A illustration of the canine shear-bite of Machairodus aphanistus.
Based on its relatively primitive sabre-tooth adaptations, this form of mixed shear-bite with both neck and jaw action driving the canines likely gave way to more specialised shear-bites in other machairodonts.
Attention paleoartists: follow the Turing pattern when making spotted/striped patterns for your animals! Spots and stripes are never just randomly organised: there is a sort of flow, and it's always various branching bands. It's in reptiles, fish, mammals - it's everywhere!
An update: treat spotted patterns like polygonal mosaics. These should comprise four-six sided shapes (and, rarely, seven-sided) - see the images of a jaguar pattern attached as an example.
The original redlining I did connected polygonal "tiles" through conjoining faces.
Attention paleoartists: follow the Turing pattern when making spotted/striped patterns for your animals! Spots and stripes are never just randomly organised: there is a sort of flow, and it's always various branching bands. It's in reptiles, fish, mammals - it's everywhere!
@krystalwolfy
@Yokomation
@womenshouldstfu
I find it funny when people try to use biology to justify prejudicial garbage but upon closer inspection discover that, actually, biology shows traits being plastic, and existing on spectra, not in rigid categories. Science fundamentally refutes transphobia and homophobia lol
Regardless of everybody’s opinions on certain big movie franchises, I think we can all agree that using AI to generate “paleoart” is utterly wrong.
It’s a massive, massive shame to see the relationship between scientists and artists disrespected in this way.
Platysternon megacephalum (or big headed turtle) is a very odd-shaped turtle with a huge head and a long tail that are almost the same size as its body.
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[📹 47ruacanhphongthuybmt: ]
Also note the Turing pattern applies across the WHOLE body. Sometimes it is expressed in certain ways that look different or more well organised (eg banded tails), but these are still expressions of the same pattern: simply at subtly different scales, densities and organisations.
Don’t reconstruct gorgonopsid feet like chunky lizard feet!!
Karoopes, an ichnotaxon attributed to gorgonopsids, shows:
- Slightly flat toes with distal pads and palmar pads
- Four digits bore most of their weight
- Digitigrady
- Widely splayed, inward-turned feet
@Florida_Vern
@da_salamander
@latestinspace
To add onto this, there aren’t aliens. That we know of, yet. They found organic matter; organic molecules; the precursors to life. Not life itself.
Ok if y'all concerned about the accuracy of the raptor which is *obviously* meant to cater to the public in order to bring public attention to the issue at hand, y'all got your priorities totally mixed.
What's more, it reflects pretty badly on the paleontological community
The sabertooth shear bite as a class 1 lever shown with Dinofelis animated by yours truly.
Here the temporomandibular joint acts as a fulcrum, the pushing force comes from dorsal extension of the forelimbs and the resistance is at the canines.
Reference:
Just a reminder to those who are confused: paleontology is a science, not a fandom.
In science, you do NOT spew poorly thought out personal opinions and expect “agree to disagree” to be the outcome.
A scale of pig:
- Large pig
- Large hellpig, with an exclusive diet of creatine
- Huge hellpig, with an exclusive diet of creatine, on tren
- Absolute juggernaut of a hellpig, with an exclusive diet of creatine, on tren, that spent 17 years training in a cave, coached by batman
Genuinely curious - due to their cumbersome shells, has kin selection perhaps worked on horseshoe crabs in a way that this is an innate response to another crab being stuck like this?
Opinion: the Jurassic *World* franchise.. just kind of sucks. Overall.
Between attempted DMCA take-downs over and attempted copyrighting of scientific terminology, and claims that they 'stick by the science' (paraphrasing here), the whole thing under Universal is just no good.
Only very roughly scaled (90cm basocondylar length for Paraentelodon, 85cm basicondylar length for Hippopotamus gorgops) but this is testament to how gigantic this entelodont was
@xvMRTxv
@ResDolph
General rule of thumb: if they feel the need to defend something without prompting, they’ve already got negative thoughts about it in their head
@BrionnePerson
@krystalwolfy
@Yokomation
@womenshouldstfu
Basically, biology supports the idea that gender and sexuality exist on spectrums. *Nothing* alive in the world exists in neat categories. Not sex, sexuality, gender - not even species, not even life itself. You'd have to breach the scientific process to argue otherwise.
