Publication Date:
1944-06-01
Description:
This paper is an endeavour to demonstrate a development in the fringe of the Trinucleidae, which attained its acme in the Upper Ashgillian as exemplified by the Girvan species Tretaspis cerioides (Angelin) var. sortita Reed.
Print ISSN:
0016-7568
Electronic ISSN:
1469-5081
Topics:
Geosciences