Post AZKoRUtlsS7W1v14bI by gay_ornithischians@sauropods.win
(DIR) More posts by gay_ornithischians@sauropods.win
(DIR) Post #AZJmDwGQwT8dmY405A by markwitton@sauropods.win
2023-09-01T08:46:08Z
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For #FossilFriday, speculative Cenozoic #tyrannosaur art at #Patreon: a species adapted for grasslands (the "stilt tyrant") and high-latitude, cold environments ("tundra tyrant"). Fluffy as it is, please don't stroke the latter. Hi-res and discussion at https://www.patreon.com/posts/children-of-re-x-88561232#dinosaurs #paleoart #paleontology #speczoo
(DIR) Post #AZJmbiaFSOoUIqfdbs by grb090423@mastodon.social
2023-09-01T08:50:23Z
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@markwitton The duck-like one about to eat the rabbit is going to haunt my nightmares!
(DIR) Post #AZJn9iqQzcIUxUSKVE by markwitton@sauropods.win
2023-09-01T08:56:35Z
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@grb090423 It's not meant to be very big! Maybe the size of a maned wolf? I'm sure you'd be fine. They might even make good pets.
(DIR) Post #AZJnxbDNdPrdm2yJXs by grb090423@mastodon.social
2023-09-01T09:05:35Z
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@markwittonOh, I didn't realise that. Yes, I can picture myself taking one for a walk in the local park.🦆🦖🙀😂
(DIR) Post #AZJpiffB0txd8Pyzfk by mk_rexx@metalhead.club
2023-09-01T09:25:16Z
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@markwitton Imma pet it
(DIR) Post #AZK1nPX7bueq0TF36e by CFoix@sciencemastodon.com
2023-09-01T11:40:37Z
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@markwitton @grb090423 Would need to be a very basal tyrannosaur then, at that size
(DIR) Post #AZK6L3hrfSrjyUZCBU by markwitton@sauropods.win
2023-09-01T12:31:31Z
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@CFoix @grb090423 I don't think that's the case. It's not like animal body size can only increase over time.
(DIR) Post #AZK6ulnPjgpCqqBtDM by CFoix@sciencemastodon.com
2023-09-01T12:37:18Z
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@markwitton @grb090423 Aye, tyrannosaurs got bigger over time, though. In quite a linear way. And surely smaller theropod guilds, the paravians, monopolised smaller sized niches, and excluded the less intelligent tyrannosaurids.
(DIR) Post #AZKQQX7fiyghjrWeau by markwitton@sauropods.win
2023-09-01T16:16:37Z
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@CFoix @grb090423 A body size increase over a period of evolutionary history doesn't dictate one evolutionary destiny, though. It's not a given that tyrannosaurs would only get bigger post-Mesozoic, they surely would adapt to whatever conditions the Cenozoic threw at them, becoming smaller if necessary.
(DIR) Post #AZKRWGX2QCwzyUghbE by CFoix@sciencemastodon.com
2023-09-01T16:28:50Z
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@markwitton @grb090423 Well in theory. But as you know, the largest fauna is among the most susceptible to extinctions, instead of downsizing to compete with smaller bodied competitors. This although island dwarfism, proves giant land vertebrates can shrink according to resources.
(DIR) Post #AZKoRUtlsS7W1v14bI by gay_ornithischians@sauropods.win
2023-09-01T20:45:42Z
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@markwitton does the big fluffer have arms?
(DIR) Post #AZLGLaXcmXz8Vfd0Km by Aiden@sauropods.win
2023-09-02T01:58:18Z
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@markwitton Did the stilt tyrant evolve some level of neoteny? Also, nice detail of the reptilian hip-hump on the tundra tyrant. :)
(DIR) Post #AZMI7eaXKhLK4cQvVA by markwitton@sauropods.win
2023-09-02T13:52:59Z
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@Aiden Yes - I guess that's the case for a lot of evolution. But in this instance I was imagining that it comes from a lineage that matured early and didn't grow to enormous sizes.
(DIR) Post #AZMIZYpwJJbELMweh6 by markwitton@sauropods.win
2023-09-02T13:58:01Z
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@gay_ornithischians Nope, they've been lost as they kept getting cold. Mittens hadn't been invented yet, so adaptive options were limited.