Requested reference
Lyal, C. H. C. (2011). The dating of the Biologia Centrali-Americana. Zoological Bibliography 1(2): 67-100. 
-- Show included taxa
Lyal, C. H. C. (2011). The dating of the Biologia Centrali-Americana. Zoological Bibliography 1(2): 67-100. -- Show included taxa