Yangchuanosaurus shangyouensis

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theropod
Paleontologists and Associates

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Yangchuanosaurus shangyouensis Feb 13, 2013 23:32:50 GMT 5

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Post by theropod on Feb 13, 2013 23:32:50 GMT 5

Yangchuanosaurus shangyouensis (Dong et al, 1978)

geographical range: China
geological range: Oxfordian-Kimmeridgian, 161-150miya
remains: CV 00215, subadult, ~8m: partial skeleton lacking -some vertebrae -most limbbones -pelvis
CV 00216, adult, ~10,5m, =Y."magnus": partial skeleton lacking -pubis, -many vertebrae, -pectoral girdle, -ribs
diet: Carnivorous
size: holotype is 8m long, largest specimen is 10-11m. Estimated weight is 3-4t

anatomical characteristics: #dual ridges along the sagittal plane of the cranium, #elongated neural spines along the back, #relatively short, robust (broad and deep) skull compared to Allosaurus fragilis

Last Edit: Feb 18, 2015 21:51:55 GMT 5 by theropod

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Infinity Blade
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The fossil record tells us "What you are now we used to be; what we are now you will be."

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Yangchuanosaurus shangyouensis Feb 18, 2015 9:40:18 GMT 5

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Post by Infinity Blade on Feb 18, 2015 9:40:18 GMT 5

I keep seeing several different skull reconstructions for Yangchuanosaurus. I'm having trouble discerning which ones are accurate.

There's one particular skull reconstruction I've seen (here) that seems to conform to the head shape of one particular restoration of the whole animal (here). That skull looks pretty impressive from lateral view at the least.

Last Edit: Feb 18, 2015 9:41:04 GMT 5 by Infinity Blade

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creature386 Co-administrator Also known as Jinfengopteryx Posts: 6,178	Yangchuanosaurus shangyouensis Feb 18, 2015 20:40:13 GMT 5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by creature386 on Feb 18, 2015 20:40:13 GMT 5 Question like that belong more in the discussion zones. Regarding your question, your reconstruction is probably fine, Yanchuanosaurus' skull was described as short.
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dinosauria101 Dinosauria Posts: 10,258	Yangchuanosaurus shangyouensis Jun 26, 2019 9:30:05 GMT 5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by dinosauria101 on Jun 26, 2019 9:30:05 GMT 5 By brolyeuphyfusion: Skeletals for the holotype and for Y. magnus

Dakotaraptor
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Yangchuanosaurus shangyouensis May 28, 2022 13:36:47 GMT 5

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Post by Dakotaraptor on May 28, 2022 13:36:47 GMT 5

I am really confused about femoral length of CV 00216. It was originally estimated of 95 cm, which would make slightly shorter than of large Allosaurus specimens and "Sinraptor" hepingensis. However on Carrano's publication the femur was 120 cm. Here is link.. I see there would be difference on measurements due various methods eg. FMNH PR2081 (138 cm / 134 cm / 132 cm) and MUCPv-Ch1 (143 cm / 136.5 cm / 135 cm). But the femoral length difference of 25 cm is very big one.

Infinity Blade Global Moderator The fossil record tells us "What you are now we used to be; what we are now you will be." Posts: 7,822	Yangchuanosaurus shangyouensis Jul 12, 2022 22:38:53 GMT 5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Infinity Blade on Jul 12, 2022 22:38:53 GMT 5 Skeletal by Dan Folkes. www.artstation.com/artwork/8e43Pn
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Exalt: And the giga not having as wide of a skull Sept 6, 2024 23:05:23 GMT 5

Exalt: I would think that it's because of T.rex striking with power Sept 6, 2024 23:02:54 GMT 5

Infinity Blade: I imagine tyrannosaurs having finesse through their premaxillary teeth. We know they could delicately scrape meat off of bones with those if they wanted to. Aug 28, 2024 1:29:55 GMT 5

Supercommunist: Anyone find it kind of weird how some people portay gigantosaurus as a finese predator compared to a tyrannosaurus? Given that tyrannosaurus had the smaller gape and the duller teeth, wouldn't it require more precision? Aug 27, 2024 23:49:00 GMT 5

Infinity Blade: Maybe Aug 15, 2024 5:02:01 GMT 5

Exalt: Could that be an anti-prefator adaptation, or? Aug 14, 2024 20:32:23 GMT 5

Infinity Blade: I've read that in birds sex only lasts a few seconds, so maybe the fact that intercourse is very brief is an advantage. Aug 12, 2024 7:26:21 GMT 5

Supercommunist: So I can't help but think that cloacas are more prone to STDS and infection that an animal that separates its poop hole and genitals. Are there any real big advantages of having a cloaca? Aug 11, 2024 12:37:19 GMT 5

Infinity Blade: Dinosaur Revolution depicted Gigantoraptor like a bird of paradise, using colors, an inflatable throat sac, and dancing to court a mate. Jul 22, 2024 18:42:46 GMT 5

Exalt: Some birds are known for extravagant courtship displays. Has anyone depicted non-avian dinosaurs doing such a thing? Presumably theropods. Jul 11, 2024 6:31:19 GMT 5

Supercommunist: Cool thanks, Infinity. Jul 6, 2024 9:38:31 GMT 5

razor45dino: 1.2 tonnes is probably a large underestimate or is not representative of a 13 meter individual Jul 6, 2024 7:39:16 GMT 5

Infinity Blade: Assuming the Kaatedocus is 13 m and 1.2 tonnes, however, only gets you ~7.5 tonnes, which is unreasonable. Jul 6, 2024 7:26:59 GMT 5

Infinity Blade: Supercommunist If you scale a 13 m 1.9 t Kaatedocus to Diplodocus' length (24 m), it comes out to be ~12 t. This lines up pretty well with a Diplodocus' body mass at that length. Jul 6, 2024 7:24:20 GMT 5

Supercommunist: I've noticed that baboons seem to gang up on predators far quicker than other social animals. Jul 6, 2024 2:18:30 GMT 5

Supercommunist: Random question but do the weight estimates for Kaatedocus siberi look accurate? it was apparently 10 to 13 meters long and the sources I have seen state it was 1.2 to 1.9 tonnes. Jun 30, 2024 12:34:37 GMT 5

Infinity Blade: Developing it overtime would seem simpler and more intuitive IMO. Slowly, as the animal grows, it gets more and more wary of steep surfaces. Jun 26, 2024 6:34:12 GMT 5

Supercommunist: Do you think multi ton species have an innate aversion to walking off steep ledges or is that something they develop overtime? Jun 26, 2024 6:17:36 GMT 5

Infinity Blade: Tbh this is my first time hearing of snapping turtle hybrids, and a lot of what I found on the Internet is limited to social media and YouTube. Jun 8, 2024 9:01:41 GMT 5

Supercommunist: Also found some info on alligator skin according to one source, an alligator osteoderm was 15mm thick. The size of the animal wasn;t mentioned. Sun, C.-Y., & Chen, P.-Y. (2013). Structural design and mechanical behavior of alligator Jun 8, 2024 8:27:58 GMT 5

Yangchuanosaurus shangyouensis

Post by theropod on Feb 13, 2013 23:32:50 GMT 5

Post by Infinity Blade on Feb 18, 2015 9:40:18 GMT 5

Post by creature386 on Feb 18, 2015 20:40:13 GMT 5

Post by dinosauria101 on Jun 26, 2019 9:30:05 GMT 5

Post by Dakotaraptor on May 28, 2022 13:36:47 GMT 5

Post by Infinity Blade on Jul 12, 2022 22:38:53 GMT 5

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