COLLABORATIVE RESEARCH: Biostratigraphic, Biogeographic, & Paleoecologic Significance of Calcareous Sponges, Upper Capitan Limestone (Late Permian), Guadalups Mountains, N

9321726 Rigby尽管对特拉华盆地（新墨西哥州/西德克萨斯州）著名的二叠纪“珊瑚礁”复合体进行了80多年的研究，但对这个生物礁中非常丰富的海绵还没有进行详细的研究。pi将a)在物种水平上识别和描述海绵，并解释它们的系统发育意义；2)评价该物种的生物地层学价值，评价二叠纪-三叠纪大灭绝对该物种的影响；3)研究这些海绵的古生物地理学问题；4)对藻海绵群落进行古生态学分析。

9321726 Rigby Despite more than 80 years of research on the renowned Permian "reef" complex of the Delaware Basin (New Mexico/West Texas), there have been no detailed studies of the very abundant sponges in this bioherm. PIs will a) identify and describe the sponges to species level and interpret their phylogenetic significance; 2) assess the biostratigraphic value of these species and evaluate effects of the Permo-Triassic mass extinction on this group of sponges; 3) address paleobiogeographic issues with respect to these sponges; and 4) conduct a paleoecologic analysis of the algal-sponge community.