A science papercraft website wasn't where I expected to find toy automata, but their 2 newest downloads are prehistoric animal automatas:
紙工作ダウン*ード | BRHカード | *刊「生命誌」 | JT生命誌*究館
And on my quest for Samurai papercraft (watch this space) I came across this great website again, something for everyone:
https://www.iodata.jp/ilovedesk/papercraft/
And that was my 101st post! Yay!