Anteosaurus: the largest Paleozoic land predator, and likely the largest predatory terrestrial synapsid
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πŸ‘€︎ u/Iamnotburgerking
πŸ“…︎ Dec 26 2021
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Lisowicia bojani represents the pinnacle of non-mammalian synapsid gigantism, being the biggest species of dicynodont known from the late triassic of Poland. Based on the largest specimen, it could have grown around 5 m in length and weigh around 6 tons.
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πŸ‘€︎ u/Pardusco
πŸ“…︎ Oct 10 2021
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Step 1: Synapsids control Earth, archosaurs are driven underground. Step 2: Archosaurs take over, synapsids are driven underground. Step 3 (you are here) Synapsids become sapient, archosaurs are driven underground. Step 4: Archosaurs become sapient, synapsids are driven underground
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πŸ‘€︎ u/knightfluttershy
πŸ“…︎ Dec 15 2021
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Mass extinction Episode VI: Revenge of the synapsids.
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πŸ‘€︎ u/ComradeHregly
πŸ“…︎ Dec 05 2021
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Why did bipedal dinosaurs never evolve flexible hands, but quadripedal synapsids did?

With being bipedal, a pair of limbs is free to evolve further specializations towards grasping instead of walking. Yet for 150+ million years, no dinosaurs or dinosauromorph which was bipedal evolved hands that could pronate or have opposable thumbs.

There was even a pterosaur related to darwinopterus that evolved opposable thumbs.

However synapsids(primates and carnivorous especially) have evolved hands multiple times that can pronate and hold objects at least.

Why is that?

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πŸ‘€︎ u/alex8762
πŸ“…︎ Dec 22 2021
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The first time a lot of us were introduced to the Purlovia was Ark, right? When you think "Purlovia" some may think Carnivorous burrowing synapsid, right? Well, it's mostly wrong. It is a synapsid but it wasn't a carnivore it was a herbivorous critter of late Permian Russia. maybe a borrower idk. reddit.com/gallery/rwhbqo
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πŸ“…︎ Jan 05
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A normal "synapsid" on a "synapsid" ruled land. (Info in comments.)
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πŸ‘€︎ u/not_ur_uncle
πŸ“…︎ Dec 11 2021
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An early Triassic synapsid would probably be scared of our appearance.
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πŸ‘€︎ u/not_ur_uncle
πŸ“…︎ Jan 24
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Why are Synapsids (especially Mammals) more heterodont and extremely variable (regarding their teeth) between species unlike Reptiles?

I know "more heterodont" is a misnomer, as you are either heterodont or homodont. But I think the wording illustrates the point of my question.

Synapsids, and especially Mammals are heterodont, they have clearly differentiated teeth: usually incisors, canines, premolars and molars. And that trend seems to have started with early Synapsids. However, what bugs me more is the extreme diversity of teeth that we find in them. Look at Mammals: we have rodents with square incisors that keep growing, elephants with also big tusks made from incisors, walrus with big tusks but made from canines, a lot of predators like cats and dogs with big fangs made from canines, even herbivores like the water deer with canine fangs, whatever the hell hippopothamus teeth are, lots of ruminants with grinding molars, Southamerican vampires with sharp fangs made out of incisors... you get my idea.

But when you go to Reptiles, sure there are a few Reptiles that really differentiated their teeth like some snake's fangs. Or Reptiles that don't possess teeth and have beaks instead like turtles and birds. I'm using the term "Reptiles" as monophyletic, that's why I'm including birds (assume I'm saying Diapsids instead of Reptiles). But even before the lineage that gave birds lost their teeth, those theropod dinosaurs were pretty homodont too. In any case, most Reptiles are homodont, they don't usually have differentiated teeth and they tend to have the same function.

