Morphologic studies of fusulinids from the Lower Permian of West Pakistan

Abstract

A suite of samples from the Amb Formation in the Salt and Khisor Ranges of West Pakistan has yielded an abundance of fusulinids previously assigned to several species. There are many obvious differences between specimens and between samples in this suite. Traditional comparisons based on measurements at each volution support the idea that the visual differences are real; however, comparisons made at equal radii show great similarities .between specimens and between samples. The differences are related to the size of the proloculus and are not considered sufficient evidence for specific discrimination; thus, these specimens are assigned to one species, Monodiexadina kattaensis.