A Fossil asilid Senoprosopis (Eosenoprosopisi romeri Hull, preserved in Florissant shale. 



(PHOTOGRAPH COURTESY DR. FRANK M. CARPENTER.) 



A RECENT ASILID PROTOCANTHUS PH I LADELPH ICUS MACQUAERT. 

 (PHOTOGRAPH COURTESY DR. ALEXANDER B. KLOTS.J 



