Browsing Smithsonian Contributions to Paleobiology by Author "Cheetham, Alan H."

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Functional Morphology and Biofacies Distribution of Cheilostome Bryozoa in the Danian Stage (Paleocene) of Southern Scandinavia

Cheetham, Alan H. (1971)

Highly diversified assemblages of cheilostome Bryozoa in the Danian Stage of southern Sweden and Denmark represent the culmination of primarily divergent evolutionary trends originating in the first appearance of the group ...
Vector Approach to Size and Shape Comparisons among Zooids in Cheilostome Bryozoans

Cheetham, Alan H.; Lorenz, Douglas M. (1976)

Although zooid size and shape have long been used in comparative studies of cheilostome bryozoans, procedures for measuring these properties have been little investigated. Predominatly intussusceptive growth of buds suggests ...

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