# Talk:Puertasaurus

Autochthony writes:
Plainly an enigma, given the lack of material available.  I lack the expertise to criticize, and deny the 'denial by astonishment' form of critiscism. 
Can we reasonably expect any more material - from, frankly, a very long time ago?
The largest land animals today [admittedly after 10,000 years of increasingly effective hunting  by Home sapiens] are African Elephants, which rarely excee ten tonnes/tons.
What conditione - except Homo - may have been different then, allowing a weight of something like a hundred tons/tonnes?
THE LARGEST LAND CREATURE OF THE POST-cRETACEOUS WORLD APPEARS TO HAVE BEEN BALUCHITHERIUM -  possibly 20 to 30 tonnes/toms.
Help me ort this in my head.
Autochthony wrote at 2255 Z, 16 May 2012.  86.143.233.70 (talk) 22:54, 16 May 2012 (UTC)

Strange comment. Be that as it may, the TP is not a forum to discuss the subject of the article. If you need information to show that humans were not responsible for the demise of any large mammal species - rhinos/elephants - I would suggest exploring the climatic changes for those extinct species to get a grip on why they went extinct. The material on Wiki on the large sauropods and their large theropod predators are readily available on their individual articles, along with the atmospheric conditions that allowed for such large animals to develop. 50.111.22.143 (talk) 17:36, 31 January 2019 (UTC)

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There would have been large allosaurid predators around these guys - are any known from the area and time period? If they have not yet been formally described, mention should be made that 'teeth have been found ...' yada-yada in the article.50.111.22.143 (talk) 17:30, 31 January 2019 (UTC)

See the paleoecology section, as usual. FunkMonk (talk) 17:32, 31 January 2019 (UTC)
Well, naturally, I already did!  :-)  Neither of those animals would have been able to prey on juveniles once they got beyond a specific size - you know that very well. Are any large "Giganotosuarus" theropods from that area/timeframe known? 50.111.22.143 (talk) 17:41, 31 January 2019 (UTC)
Pinging the writer Slate Weasel, but since such animals are not mentioned, it seems not. That doesn't mean they didn't exist, of course, they just need to be found. FunkMonk (talk) 17:47, 31 January 2019 (UTC)
Well there HAD to have been a large predator around at the time, as has always been found around the great sauropods. It's just a matter for them to have been/to be discovered, fossil-record willing ... 50.111.22.143 (talk) 17:49, 31 January 2019 (UTC)
I've gone through the information pretty thoroughly - due to its naming controversy, there's no other way to go over this formation :). The Cerro Fortaleza Formation does not preserve any (unless you include Orkoraptor) carcharodontosaurs at all, to my best knowledge. In fact, if the Campanian date is correct, carcharodontosaurids would have been extinct. Their absence is interesting, but I don't think that anyone's commented on it in the literature before. If I find anything on it I'll post it here. --Slate Weasel (talk | contribs) 17:52, 31 January 2019 (UTC)
It might be worth it to add that "HAD" is a bit strong. Consider Giganotosaurus, the largest carcharodontosaurid currently known. The largest sauropod in its formation, Andesaurus was not more than 20 meters long. --Slate Weasel (talk | contribs) 01:24, 4 February 2019 (UTC)

"Its size is difficult to estimate due of the scarcity of its remains, but modern estimates place it around 30 meters (98 feet) long and 50 metric tons (55 short tons) in mass."
It was discovered in 2001. 18 years isn't enough time to differentiate an older and a modern era. It would be better to use the term current. --The Vital One (talk) 00:01, 1 February 2019 (UTC)

 Done --Slate Weasel (talk | contribs) 01:25, 4 February 2019 (UTC)