Palmatolepis triangularis References Palmatolepis triangularis conodont Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Famennian Stage…first appearance of the conodont Palmatolepis triangularis. Three-quarters of all known upper Frasnian trilobite genera are represented at the GSSP, many of which subsequently became extinct. Read More…first appearance of the conodont Palmatolepis triangularis. Three-quarters of all known upper Frasnian trilobite genera are represented at the GSSP, many of which subsequently became extinct. Read More