Armin Reindl

October 2021

Thanks for creating the article for Antaeusuchus! Hiroizmeh (talk) 22:32, 17 October 2021 (UTC)

November 2021

Hello, I'm Wtmitchell. I wanted to let you know that I reverted one of your recent contributions—specifically this edit to Wikipedia:WikiProject Palaeontology/Paleoart review—because it did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help desk. Thanks. Wtmitchell (talk) (earlier Boracay Bill) 13:40, 17 November 2021 (UTC)

I must assume there has been a mistake given the confusing state of the review page following your edits and the fact that I merely asked for feedback for an image that may come into use in the future. I would very much appreciate having these vandalism warnings? removed accordingly Armin Reindl (talk) 13:54, 17 November 2021 (UTC)

GA

@Armin Reindl: Greetings! Thank you for expanding Stupendemys! Someone with just one edit on the article nominated it for GAN. If you want to get the article to GA (which is very easy at this point), just ping me and I'll start a review for you (just copy and paste this:{{subst:GAN|subtopic=Biology and medicine}} and replace it with the current GA template on the talk page). Wretchskull (talk) 18:51, 2 January 2022 (UTC)

Your GA nomination of Stupendemys

Hi there, I'm pleased to inform you that I've begun reviewing the article Stupendemys you nominated for GA-status according to the criteria. This process may take up to 7 days. Feel free to contact me with any questions or comments you might have during this period. Message delivered by Legobot, on behalf of Jens Lallensack -- Jens Lallensack (talk) 22:40, 4 January 2022 (UTC)

Your GA nomination of Stupendemys

The article Stupendemys you nominated as a good article has passed ; see Talk:Stupendemys for comments about the article. Well done! If the article has not already appeared on the main page as a "Did you know" item, or as a bold link under "In the News" or in the "On This Day" prose section, you can nominate it within the next seven days to appear in DYK. Bolded names with dates listed at the bottom of the "On This Day" column do not affect DYK eligibility. Message delivered by Legobot, on behalf of Jens Lallensack -- Jens Lallensack (talk) 16:41, 9 January 2022 (UTC)

My thoughts of the paper of Sebecus ayrampu

The paper of Sebecus ayrampu last year is quite suspicious for me for the following reasons:

1: The study retains the original classification of Sebecus:

"Therefore, we consider for the moment this is an unnecessary nomenclatorial change and we regard Zulmasuchus querejazus and Langstonia huilensis as junior synonyms of S.huilensis and S.querejazus"

The new generic combination of S.huilensis and S.querejazus were made in the 21st century, but there is still some taxonomists still regard the original classification, similar to how some taxonomists still regard Tarbosaurus as Tyrannosaurus bataar. In my point of view, it's not a major consensus so we must ignore that.

2: Too much difference from S. icaeorhinus

Due to i found that S. ayrampu has too many contrasts with S. icaeorhinus, it needs a new genus name in the future.

1) I had very little input on the Sebecus page as it is in its current state. My sole contribution to Sebecus is the addition of the new species so I am not sure why you specifically come to me to voice your thoughts on the matter.

2) Generally just due weight and original research need to be brought up here. Even if you deem S. ayrampu to be too different, it's not our call to make. That's original research not supported by publications and thus, no offense, not allowed on wikipedia. And as far as Zulmasuchus and Langstonia are concerned, a single paper making an off-hand mention does not overturn prior research automatically. It takes a more in-depht publication and even then it's most likely not enough to immediately chance concensus. Nor would the authors opinion on Sebecus taxonomy render the rest of the paper invalid.

3) I see you've been on here for a while so please sign your comments with four "~" at the end of your paragraph

4) Like FunkMonk has told you multiple times it seems, please don't go to individual editors for this. Like I said in my first point, I merely made a single edit so I am not sure why you've come here Armin Reindl (talk) 14:03, 15 March 2022 (UTC)

About your sandbox

I apologize for any of the inconvenience caused at your sandbox. I will not edit your sandbox again. Magnatyrannus (talk | contribs) 02:40, 7 September 2022 (UTC)

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Jebel Qatrani Formation

With reference to Jebel Qatrani Formation what does this mean, "estimated boy size"? Neils51 (talk) 03:30, 4 June 2023 (UTC)

a typo, nothing more, its fixed Armin Reindl (talk) 14:56, 4 June 2023 (UTC)

I have sent you a note about a page you started

Hello, Armin Reindl. Thank you for your work on Perucetus. User:SunDawn, while examining this page as a part of our page curation process, had the following comments:

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✠ SunDawn ✠ (contact) 16:18, 2 August 2023 (UTC)

Thanks for all your work on fossil crocodilians!

