Talk:Pachyrhinosaurus

Keratin Horn

Given how Pachyrhinosaurus has historically often been depicted with a keratinous horn of some sort, including the original models at the Royal Tyrell museum (up until the late 2000s), but a 2009 study debunked this idea (https://anatomypubs.onlinelibrary.wiley.com/doi/full/10.1002/ar.20985), there should be at least a brief section talking about this hypothesis. From what I can tell, this idea was first proposed by Philip J. Currie in 1989 in a paper called "Long Distance Dinosaurs" (I haven't seen any online copies of it).

Feel free to add something about it, but I'm not sure it warrants an entire section. FunkMonk (talk) 14:23, 25 April 2024 (UTC)

I think it warrants at least a paragraph discussing it. This wasn't a niche idea after all, it has appeared in a lot of media, like the 1992 documentary mini-series "The Dinosaurs", in Jurassic Fight Club (2008) and it even showed up in 2019's Amazing Dinosaur World, as well as fiction like Dino Riders and Dinosaur King. And even the Royal Tyrell Museum saw it fit to reconstruct the animal with a large, starfish-like keratinous structure up until the late 2000s (https://www.storagetwo.com/blog/2016/9/meet-our-resident-dinosaurs-pachyrhinosaurus). 109.228.107.227 (talk) 15:02, 25 April 2024 (UTC)

Sure, by section I mean with its own header title. There should eventually be a skull section where theories about its keratinous covering can be discussed. Perhaps a section about keratin on its own. FunkMonk (talk) 15:05, 25 April 2024 (UTC)

Dead link

During several automated bot runs the following external link was found to be unavailable. Please check if the link is in fact down and fix or remove it in that case!

• http://dinosauricon.com/genera/pachyrhinosaurus.html
  • In Pachyrhinosaurus on Mon Jul 17 14:50:21 2006, Socket Error: (110, 'Connection timed out')
  • In Pachyrhinosaurus on Thu Jul 27 00:38:28 2006, Socket Error: (110, 'Connection timed out')

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maru (talk) contribs 04:38, 27 July 2006 (UTC)

?!

Someone has told me that there's undescribed evidence of omnivory in this animal. Is this true, and if it is, is there any information about it? Star Hound (talk) 01:47, 29 April 2010 (UTC)

So far it's a rumor. J. Spencer (talk) 02:37, 29 April 2010 (UTC)

It's been speculated that some or all ceratopsians might have been opportunistic omnivores, but nothing's been published yet. Apparently there is an unpublished Psittacosaurus specimen that shows they ate meat. Read this for more info on the topic: [1] MMartyniuk (talk) 04:59, 29 April 2010 (UTC)

New species?

The cladogram mentions an unnamed species not mentioned in the article is there an information on this? — Preceding unsigned comment added by 142.176.114.76 (talk) 14:23, 31 August 2013 (UTC)

It's the skeleton in the same section. FunkMonk (talk) 21:40, 20 February 2014 (UTC)

I can/'t seem to find it, paragraph? The papers that mention it never seem to place it in Pachyrhinosaurus in particular, just specify that it's a pachyrhinosaur.Capra walie (talk) 15:55, 15 April 2014 (UTC)

Ah, you're correct, for some reason this article has Pachyrhinosaurus as the clade name, I'll remove that. FunkMonk (talk) 20:41, 15 April 2014 (UTC)

Hypothetical keratinous horns?

I am aware there have been theories about Pachyrhinosaurus having keratinous horns in place of their nasal bosses in life, similar to horned rhinos. But, is there any relevant significance of this information that could be added into the article and not just a single picture for demonstration? Gabeluna27 (talk) 06:46, 7 January 2019 (UTC)

It should of course be discussed. The idea and its history is discussed in this freely available article[2]. FunkMonk (talk) 17:18, 7 January 2019 (UTC)

Which species were how long?

"The largest Pachyrhinosaurus species were 8 metres (26 ft) long.[10] It weighed about four tonnes."

The relevant line from that citation (excluding column headers) reads:

"Pachyrhinosaurus thick-nosed reptile Late Cretaceous (80-66.8 MYA) 26.2 ft (8 m) Rhino Alaska; Alberta Last, and largest, of the centrosaurines. Known from herds."

An additional resource specifying which species was estimated to be that long, and which specimen that estimate was calculated from would be appreciated.

--2601:206:8003:4060:80D7:D487:25ED:1C61 (talk) 11:03, 3 December 2020 (UTC)

Troodon?

In the paleofauna section, it mentions Troodon. From what I know, this is an outdated name. If I am wrong, please correct me. Cryolophosaurus Ellioti5858 (talk) 15:11, 5 May 2023 (UTC)

Looking at the St. Mary River Formation article, it lists it as being cited as "? Troodon sp." in a book from 2004. So what this would basically mean now is "indeterminate troodontid". But keep in mind some current researchers do use the name Troodon for specimens from the Two Medicine Formation, so it is not outdated as such. FunkMonk (talk) 17:29, 5 May 2023 (UTC)