Revised Stratigraphic Ranges and the Phanerozoic Diversity of Agglutinated Foraminiferal Genera

Abstract

The stratigraphic ranges of 218 genera of agglutinated foraminifera have been modified based upon new original observations and studies published subsequent to the book "Foraminiferal Genera and their Classification" by Loeblich & Tappan (1987). Additionally, a total of 136 genera have been newly described or reinstated over the last 20 years. Our revision of stratigraphic ranges enables us to present a new diversity curve for agglutinated foraminifera based on the stratigraphic ranges of 764 genera distributed over the 91 Phanerozoic stratigraphic subdivisions given in the Gradstein et al. (2004) timescale.