We’re working on a series of posts that’s turning out to be a bigger project than we expected: more posts, and each one longer, than anticipated. Here’s a handy index in chronological order.

(I started writing this series of posts in 2019, and foolishly titled them “Supersaurus, Ultrasaurus and Dystylosaurus in 2019″. Now it’s 2021, and it would be silly to add more posts — as I intend to — under that title. Hence the retitling “… in the 21st Century”.)

See also these (mostly older) posts:

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