Crinoid stalk flexibility: theoretical predictions and fossil stalk postures

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Crinoid stalk flexibility: theoretical predictions and fossil stalk postures

Flexibilities in Lower Mississippian crinoid stalks were inferred from preserved postures and shown not to conform with predictions of a cantilever beam model. Flexibilities were not correlated with hard-part characters such as stalk diameter, stalk length, or columnal height. The lack of correspondence between the predictions of the cantilever model and observed flexibilities implies that the ...

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ژورنال

عنوان ژورنال: Lethaia

سال: 1996

ISSN: 0024-1164,1502-3931

DOI: 10.1111/j.1502-3931.1996.tb01836.x