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Life-Orientation Relationships of Some Eocene Bryozoan-Coral Associations
Journal of Paleontology
Vol. 44, No. 2 (Mar., 1970), pp. 343-345
Published by: SEPM Society for Sedimentary Geology
Stable URL: http://www.jstor.org/stable/1302547
Page Count: 5
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Specimens of Oligotresium sp., Lunulites jacksonensis (Canu & Bassler, 1920) and of L. bouei Lea, 1833, occur in Eocene deposits of the Gulf Coastal Plain with small unidentified corallites attached to the frontal surface of the lunulitiform zoaria. Position and relationship of the corallites on the bryozoans indicate orientation of fossil zoaria was apex-up, and that natatory activities by the zoaria were unlikely. The association apparently was not harmful to bryozoan colony or coral; the only effect was flatter zoarial growth than normal.
Journal of Paleontology © 1970 SEPM Society for Sedimentary Geology