Life Through Time – Evolutionary Palaeontology (Part 4)

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The Ordovician graptolite Didymograptus murchisoni.

A pdf of the slides from class 4 can be downloaded here: 2013_LifeThruTime_Lect4

The article that suggested a link between meteorite impacts and the Great Ordovician Biodiversification Event can be read here.

A post on the Ordovician Fezouata fauna of Morocco, which contains amazing ‘Cambrian’ fossils, can be read here.

What is a species? We will examine this further in class 5, but a modern overview is provided here.

A short BBC Wales film on Cwm Hirnant and the end-Ordovician extinction can be found here.

Palaeocast is an excellent new website with a series of online interviews about hot topics in palaeontology and fossils.  with the discoverers of the giant Ordovician trilobite, Isotelus rex, can be found on Palaeocast here.

Earth scientist in York, fossilist across Yorkshire. Co-director of the Yorkshire Fossil Festival and palaeontologist for hire. Can be found twittering, facebooking, and instagramming as @fossiliam.


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