Funnily enough the most frightening thing about Don’t Look Up wasn’t the fact that a world-ending asteroid could legitimately come hurtling towards Earth at any time, it was how close to reality it depicted the reactions of governments and media to life-threatening scenarios
Megaloceros giganteus
I decided to go with a colour gradient-shift rather than a body stripe in this interpretation. Despite bold patterns/stripes in other analogous ruminants, large blocks of colour seem to be typical for deer, which is the main reason for my interpretation.
This is gatekeeping at its finest.
Don’t do this. It’s a disgusting attitude, and making fun of someone for not being able to afford something is absolutely despicable. People like this, and I know of a few personally, ruin paleontology.
They actively harm sci-comm.
If you don’t like creepy crawlies, look away now — here’s a closer look at a right whale callosity: and one of it’s resident species, the whale louse Cyamus ovalis. Still nuts to me that they’re white in colour due to lice and barnacles
Inostrancevia alexandri, with reference from the skeletal by
@DanPalaeon1
.
Performed a volumetric weight estimate from this - comes out at 410kgs - quite massive for something from the Permian!
This fr their model? Like Andrewsarchus were *related* to hippos, not *like* them - their diets were totally different, and to assume Andrewsarchus were more like hippos than the more closely related entelodonts is premature, especially when hippos are so derived postcranially.
Again: warning everyone here, this isn’t a given, and a trend in enamel/gingival margin of modern carnivores *with small teeth* does not make a good answer for the enamel/gingival margin of Smilodon.
I keep saying to people: this isn’t that deep. Animals do this, intimidation is a big thing - most people wouldn’t even bother a rat if it was pissed off enough
Just putting this out there for people - do not support this account, it is illegally impersonating the BBC, taking from other peoples’ efforts for its own gain
@QuokkaSmiles87
Nope - w don’t have any direct evidence for exposed or covered canines, but logical inference would dictate that’s not the case. Especially because extensive, mastiff-like lips tend to leave slightly hummocky textures on the bone (like in mastiffs), which Smilodon lacks.
Inostrancevia alexandri, full body.
This is based off of a small-headed scaling (according to real specimens) by
@DanPalaeon1
.
Please check out Dan's work, his meticulous attention to detail is outstanding and he somehow makes something better every time!
TIL there are LIVING members of Mesothelae: the Liphiistidae - which is insane, considering Mesothelae dates back to the **Carboniferous**.
These guys are so primitive they *still* have segments on their abdomens
(photos by albertkang and dhfischer respectively on iNaturalist)
Multi-tonne prehistoric animals (especially carnivores) likely weren’t very extravagant & probably didn’t have huge display features.
This is because of the probable metabolic costs of developing & maintaining bright, stark pigmentation & display features at large body sizes.
Rare this happens but I’m genuinely confuzzled here. What the hell is this? It’s not any kind of cetacean, nor a pinniped, nor a lutrine, sirenian (and it doesn’t match up with anything prehistoric either for the conspiracists among you). Thinking it’s a hoax?
Calling it now - the image on the right looks so authentic it’s gonna spread like wildfire and people are gonna think it’s a real historical photo of a moa
Got an email for my lectures this term - yeah guys DON’T use these totally free resources to access scientific papers, it’s very ILLEGAL and you SHOULDN’T do it
It’s funny how if you tell people you want to be a footballer it’s all support and positivity but if you say you want to be a palaeontologist the validity of your career is suddenly put into question
Homotherium/Smilodon comparison
In a way, I think Homotherium is actually more derived.
Sure, Smilodon has those insane sabers, and adaptations to use them, but Homotherium had this insanely blown up rostrum, housing crazy knife-like incisors as well as (albeit small) sabers.