Geology and analysis of age and depositional environment using Mollusca fossils in Felda Aring 9, Gua Musang, Kelantan

Paleontology is one of the diciplines in geology field that concern on the study of the remnant or trace of an organism of a past geologic age, such as a skeleton or leaf imprint, embedded and preserved in the earth's crust, died and been buried in sediment and well preserved in sedimentary rock. Mollusca fossils acted as indicator in determination of the depositional environment of the past of the region. The classes of the mollusca phylum such as bivalvia, cephalopoda and gasptropoda were used as the index fossils to determine the depositional environment of the study area, wether there are deep marine enviromnent or shallow marine environment due their wide distribution and short term of life. There were found that most of bivalvia were sedimented at shallow marine environment of Anisian age, while the ammonoids, subclass of cephalopoda were sedimented at the deep marine environment of Ladinian. Ladinian and Anisian age was at Middle Triassic Epoch. This study focused on the identification of the species of the fossils based on comparison with the fossils found of the previous study, indentifying their age and thus determining their depositional environment by using mo llusca fossils as an indicator.