Can other mammals besides Xenarthra develop osteoderms?
I couldn't find information about any mammal outside of Xenarthra clade with osteoderms, and the fact that none other species have developed osteoderms as armor instead of keratin structures like the pangolin scales or the porcupine spikes makes me think that those species can't/couldn't.
Did all other mammals lose this ability to develop osteoderms? and if so, why? at what point in its evolution?
After all Xenarthra aren't the most basal mammal clade, so having osteoderms is not a basal feature reminiscent of common ancestors with osteoderms.
how do you draw osteoderms? I am trying to draw some crocodylomorphs
Ankylosaur Scute/Osteoderm? Found in Badlands of Central Alberta. Note the weaved like fiberous texture. I've seen other Ankylosaur fossils with similar texture & appearance.
reddit.com/gallery/q2ydju
Do we know which is more accurate for this species—osteoderms with a similar/matching color to the skin, as in the first pic, or darker osteoderms with a different color than the skin, as in the second pic? [Art is not mine]
reddit.com/gallery/oqckk5
Pleistocene of Brazil: Holmesina taking nap under a Tabebuia tree, while a Yellow-headed Caracara is having a snack out of its parasitized osteoderms.
Possible cretaceous osteoderm or scute? Note the keel running down the center & I also attached a close up to show skin like texture. Found in central Alberta Badlands near Red Deer River. Help ID please :)
reddit.com/gallery/p9s3lg
Damaged armour: Ichnotaxonomy and paleoparasitology of bioerosion lesions in osteoderms of Quaternary extinct armadillos
A phenomenally well preserved specimen of Kunbarrasaurus, an ankylosaurid once native to Australia. It has intact armour with scales and osteoderms. There's even evidence of diet, with well preserved gut contents consisting of vascular as well as vesicular plant tissue, fruiting bodies and seeds.
Bony plates, washed up on beach, Newport OR, what are these and who do they belong to? Osteoderms? Shells? Jaws?
reddit.com/gallery/pd3jsu
A Late Cretaceous dinosaur and crocodyliform faunal association–based on isolate teeth and osteoderms–at Cerro Fortaleza Formation (Campanian-Maastrichtian) type locality, Santa Cruz, Argentina
journals.plos.org/plosone…
🔥 Already being the largest lizard alive today, Komodo Dragons have chain mail-like scales that show up during Adulthood, acting protection during conflict with other dragons. These are called Osteoderms 🔥
Do osteoderms count as an exoskeleton?
And why? / why not?
Mind be kind of a daft question but I can’t seem to find an answer elsewhere. Thanks!
The huge plates on the back of stegosaurus dinosaurs are similar to the armor of crocodiles only obviously much larger. They're called osteoderms, literally bone skin.
https://en.wikipedia.org/wiki/Osteoderm
The Dwarf caiman (Paleosuchus palpebrosus) is the smallest living crocodilian, growing to about 1.2-1.5 meters in length. They also have the most osteoderms (bone plates) of all living crocodilians.
Slowly reconstructing the short nosed sturgeon, putting the osteoderms back on. Interestingly enough they don't all touch and it makes putting thinks back together tricky.
Interesting Acquisition- supposedly part of some extinct varmint or another, any ideas? Someone suggested something along the lines of an osteoderm, perhaps?
American alligator friend, osteoderm was very confusing
Alleged ancient jewelry or ornamentation made from Glossotherium osteoderms, found in the Santa Elina shelter in central Brazil
Eretmorhipis, an Early Triassic icthyosauromorph with big back osteoderms and a tiny Platypus-like head
We need 'readers' to be 'osteoderms' and 'users' to be 'broken shins'. Discuss whether this is the will of ank.
Ceratosaurus nasicornis was a big theropod that lived in Jurassic North America, recognized for its prominent facial horns and dorsal osteoderms. From the indie game Prehistoric Kingdom
Saltasaurus loricatus from Late Cretaceous Argentina is currently the only known genus of sauropod to have osteoderms.
Elaborate Komodo Dragon Armor Defends Against Other Dragons -- "Bony plates called osteoderms (colored orange) cover the skull of an adult Komodo dragon. Credit: The University of Texas at Austin."
The skull of a Gila Monster is covered in osteoderms, bony scales that are fused to the skull.
Fact: "Scute" is a funnier word than osteoderm.
Elaborate Komodo Dragon Armor Defends Against Other Dragons -- "Bony plates called osteoderms (colored orange) cover the skull of an adult Komodo dragon. Credit: The University of Texas at Austin."
Osteoderms in snakes
Just wondering if any species have them other than the dragon snake (xenodermus javanicus) since there is next to nothing on their captive care.
Dinosaurs-however-the-hell-I-want: Era-crossed birthday boys
Any I'd on this chonky sauropod?
SERIOUS: This subreddit needs to understand what a "dad joke" really means.
I don't want to step on anybody's toes here, but the amount of non-dad jokes here in this subreddit really annoys me. First of all, dad jokes CAN be NSFW, it clearly says so in the sub rules. Secondly, it doesn't automatically make it a dad joke if it's from a conversation between you and your child. Most importantly, the jokes that your CHILDREN tell YOU are not dad jokes. The point of a dad joke is that it's so cheesy only a dad who's trying to be funny would make such a joke. That's it. They are stupid plays on words, lame puns and so on. There has to be a clever pun or wordplay for it to be considered a dad joke.
Again, to all the fellow dads, I apologise if I'm sounding too harsh. But I just needed to get it off my chest.
Blind Girl Here. Give Me Your Best Blind Jokes!
This subreddit is 10 years old now.
I'm surprised it hasn't decade.
Question, is the spiked, club like tail of the pachycephalosaurs in Saurian based on any real evidence, or is it just made up.
Dropped my best ever dad joke & no one was around to hear it
For context I'm a Refuse Driver (Garbage man) & today I was on food waste. After I'd tipped I was checking the wagon for any defects when I spotted a lone pea balanced on the lifts.
I said "hey look, an escaPEA"
No one near me but it didn't half make me laugh for a good hour or so!
Edit: I can't believe how much this has blown up. Thank you everyone I've had a blast reading through the replies 😂
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