News: Feb 26, 2025 Show

Feb 26th:A new bill in Arizona is making its way through the Senate that would force sites like e621 to implement mandatory age verification for all users—or face potential lawsuits. This system would require third-party vendors to verify every user’s age through a government database. Not only is this a massive violation of privacy, but it also introduces serious risks, including identity theft through phishing schemes and other malicious methods. Worse still, we would have no control over ensuring that user data is permanently deleted after verification.

Since e621 operates out of Arizona, this law would almost certainly impact us if it passes. If you want to help ensure that we can continue serving you without being forced to collect personal information, we urge you to contact Arizona’s senators and ask them to vote NO on this bill.

Please help spread the word about this issue and encourage others to take action.
Further information on the bill itself can be found at the Free Speech Coalition: https://action.freespeechcoalition.com/bill/arizona-hb-2112/

Jan 7th: Small update to the Uploading Guidelines today: We now no longer allow paintovers of AI generated content. Or in other words AI generated content that has been edited to some degree by humans.

We still have a Discord server, come talk to us!
Want to advertise on e621? Click here!
Are you an artist uploading your own art to e621? Get verified now!

darren naish and perry the platypus (phineas and ferb and etc) created by albertonykus
Viewing sample resized to 21% of original (view original) Loading...
Description

The Cartoon Guide to Vertebrate Evolution

In which I discover the pain of drawing non-avemetarsalian archosauriforms (so many osteoderms!) and ungulates.

I like to think that the Big Vertebrate Tree is a useful resource, but it's not very user-friendly. As such, I have produced a simplified (yes, this is simplified) and more vibrant vertebrate cladogram.

Animals that have been colored in are extant species. Age ranges represent known fossil record and do not include ghost lineages. The animals placed along the branches (instead of at the tips) are all based on real taxa that approximate the likely ancestral morphology of certain groups, but I have left them unlabeled to prevent propagation of the misconception that we can identify whether said taxa are the actual ancestors of those groups. Absolutely nothing is to scale.

My apologies if I butchered the anatomy of or left out any of your favorite lineages. There were an immense number of groups and characteristics I included in my original outline that I had to cut out for considerations of space and time. Those who desire a more in-depth depiction at vertebrate phylogeny should consult the Big Tree and the technical literature.

I am more inclined to update this image than the Big Tree. However, it is still a massive project by my standards, so major revisions (if necessary) will likely be irregular. Suggestions and corrections are welcome.

Adventure Time-style Darren Naish was designed by classicalguy. Special thanks go to dracontes for helping me visualize ear evolution in therapsids.

Blacklisted (0)
Disable All Filters
(help)
  • Comments
    •

    user 302777

    Blocked

    and the award for the highest ammount of species tags on a single post goes to

    (insert drumroll here)

    albertonykus and this highly preposterous evolution chart!!!

  • Reply
  • |
  • 8
    •

    Over 18?

    You must be 18 years or older and agree to the terms of service to access this website.

    Content that is commonly considered objectionable is blacklisted by default. You may remove tags from this blacklist using the corresponding menu item.