Late Wenlock-Ludlow graptolite extinction and evolution: perspectives from Arctic Canada
An abrupt change in the composition of graptolite faunas just below, and at, the Wenlock-Ludlow boundary has recently been demonstrated in southeastern Germany and Kirgizistan. JAEGER (1991) terms that changeover the “Big Crisis”. On a global scale, throughout all but the uppermost Wenlock, Monograp...
| Published in: | The Paleontological Society Special Publications |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Cambridge University Press (CUP)
1992
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1017/s2475262200007401 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S2475262200007401 |