👉 Macrobuninae are a group of extinct reptiles that lived in North America during the Jurassic period, approximately 145-220 million years ago. They were part of the family Carcharhinidae and were characterized by their large size, elongated bodies, and powerful jaws. Macrobuninae had three main groups: the basal group (the first), the subbasal group (the second), and the postbasal group (the third).
