Mes passions natures
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Mes passions natures
Toutes les infos sur les mammifères, les oiseaux et la nature
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Cet arthropode marin vieux de 425 millions d'années peut avoir été l'un des lointains ancêtres de tous les arthropodes actuels

Cet arthropode marin vieux de 425 millions d'années peut avoir été l'un des lointains ancêtres de tous les arthropodes actuels | Mes passions natures | Scoop.it

"This spectacular 3D image of a newly discovered arthropod could rewrite the family tree of lobsters and spiders"

By Aviva Rutkin. New Scientist. « 3D fossil portrait could be the mother of all spiders »

[...]

« This 2-centimetre-long fossil arthropod, named Enalikter aphson, was found in rocks in Herefordshire, UK. It is the most recent addition to the megacheira, an extinct group of marine arthropods – and finding it in the 425-million-year-old rocks could indicate that megacheirans were distant ancestors of all arthropods alive today, including lobsters and spiders. »

[...]

Journal reference:

Proceedings of the Royal Society B, DOI: 10.1098/rspb.2013.2986

"A Silurian short-great-appendage arthropod"

 


Via Bernadette Cassel
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L'absence d'ADN chez les insectes fossilisés est confirmée [en anglais]

L'absence d'ADN chez les insectes fossilisés est confirmée [en anglais] | Mes passions natures | Scoop.it
It is hardly possible to talk about fossil insects in amber without the 1993 movie Jurassic Park entering the debate. The idea of recreating dinosaurs by extracting DNA from insects in amber has held the fascination of the public for two decades.

Via Bernadette Cassel
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Bernadette Cassel's curator insight, September 14, 2013 6:31 PM

 

→ Absence of Ancient DNA in Sub-Fossil Insect Inclusions Preserved in ‘Anthropocene’ Colombian Copal

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0073150