Wedekindellina, genus of fusulinid foraminiferans, an extinct group of protozoans that possessed a hard shell of relatively large size; they are especially characteristic as fossils in deposits from the Pennsylvanian Subperiod (318 million to 299 million years ago) of midcontinental North America. The several species that are known serve as excellent guide, or index, fossils and enable Late Carboniferous time and rocks to be divided into smaller units.

This article was most recently revised and updated by John P. Rafferty.
Britannica Chatbot logo

Britannica Chatbot

Chatbot answers are created from Britannica articles using AI. This is a beta feature. AI answers may contain errors. Please verify important information using Britannica articles. About Britannica AI.