates2009PalaeontologyBT,
  title={Palaeontology: Beyond the Age of Fishes},
  author={Michael I. Coates},
  journal={Nature},
  year={2009},
  volume={458},
  pages={413-414}
}
  • M. Coates
  • Published 26 March 2009
  • Environmental Science
  • Nature
Discovery of an unusually intact and ancient fossil fish provides further evidence that the search for modern vertebrate origins requires breaking out of the Devonian and into the preceding period. 

The largest Silurian vertebrate and its palaeoecological implications

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The largest pre-Devonian vertebrate described is a predatory marine osteichthyan from the Silurian Kuanti Formation of Yunnan, China, with an estimated length of about 1 meter, and this finding refutes the assumption that pre-Emsian vertebrates were restricted to small body sizes.

A new osteichthyan from the late Silurian of Yunnan, China

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A new actinopterygian from the Late Devonian Gogo Formation, Western Australia

The study of early actinopterygians (ray‐finned fishes) from the Devonian has been hampered by imperfect preservation in the majority of taxa. The Late Devonian (early Frasnian) Gogo Formation of

Neurocranial anatomy of an enigmatic Early Devonian fish sheds light on early osteichthyan evolution

TLDR
A second skull of ‘Ligulalepis’ is described and micro-CT data is presented to reveal novel anatomical features, including cranial endocasts, which are shown to be variable in its development between specimens.

Muscle development in the shark Scyliorhinus canicula: implications for the evolution of the gnathostome head and paired appendage musculature

TLDR
Analysis of the development of specific muscular units integrating the cephalic and appendicular musculature of the shark model, Scyliorhinus canicula, suggests that head tissues have contributed to the formation of the pectoral appendages in the common ancestor of extant gnathostomes.

Cranial morphology of the Silurian sarcopterygian Guiyu oneiros (Gnathostomata: Osteichthyes)

TLDR
The skull roof bone pattern in the Guiyu clade that comprises Psarolepis and Achoania is restored, for the first time, and the large attachment area of the basicranial muscle indicates the presence of a well-developed intracranial joint in GuiyU.

Transposable elements dynamics in taxa with different reproductive strategies or speciation rate

TLDR
An evolutionary framework to establish the different rate of speciation among two or more taxa, then a comparison of the dynamics of the TE dynamics in three species of stick-insects of the Genus Bacillus and a contribute to the debate initiated in recent years about the possibility that a high TE content is linked to a high rate of Speciation.

Evolutionary hallmarks of the human proteome: chasing the age and coregulation of protein-coding genes

TLDR
A combined analysis of human protein-coding gene expression profiling and time-scale ancestry mapping, that places the genes in taxonomy clades and reveals eight evolutionary major steps (“hallmarks”), that include clusters of functionally coherent proteins.

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TLDR
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