. Bulletins of American paleontology. 12 Bulletin 338 with the exception of canonical variable 1 in M. can- alis. Spearman rank correlation coefficients suggest that change within two of the five species (M. brevis and M. cavernosa) is directional in canonical variable 1, and that change within four of the six species (M. lim- bata, M. brevis, M. canalis, and M. cavernosa) is di- rectional in canonical variable 2. In other words, cor- allite size is increasing upsection in M. cavernosa, and is decreasing upsection in M. brevis. Septal develop- ment is decreasing overall upsection in M. caverno
. Bulletins of American paleontology. 12 Bulletin 338 with the exception of canonical variable 1 in M. can- alis. Spearman rank correlation coefficients suggest that change within two of the five species (M. brevis and M. cavernosa) is directional in canonical variable 1, and that change within four of the six species (M. lim- bata, M. brevis, M. canalis, and M. cavernosa) is di- rectional in canonical variable 2. In other words, cor- allite size is increasing upsection in M. cavernosa, and is decreasing upsection in M. brevis. Septal develop- ment is decreasing overall upsection in M. cavernosa, M. canalis, M. brevis, and M. timbata. These results suggest that significant change may be occurring within MONTASTRAEA m < _i < <. 100 300 500 700 COMPOSITE SECTION 900 1100 B MONTASTRAEA CM m < < o Q -: < -5 4^ ? ? 100 300 500 700. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleontological Research Institution [etc. ]
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