Now I know things mutate randomly and if they are not strictly necessary, they are not necessarily favored by natural selection, therefore Reptiles are doing good enough with their low variety of teeth and I get that. However, why Mammals display so much variation between species unlike Reptiles in this particular case of teeth? Both Mammals and Reptiles have had to adapt to a lot of niches throughout the history of life, both have a lot of biodiversity and had to morphologically adapt a lot as an answer to their respective selective pressures, they all have evolved a lot. But when it comes to the variety of teeth between species within the same class, it seems it's mostly only Mammals that had experienced such variability. It's not just the heterodont condition within a single mouth what draws my attention, but that, in Mammals, when you go from species to species, there's a world of difference between them, like the examples I mentioned above (you go from rodents, to elephants, to bats, to primates, and it's all extremel

... keep reading on reddit ➑

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πŸ‘€︎ u/rochitablack
πŸ“…︎ Dec 09 2021
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Why did Sauropsids become dominant animals in Triassic, even though there still were more progressive Synapsids after Permian extinction?
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πŸ‘€︎ u/Karandax
πŸ“…︎ Jan 16
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Not sure if synapsids count, but I thought you might enjoy this Cotylorhynchus hancocki reconstruction by @Syn_JFD! twitter.com/Syn_JFD/statu…
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πŸ‘€︎ u/212_1
πŸ“…︎ Jan 10
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Fossils and reconstructions of Tiarajudens eccentricus, a anomodont synapsid from the Middle Permian of Brazil. reddit.com/gallery/q47o5g
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πŸ‘€︎ u/ImHalfCentaur1
πŸ“…︎ Oct 08 2021
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Synapsid convergently evolved with thyreophorans.
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πŸ‘€︎ u/SnooDoubts3508
πŸ“…︎ Dec 11 2021
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Wikipedia photo for Synapsids
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πŸ“…︎ Nov 17 2021
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A Carboniferous synapsid with caniniform teeth and a reappraisal of mandibular size-shape heterodonty in the origin of mammals royalsocietypublishing.or…
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πŸ‘€︎ u/Defiant_Race_7544
πŸ“…︎ Dec 21 2021
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Lisowicia bojani graze in a swamp in late Triassic Poland as a Coelophysoid dinosaur walks by. Lisowicia was the largest of the dicynodonts and the largest non-mammalian synapsid, about the size of modern elephants.
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πŸ“…︎ Sep 03 2021
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If you google "Synapsids" and go to the Wikipedia page, this legitimately pops up, a picture of Brezhnev
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πŸ‘€︎ u/Battleship1239
πŸ“…︎ Dec 20 2021
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Fossils and reconstructions of Tiarajudens eccentricus, a anomodont synapsid from the Middle Permian of Brazil. reddit.com/gallery/q47ovt
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πŸ‘€︎ u/ImHalfCentaur1
πŸ“…︎ Oct 08 2021
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Extant synapsids 10 minutes after K-PG
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πŸ‘€︎ u/pricklypearanoid
πŸ“…︎ Nov 04 2021
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Did the sailed synapsids have long genitals?

I know this a bit of a weird/stupid question but they would probably need some long slongs unless they mated tail to tail. Anyways, what are your thoughts on this?

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πŸ‘€︎ u/not_ur_uncle
πŸ“…︎ Nov 23 2021
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A Staurikosaurus holds on to his synapsid meal.
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πŸ‘€︎ u/FALguy123
πŸ“…︎ Sep 15 2021
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Dimetrodon is an extinct synapsid which lived approximately 295 million to 272 million years ago during the Permian Period. The enormous fin on the back of this animal was used to regulate temperature. youtu.be/h1CRfkO0Bvo
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πŸ‘€︎ u/reddituser870870
πŸ“…︎ Oct 04 2021
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Spectember - Synapsid-dominated alt timeline
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πŸ‘€︎ u/yee_qi
πŸ“…︎ Sep 03 2021
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I'm glad furries haven't figured out how to use early Cenozoic mammals and non-mammalian synapsids as their fursonas...

Also don't worry about them getting ideas, they probably can't read it unless it's in owo...

