Another finished Animal Alphabet: extinct animals

It was spring (end of May) when this Animal Alphabets challenge started and it is now finished short before December knocks at our door: all extinct animals from A to Z are drawn! As always, I learnt a lot performing this: I had never heard a word about most of those creatures before. There were a little bit too many dinosaurs for my taste, but it was fun reflecting about them as well. 
I hope the next challenge will be dog or cat breeds, but this will depend on the results of the poll.

Here are my six favourites, followed by a collage with all of them. Enjoy!