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Post by Grey on Oct 30, 2014 22:45:54 GMT 5
Few questions for update.
1) Since Spinosaurus has been revised at 6-7 tonnes, what is as now the heaviest theropod that we know of, even by a small margin ?
2) Among these giants which one is the most massively built ?
3) Is the estimate of 195 cm for the skull of the Giganotosaurus paratype definitely obsolete and oversized ?
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gigadino96
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Post by gigadino96 on Oct 31, 2014 1:01:32 GMT 5
Few questions for update. 1) Since Spinosaurus has been revised at 6-7 tonnes, what is as now the heaviest theropod that we know of, even by a small margin ? 2) Among these giants which one is the most massively built ? 3) Is the estimate of 195 cm for the skull of the Giganotosaurus paratype definitely obsolete and oversized ? The heaviest Theropod know now is either T.rex or a giant Carcharodontosaurid, as they're in the same range (the fact that Sue outweights SMG din-1, MUPCv-ch1 and, maybe, even MUPCv-95, doesn't mean that T.rex is larger: both Giganotosaurus specimens and SMG din-1 outweight a lot of T.rex specimens) |
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Dakotaraptor
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Post by Dakotaraptor on Oct 31, 2014 1:08:23 GMT 5
1. Either Mapusaurus, Giganotosaurus, Carcharodontosaurus or Tyrannosaurus (FMNH PR2081). They could be 7-8 tonnes or a bit more. BTW. Even 6-7 metric ton Spinosaurus would be still one of the biggest theropods. Also don't forget about Deinocheirus, it might be over 6,5 ton theropod. Discussion about which is largest theropod is not over yet. Also Tyrannotitan deserves honorable mention. 2.Probably therizinosaurids, if this reconstruction probably by Gregory Paul is accurate.  3. The 195 cm is not certainly longer supported by original authors (Coria et. al) in later papers than about "new specimen of Giganotosaurus" from 1998. Yeah, it is largery oversized, MUCPv-95 would be closer to ~1.65 m, if it's longer and taller than MUCPv-Ch1 by 6.5-8 %. Hartman's Giganotosaurus (holotype) skull is 154 cm, which is similar to original estimate by Coria & Salgado (1995) at 153 cm and Therrier & Henderson's (2007) at 156 cm. Edit: MUCPv-95 is not a paratype = there is not paratype of Giganotosaurus carolinii. |
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Post by Grey on Nov 1, 2014 9:19:10 GMT 5
Well this is just confirming my thoughts. As I expressed, I wanted to know which one is the heaviest even by a very small margin. Hartman GDI work, and various papers (Campione 2014) let me think that the largest Tyrannosaurus specimens are the slightly heaviest guys, keeping in mind this coud change next month or next year with new findings.
Of course, Spinosaurus is still an extremely large theropod weight wise, but I wasn't surprised by this new estimate, but I wouldn't have been surprised if it had turned out to be actually 10 tonnes plus, I was not in one camp or the other. But I was suspecting Andrea Cau's opinions were going to be confirmed.
I'd REALLY like that we found more (complete) giant carcharodontosaurid material. I wonder if there's anything under study at now...
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gigadino96
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Post by gigadino96 on Nov 1, 2014 23:55:38 GMT 5
Well this is just confirming my thoughts. As I expressed, I wanted to know which one is the heaviest even by a very small margin. Hartman GDI work, and various papers (Campione 2014) let me think that the largest Tyrannosaurus specimens are the slightly heaviest guys, keeping in mind this coud change next month or next year with new findings. Of course, Spinosaurus is still an extremely large theropod weight wise, but I wasn't surprised by this new estimate, but I wouldn't have been surprised if it had turned out to be actually 10 tonnes plus, I was not in one camp or the other. But I was suspecting Andrea Cau's opinions were going to be confirmed. I'd REALLY like that we found more (complete) giant carcharodontosaurid material. I wonder if there's anything under study at now... Me too. Given that both Spinosaurus and Deinocheirus turned out stranger than we thought, I'm wondering if our Giganotosaurus/Carcharodontosaurus/Mapusaurus recostructions are really that accurate. Maybe Carcharodontosaurus had a hump on its back (?), just like how Spinosaurus and Ouranosaurus did, Giganotosaurus had some plates on its back (??) and Mapusaurus two horns on its snout (  ). |
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Post by Godzillasaurus on Nov 2, 2014 3:34:31 GMT 5
If we don't know, then we shouldn't speculate on the exact features of an animal quite yet.
Until we find more evidence, we should not try to speculate as to whether or not bony plates or heightened ridges like in spinosaurus or ouranosaurus were present in the dorsa of carcharodontosaurids.
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gigadino96
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Post by gigadino96 on Nov 2, 2014 13:37:02 GMT 5
If we don't know, then we shouldn't speculate on the exact features of an animal quite yet. Until we find more evidence, we should not try to speculate as to whether or not bony plates or heightened ridges like in spinosaurus or ouranosaurus were present in the dorsa of carcharodontosaurids. I was joking, of course. I wasn't speculating anything. |
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Post by spinodontosaurus on Nov 3, 2014 8:46:41 GMT 5
Acrocanthosaurus has tall spines, and to a lesser extent Giganotosaurus does too.
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gigadino96
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Post by gigadino96 on Nov 7, 2014 19:35:58 GMT 5
What's the size of the largest Deinocheirus' specimen? I've seen the skeletal, but I've read a lot of different measurements, ranging from 10 to 13 m.
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Post by creature386 on Nov 7, 2014 21:33:45 GMT 5
Broly said he measured 12.4 m axial length.
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Dakotaraptor
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Used to be Metriacanthosaurus
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Post by Dakotaraptor on Nov 8, 2014 2:59:09 GMT 5
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blaze
Paleo-artist 
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Post by blaze on Nov 8, 2014 4:23:35 GMT 5
I had brought attention to possible discrepancies between the scale of the elements in the skeletal, then theropod made this post in response. link^This comment is in response to the comments on axial length. |
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Fragillimus335
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Sauropod fanatic, and dinosaur specialist
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Post by Fragillimus335 on Nov 8, 2014 6:20:09 GMT 5
I get about 12.4 meters scaling from various elements, which fits Theropod's estimates well. Looks like another theropod that might be longer than Tyrannosaurus.
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Post by Grey on Nov 9, 2014 5:34:13 GMT 5
Still that hatred for T. rex size ? I believed such thoughts were over on this board.
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Post by theropod on Nov 9, 2014 15:02:43 GMT 5
What hatred?
As for Deinocheirus, as I have shown, axial lenght measurents based on various elements seem to differ by over 2.5m. The question is where the problem lies. Is it with the proportions of the skeletal? The labeling of the measurements (I.e. discrepancies between what I measured and what the actual measurement should be)? The measurements themselves?
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