This is really fascinating. It actually dovetails with and supports Leder at al's research suggesting that CH of a single anterior tooth is a poor way to measure Megalodon size and significantly underestimates its length. Here, CH equations suggested a shark of only 13.87 meters, but when doing the body sizing using the computational modeling and incorporating partial vertebral column and the teeth, it is 15.93 M. The crown height of the A2 tooth used was only 114.45 mm, 4.51 inches. That is nowhere near the largest Meg crown heights. Yet this the shark is still predicted to be 15.93 M long. I think this study, combined with Leder's upcoming one will demonstrate that Megalodons could comfortably exceed 18 M.
This is really fascinating. It actually dovetails with and supports Leder at al's research suggesting that CH of a single anterior tooth is a poor way to measure Megalodon size and significantly underestimates its length. Here, CH equations suggested a shark of only 13.87 meters, but when doing the body sizing using the computational modeling and incorporating partial vertebral column and the teeth, it is 15.93 M. The crown height of the A2 tooth used was only 114.45 mm, 4.51 inches. That is nowhere near the largest Meg crown heights. Yet this the shark is still predicted to be 15.93 M long. I think this study, combined with Leder's upcoming one will demonstrate that Megalodons could comfortably exceed 18 M.
I think we just have to continue to be patient. I can tell you the final publication it will be a very interesting and different analysis as to the size potential of Megalodon, but I can't share any more details than that.
Interesting, can you scale to the proposed size of the Yorktown meg (~370 cm) ?
Here you go.
I decided to do some slight changes to both btw.
Most reconstructions of the Livyatan I’ve seen had the jaw gape sitting at a 45 or 50 degree angle. May be inaccurate or not though.
Particularly this one:
Just wondering Sam1, how did you find the 75 degree jaw gape for the Livyatan and why does it differ with the 45 degree reconstruction model most people show the livyatan to have.
More and more accolades and recognition from shark researchers for the Perez, Leder, Badaut study on associated dentitions and its revised estimates of 65 feet/20 m for maximum size Megalodons.
More and more accolades and recognition from shark researchers for the Perez, Leder, Badaut study on associated dentitions and its revised estimates of 65 feet/20 m for maximum size Megalodons.
Infinity Blade: I'm not sure. Freshwater plants certainly grow from the underwater sediment upwards, but I don't know if they support the same kinds of diverse ecosystems seagrass meadows do.
Mar 25, 2022 21:40:57 GMT 5
Supercommunist: Is there a freshwater equivalent of seagrass meadows?
Mar 24, 2022 22:17:28 GMT 5
hypezephyr: IN DROWN, WATER WILL CHIMPS
May 27, 2021 22:33:21 GMT 5
kekistani: IN WATER, CHIMPS WILL DROWN.
Mar 18, 2021 11:18:01 GMT 5
roninwolf1981: I wonder why is it that the greater apes would drown if they fell into water from the trees?
Mar 16, 2021 22:25:11 GMT 5
kekistani: The virgin and bluepilled Mokele Mbembe versus the CHAD and REDPILLED Water Elephant
Mar 4, 2021 22:31:57 GMT 5
Ceratodromeus: Considering even the most terrestrially inclined extant crocodilians are also very good swimmers, i see zero reason for sebechids to not be.
Feb 25, 2021 21:09:18 GMT 5
Infinity Blade: Virtually every terrestrial animal can swim if it needs to. I don't know about tail flexibility, though.
Feb 21, 2021 22:17:14 GMT 5
jhg: Probably not. Terrestrial crocodiles stayed on land for a good reason.
Feb 21, 2021 11:17:16 GMT 5
Supercommunist: Do you think sebecids and other crocodile-like terrestrial animals were good swimmers and if so, would they have used their tails to swim or would they have been too stiff?
Feb 21, 2021 6:16:35 GMT 5
Infinity Blade: Welcome to World of Animals.
Jan 31, 2021 5:06:24 GMT 5
Supercommunist: Any idea how well pterosaurs would have fared in extremely cold climates? I can't help but assume that their wing membranes would be more vunerable to frostbite than a bird's wing.
Jan 23, 2021 9:38:14 GMT 5
Supercommunist: Turns out there is a study: www.nature.com/articles/s41598-017-08812-2 fresh bones provided 63% more energy than dry bones but what I find intresting is that dry bones that are between 3-12 months old is still a viable food source for them.
Jan 4, 2021 9:18:34 GMT 5
Infinity Blade: I think they might get calcium from the bones, but those might be harder to digest as well. For bone marrow, I'd say however long it's around before it completely decays.
Jan 4, 2021 6:23:06 GMT 5
Supercommunist: Question: I know a bearded vulture's diet consists mainly of bone marrow, but are they able to derive nutritional value from old bones or do the bones have to be relatively fresh?
Jan 4, 2021 2:59:21 GMT 5
Infinity Blade: Happy New Year mudda fuggas.
Jan 1, 2021 10:02:06 GMT 5
