It is super cool that in hosting Koolasuchus some 60 million years after every other large amphibian had died out, Australia was something like Arthur Conan Doyle's Lost World.

NGL Koolasuchus is one of my favorite creatures from that era

There's an assumption being made that their extinction before the kt boundary was because they're outcompeted by the crocodiles, but crocodilians can't handle winters as well as the amphibians it appears. Koolasuchus is from the Wonthaggi Formation of southeast Australia which during its time would have been well below the Antarctic circle. Traditional reptiles are entirely absent there, no lizards, turtles, snakes, or crocodiles. A similar absence can be seen in other paleo-polar environments (e.g. Prince Creek Formation) and even some modern ones. The Alaskan wood frog can be found throughout Alaska and Canada, where many other reptiles cannot, notably crocodilians. Also, the demise of temnospondyls outside polar regions had much more to do with climatic factors; crocodilians weren't aquatic predators during the Late Triassic, so were never going to compete with large aquatic temnospondyls at that point.

@brastionskywarrior6951

2 ай бұрын

if only they had survived in the north. The volga or danube could be teeming with these beasts today.

@prasetyodwikuncorojati2434

2 ай бұрын

@@brastionskywarrior6951 some people actually believe if modern amphibians are descend from temnospondly so koolasuchus technically not the last one thought (although this still controversial since the origin of frog, salamander, and caecilian still very much a mystery with very few fossil that show their ancestor form)

@JohnSmith-ik8nt

Ай бұрын

Why does everyone assume antarctica was the southern pole back then

in terms of its place in the food web I'd suspect that Koolasuchus would be similar to the giant salamanders we have today in Japan and china and the Goonch catfish in India, in that they would eat anything and everything that got to close to it in the water, taking a crack at a dinosaur is something it'd do just to see if it could eat them, another thing that crossed my mind is what are the odds that Koolasuchus had poison ? something that large being slow would want an extra form of insurance during that time period, we just have no way of testing that suspicion unfortunately.

Yay! One of the amphibians I suggested got picked! Also first.

Nice grew up with walking with dinosaurs so cool seeing koolasuchus getting its own video and as a suggestion how about something related to nothosaurus???

I reckon Koolasuchus would have behaved very similarly to today's Chinese and Japanese Giant Salamanders, but dialled up to eleven.

Koolasuchus and the Gangasaurids

is it just me or does the Koolasuchus looks like a Giant salamander on steroids.

crazy how the jurassic world the game version is actually decently accurate

i think it's more like the snapping turtles of today

I think Koolasuchus was eating what it family was always eating before the time of the dinosaurs...medium to big fish... via ambush/ suction feeding hunting... a tried and tested strategy....great for slow metabolism animals...

wow! Fantastic rendition of a tale about a relic from the of age of amphibian supremacy! Koolasuchus!

yes

It would aid your explanation to add that **the temnospondyli, such as koolasuchus, had an especially hard time moving on land, AS THEY WERE THE MOST PRIMITIVE AMPHIBIANS TO HAVE EVER EVOLVED.** In addition, it is NOT ACCURATE to say that during the Triassic, Jurassic, or Cretaceous Periods (the so-called Age of Dinosaurs), koolasuchus was “the most dangerous freshwater predator,” as the very reason the giant temnospondyli such as koolasuchus went extinct eventually was fierce competition from ever larger and **more versatile** crocodilomorphs of all shapes and sizes. In fact, by the Cretaceous, this competition was so intense that the koolasuchus was a somewhat rare animal, being limited to existence in small, out of the way, remote fresh bodies of water where there were no crocodilomorphs yet.

@primalfiregodzilla5052

2 ай бұрын

That is helpful

@MrMalvolio29

2 ай бұрын

@@primalfiregodzilla5052 I truly, sincerely *meant* to be helpful, as paleontology is an avocation for which I have a passion, and I *generally* really enjoy this channel. I simply think that everything can be improved, as * NONE* of us is “perfect,” not even grammar nerds such as I! LOL

@bkjeong4302

2 ай бұрын

It’s questionable if temnospondyls were ever outcompeted by crocodylomorphs; they had been declinining ever since the Great Dying, before crocodylomorphs even became semiaquatic. Their downfall likely has a lot more to do with their dependence on water for reproduction.

@MrMalvolio29

2 ай бұрын

@@mhdfrb9971 the crocodilomorphs outcompeted the great, primeval temnospondyli for the best hunting and living niches.

@MrMalvolio29

2 ай бұрын

@@bkjeong4302 excellent point. Thank you for nuancing what I said. When a species goes extinct, almost always a complex interplay of factors is at work.

All those various pre-historic Amphibians save just a few, had some of the most Robust Skeletons of any of their Peers. Those baby's are Solid, specially the Skull. I'm somewhat glad these are extinct, otherwise I can see problems at the Ole' Fish'n Hole, already get enough grief from Gators and big Turtles. - Ever been faced with the prospect that in Approx. a few minutes you will have to do battle with a Gator because it Really Liked the Fish Bait you had on and now thin SS steel big game fish cable is hanging out of a Gators mouth, running back to just behind that glottus organ in it's back throat, connected to a Large Circle hook which has hooked itself into the insides several different chunks of Gator Head Meat, This is going to be a 2-12 pack project, Gator will be a little sore and greatly pissed off but will make it OK, everyone now count all Fingers,Toes & other bodily extremities BEFORE we start

will you cover Leaellynasura

*its line

You misspelled the title! It’s Koolasuchus Sorry to be that guy, but like y’know

@raptorrex3954

2 ай бұрын

Whoops...

@Dinoramascuplts-Tyrex

2 ай бұрын

@@raptorrex3954 you want me to delete my comments? For image sake or just leave em as history?

@raptorrex3954

2 ай бұрын

@@Dinoramascuplts-Tyrex You can leave them, its fine mate.

@Dinoramascuplts-Tyrex

2 ай бұрын

@@raptorrex3954 Alr

“IT’S” is an informal CONTRACTION meaning “it is.” In your opening title, you need the POSSESSIVE PRONOMINAL FORM of the indefinite pronoun “it,” which is spelled “ITS” (no apostrophe or any other diacritical marking whatsoever), simply I-T-S. Such aspects of your presentation are *QUITE FAR FROM TRIVIAL OR “NITPICKING.* They tell your *INFORMED, EDUCATED* readers whether or not to consider you a LITERATE “paleontological AUTHORITY.” I LOVE your channel, enjoy it, and just want it to be as good as it can be. Overlooking basic grammar and mechanics makes you look careless, which I *know* you are not. It would be worth it to engage the services of a literate copy editor. Incidentally, by the age of the dinosaurs, temnospondyli such as koolasuchus were not just “ancient,” as nearly *all* the other great temnospondyli had long since gone extinct, and the few species that *had* survived the End-Permian “Great Dying” to last until the Late Cretaceous (such as koolasuchus) had been around since LONG before the dinosaurs, having first evolved during the *Carboniferous* (the Great Age of Giant Arthropods) 358.9 million years ago. It would be more proper to refer to them as “primordial,” “primeval,” or even “archaic,” as they were the *first primitive amphibians* to have evolved and occasionally ventured onto dry land. Cheers!