Paleoenvironmental analysis can be limited by the ambiguity of the paleoecological significance of the fossils recorded. In general, reconstructions of paleoenvironment become less precise and less reliable with increasing geologic age as the affinities of ancient to modern forms become very distant. | Paleoenvironmental analysis can be limited by the ambiguity of the paleoecological significance of the fossils recorded. In general, reconstructions of paleoenvironment become less precise and less reliable with increasing geologic age as the affinities of ancient to modern forms become very distant. |