... with less-robust skeletons, no quantitative estimate of time-averaging exists. Here, we compare time-averaging in sympatric accumulations of the echinoid Leodia sexiesperforata and the bivalve Tucetona pectinata on a shallow carbonate platform of San Salvador Island, Bahamas. Using graphite-target...

... wedge ( Omori et al., 1976 ; Carter, 1990 ). The calcified base of the fibrous sublayer of Tucetona pectinata consists of thin layers which have an irregular fibrous prismatic texture. Both fibrous and lamellar layers are elastic under compressional stress, the lamellar layer also under tensional...

...: Americardia guppyi , Tucetona pectinata , Divalinga quadrisulcata , and Chione cancellata . Only complete shells and shell fragments with hinge were counted in each sample as one specimen accounting for a total of 4,497 shells. The taphonomic index for each species was calculated by coding approximately 50...

... restricted to shallow burrowers. Individuals of the glycymeridid Tucetona pectinata ( Gmelin, 1791 ) have been observed leaving meandering furrows behind them as they crawl along the substratum in the process of trying to bury themselves. They burrow sluggishly with the commissure vertical, but their life...