CAMBRO-ORDOVICIAN KERATOSE SPONGE-MICROBIAL ‘KERATOLITE’ CONSORTIA MIMIC STROMATOLITES
LEE, Jeong-Hyun, Department of Geological Sciences, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, KOREA, REPUBLIC OF and RIDING, Robert, PhD, DSc, Department of Earth and Planetary Sciences, University of Tennessee, 1621 Cumberland Ave., Knoxville, TN 37996