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πŸ‘€︎ u/not_ur_uncle
πŸ“…︎ Sep 30 2021
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Synapsid appreciation post
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πŸ‘€︎ u/burntphantrash
πŸ“…︎ Oct 18 2021
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TIL Brezhnev was a synapsid. Which one of you did this? reddit.com/gallery/r28dvg
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πŸ‘€︎ u/oliveiramg
πŸ“…︎ Nov 25 2021
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A subreddit for everyone’s favourite very large synapsid
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πŸ‘€︎ u/burntphantrash
πŸ“…︎ Oct 01 2021
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Why were there no flying ancient Synapsids?

Like the were warm blooded right?

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πŸ‘€︎ u/grapp
πŸ“…︎ Sep 27 2021
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Spectember Day 2: Post-Triassic Synapsid World reddit.com/gallery/pgblce
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πŸ‘€︎ u/BobsicleG
πŸ“…︎ Sep 02 2021
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What would the americas look like if synapsids never existed?
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πŸ‘€︎ u/mcmultra75
πŸ“…︎ Oct 25 2021
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A Synapsid-like creature filling the niche of a bear
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πŸ“…︎ Aug 24 2021
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What is the most basal amniote fossil known that lived before the diapsid-synapsid split?
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πŸ‘€︎ u/GeneticJail
πŸ“…︎ Oct 16 2021
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Happy synapsid week! Unfortunately I don’t think I’ll be able to finish this before the end of June so I might as well just post the WIP
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πŸ‘€︎ u/thesesametree
πŸ“…︎ Jun 25 2021
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Spectember 2021 Day 2 (late) - Alternate Triassic with Synapsids
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πŸ‘€︎ u/RaksharAlpha
πŸ“…︎ Sep 07 2021
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Absolute Unit of a synapsid
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πŸ‘€︎ u/FlamingTrashcans
πŸ“…︎ Aug 22 2020
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Who the fuck would say synapsids aren’t reptiles
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πŸ‘€︎ u/Bigmikail2009
πŸ“…︎ Mar 29 2021
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Two very distant relatives of mammals. The small-headed Cotylorhynchus romeri, a caseid synapsid from Early Permian North America, and the large-headed Anteosaurus magnificus (bottom) a dinocephalian from Late Permian Africa. Art by Gabriel Ugueto.
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πŸ‘€︎ u/ImHalfCentaur1
πŸ“…︎ Jun 20 2021
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How to evolve: β€˜Synapsid-like’ Squamates?(endothermy,movements,flexibility,fur or ”feathers”,etc)

so….. what do you think if you evolved your own species of future β€˜warm blooded’ reptiles (depending in species).

https://i.imgflip.com/5pyy61.jpg

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πŸ‘€︎ u/J150-Gz
πŸ“…︎ Oct 11 2021
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Synapsid/Archosaurs Meme
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πŸ‘€︎ u/Geoconyxdiablus
πŸ“…︎ Apr 07 2021
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Why did anapsids go extinct while synapsids and diapsids survived?

I might be wrong and turtles are anapsids but as far as my knowledge goes, anapsids went extinct during the Permian-Triassic mass extinction.

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πŸ‘€︎ u/not_ur_uncle
πŸ“…︎ Sep 11 2021
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Why were mammals the only synapsids to survive to the Mesozoic/Cenozoic?
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πŸ“…︎ Jul 03 2021
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Did the Dimetrodon or other early synapsids have hair?
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πŸ‘€︎ u/not_ur_uncle
πŸ“…︎ Jun 08 2021
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Hello fellow Synapsids

How do you feel about feathered Sauropsids.

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πŸ“…︎ Aug 20 2021
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Synapsid gang rise up
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πŸ‘€︎ u/Prince_of_Old
πŸ“…︎ Oct 01 2020
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Did early synapsids have ears?
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πŸ‘€︎ u/not_ur_uncle
πŸ“…︎ Aug 08 2021
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