Sedimentological data indicate greater range of water depths for Costistricklandia lirata in the Southern Appalachians
- Univ. of Tennessee, Knoxville (USA)
Two distinct horizons of the pentamerid brachiopod Costistricklandia lirata occur in the upper part of the Red Mountain Formation (Lower Silurian) in northern Alabama. Stratigraphic and sedimentologic characteristics of the rocks associated with the brachiopods suggest water depths of 15-150 m during times of low rates of terrigenous influx. Costistricklandid assemblages from the lower horizon are composed of extremely large individuals in association with a diverse population of large corals. They are interpreted to have lived in a protected environment. In an overlying horizon, costistricklandids occur in growth position at the base of a thick siliciclastic interval. These brachiopods lived in a storm-dominated environment and were buried in situ by the rapid influx of sediment associated with a passing storm.
- OSTI ID:
- 5551483
- Journal Information:
- Palaois; (United States), Vol. 5:4
- Country of Publication:
- United States
- Language:
- English
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