#marsupial
Rock Wallaby, Taronga Zoo Sydney
This week’s watercolor was a short-beaked echidna (Tachyglossusaculeatus) and a numbat (Myrmecobiusfasciatus).
Want to see more? I stream these paintings on twitch at https://m.twitch.tv/bonesthedestroyeroflegos
Today I found out the earliest known rodents are from AFTER the K-T extinction event that wiped out all non-avian dinosaurs.
The things you do for unnecessary details on the dinosaur project thingy.
(for the record, was thinking of a drawing with some dinosaur bones with a skull, like the one time when me and a friend found an old, mossy deer skull in the woods as kids, but then thought it should probably have some tooth marks, since rodents have a habit of munching on bones to get calcium, but were there rodents in Campanian? And it turns out no, there probably wasn’t, and wonder if there was anything with teeth strong enough to leave gnaw marks on a bone besides, like, tyrannosaurs, and oh, hey, look, someone’s overthinking things again! Remember when this was supposed to be just made up fantasy setting with some flavor of dinosaur once upon a time? Me neither)
Alright, so these probably aren’t the precise ones you’re after (I think the bone bed is a little early and a little too west) but Filikomys primaevus was a species of burrowing marsupials found in Montana during the Cretaceous. They have rather rodent-like front teeth that are deeply rooted, so plausibly could have gnawed in a similar way!
Also that whole genus (and it’s family) is mostly known from their teeth, but fossilised teeth have been found across all north america and asia from most points in the Cretaceous, so you can plausibly say that something SIMILAR existed in the area of your dinosaur project.
https://yaledailynews.com/blog/2020/11/19/fossils-reveal-sociality-in-early-mammals/