Figure 3: Percentage of records within each category of quality rating for various intervals of time.
From: A comprehensive database of quality-rated fossil ages for Sahul’s Quaternary vertebrates
Holocene (approximately the last 10 thousand years [ka] before present), Late Pleistocene (10 to 126 ka), Middle Pleistocene (126 to 750 ka) and Early Pleistocene (older than 750 ka). Four different ratings are shown: A*/A=high-quality ages and B/C=low-quality ages.
