''Clonograptus'' is a
genus of
graptolites. Groups of these
animals were connected by stalklike structures to a central region.
Species of ''Clonograptus'' are
zone fossils, and can be used to find the precise age of
Ordovician rocks.
References
Graptolite genera
Paleozoic life of New Brunswick
Paleozoic life of Newfoundland and Labrador
Paleozoic life of the Northwest Territories
{{Hemichordate-stub