A few nice extinct animals images I found:
n435_w1150
Image by BioDivLibrary
Extinct monsters and creatures of other days
London :Chapman & Hall,1910.
biodiversitylibrary.org/page/13776580
n421_w1150
Image by BioDivLibrary
Extinct monsters and creatures of other days
London :Chapman & Hall,1910.
biodiversitylibrary.org/page/13776566