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Books > Earth & environment > Earth sciences > Palaeontology
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Niche Evolution and Phylogenetic Community Paleoecology of Late Ordovician Crinoids (Paperback)
Loot Price: R603
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Niche Evolution and Phylogenetic Community Paleoecology of Late Ordovician Crinoids (Paperback)
Series: Elements of Paleontology
Expected to ship within 10 - 15 working days
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Fossil crinoids are exceptionally suited to deep-time studies of
community paleoecology and niche partitioning. By merging
ecomorphological trait and phylogenetic data, this Element
summarizes niche occupation and community paleoecology of crinoids
from the Bromide fauna of Oklahoma (Sandbian, Upper Ordovician).
Patterns of community structure and niche evolution are evaluated
over a ~5 million-year period through comparison with the Brechin
Lagerstatte (Katian, Upper Ordovician). The authors establish
filtration fan density, food size selectivity, and body size as
major axes defining niche differentiation, and niche occupation is
strongly controlled by phylogeny. Ecological strategies were
relatively static over the study interval at high taxonomic scales,
but niche differentiation and specialization increased in most
subclades. Changes in disparity and species richness indicate the
transition between the early-middle Paleozoic Crinoid Evolutionary
Faunas was already underway by the Katian due to ecological drivers
and was not triggered by the Late Ordovician mass extinction.
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