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From
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To
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Geolocation
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Author - title
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Year
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| original | Ashgillian | Oklahoma | Loeblich,A.R.,Jr. et al. North American species of the Ordovician acritarch genus Aremoricanium. | 1971 | |
| details | Ashgillian | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |