| leafcutter bee nests and pupae from the rancho la brea tar pits of southern california: implications for understanding the paleoenvironment of the late pleistocene. | the rancho la brea tar pits is the world's richest and most important late pleistocene fossil locality and best renowned for numerous fossil mammals and birds excavated over the past century. less researched are insects, even though these specimens frequently serve as the most valuable paleoenvironemental indicators due to their narrow climate restrictions and life cycles. our goal was to examine fossil material that included insect-plant associations, and thus an even higher potential for signi ... | 2014 | 24718701 |