David Harper
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- 2019
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Mark
The Sirius Passet Lagerstätte of North Greenland—A geochemical window on early Cambrian low-oxygen environments and ecosystems
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- Contribution to journal › Article
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Mark
The sirius passet lagerstätte of north greenland : A remote window on the cambrian explosion
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- Contribution to journal › Scientific review
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Mark
An extraterrestrial trigger for the mid-Ordovician ice age : Dust from the breakup of the L-chondrite parent body
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- Contribution to journal › Article
- 2018
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Mark
The Great Ordovician Biodiversification Event (GOBE) : definition, concept and duration
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- Contribution to journal › Article
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Mark
Contextualizing the Onset of the Great Ordovician Biodiversification Event
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- Contribution to journal › Article
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Mark
Possible patterns of marine primary productivity during the Great Ordovician Biodiversification Event
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- Contribution to journal › Article
- 2017
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Mark
Mass extinctions over the last 500 myr : An astronomical cause?
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- Contribution to journal › Article
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Mark
Late Ordovician deep-water brachiopod fauna from Raheen, Waterford harbour, Ireland
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- Contribution to journal › Article
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Mark
A new silurian ophiuroid from the west of Ireland
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- Contribution to journal › Article
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Mark
Echinoids as hard substrates : Varied examples from the Oligocene of Antigua, Lesser Antilles
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- Contribution to journal › Article