Anisograptidae is an extinct family of graptolites.
As the first planktic graptolites, they play a crucial role for understanding the transition of graptolites from ocean floor suspension feeders to ocean surface plankton during the early Ordovician.
[1] Anisograptids can be quadriradiate (Rhabdinopora, Staurograptus), triradiate (Anisograptus, Triograptus), or biradiate (Adelograptus, Kiaerograptus).
[1] List of genera from Maletz (2014):[2]
This hemichordate-related article is a stub.