Bendix-Almgreen S. Silurian ostracoderms from Washington Land (North Greenland), with comments on cyathaspid structure, systematics and phyletic position. rapggu [Internet]. 1986 Dec. 31 [cited 2024 Jul. 3];132:89-123. Available from: https://geusjournals.org/index.php/rapggu/article/view/7970