ascoceras मीनिंग इन हिंदी

Changes involve the arrangement and complexity of septa in the mature conch and in its shape, ending with the more elongate and compressed mature " Ascoceras ".
A phylogenetic sequence can be seen in the Ascoceratidae, from " Probillingsites " through " Schucertoceras ", then " Billingsites ", in the Upper Ordovician, and finally to the middle and upper Silurian " Ascoceras ".