I just wanted to thank you for all the great work you've done adding content to fossil crocodilians! So many articles have been greatly expanded. It's fun to see your additions pop up on my watch list. I just wanted to give you some recognition and appreciation. Good work, keep it up! Cougroyalty (talk) 16:57, 25 September 2023 (UTC)

Thank you. Crocodilians and Pseudosuchians in general are a topic I'm very passionate about and I'm glad the work is paying off. As you probably noticed I'm currently working through mekosuchines, which I'll probably be able to finish soon enough (only two major pages are missing an overhaul). After that I'll take a brief "break" by tackling basilosaurids along a friend, but I'll return to the group for any new taxa and eventually take on another larger clade. Armin Reindl (talk) 11:00, 26 September 2023 (UTC)

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I have sent you a note about a page you started

Hello, Armin Reindl. Thank you for your work on Peltocephalus maturin. Chaotic Enby, while examining this page as a part of our page curation process, had the following comments:

Very well-written and comprehensive article, happy to see articles like this in the new pages queue! Easily C-class at least, if there are more sources and images that can be added, it could be well on the way to becoming a GA. (Also, the article is suitable for WP:DYK if you can get an interesting hook about it!)

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Chaotıċ Enby (talk · contribs) 20:06, 13 March 2024 (UTC)

I do actually plan on making a size comparisson (unless I get distracted by my other ongoing projects) and some rudimentary scaling definitely highlights how ridiculously big that thing is. I did consider doing more DYKs in the past given the types of edits I tend to make, but thanks for the kind words. Armin Reindl (talk) 22:32, 13 March 2024 (UTC)

Mekosuchinae Barnstar

		The Tireless Contributor Barnstar
		For your tireless work updating and creating articles about extinct crocodiles, awarded following your complete overhaul of the mekosuchine articles! The Morrison Man (talk) 20:07, 6 September 2024 (UTC)

Spellings

Hi! Thank you for all your hard work on the fossils. Given that both have come up a few times, I thought you might like to watch out for the spellings of consensus (not concensus) and comparison (not comparisson). I hope that this is helpful. Will all good wishes, DBaK (talk) 23:58, 6 November 2024 (UTC)

Yeah sorry about that, I do try to keep it in mind. I actually was thinking of the whole consensus thing when working on Romaleodelphis, tho evidently I got it the exact opposite way of what it should have been. Apologies. Armin Reindl (talk) 19:12, 7 November 2024 (UTC)

Please don't worry too much – it happens all the time! It's so very easy to go for concensus in an apparently logical way! Thank you for the nice reply. DBaK (talk) 01:09, 8 November 2024 (UTC)

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Consensus spelling

Hi. Thank you for your recent edits. You might want to check your spelling of consensus, which is spelt thus and not concensus. To remind myself, I find it useful to think of the key idea here as consent rather than census. Hope this helps, best wishes, DBaK (talk) 22:23, 19 January 2026 (UTC)

Thank you both for the message and for cleaning up after me. Regretably, tho I'm painfully aware of the mistake, I continue to keep things mixed up in my mind. I will nonetheless try to keep the spellings straight.Armin Reindl (talk) 22:54, 19 January 2026 (UTC)

Nice one, thank you so much for the reply and for your continued efforts! Cheers DBaK (talk) 23:01, 19 January 2026 (UTC)

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Need help about Pliosaurus

Hello Armin Reindl! As I know you specialize in writing articles about fossil reptiles (especially aquatic ones), I was wondering if you could perhaps take on, at least in part, the article on Pliosaurus in the near future. Specifically, I have two sections of the article that I'm having trouble developing because they're so complex. The first concerns the "Paleoecology" section, and more specifically the "England" subsection. This section deals with the Kimmeridge Clays, a geological formation from which the vast majority of Pliosaurus specimens have been discovered. The second concerns the study entitled "Functional anatomy and feeding biomechanics of a giant Upper Jurassic pliosaur (Reptilia: Sauropterygia) from Weymouth Bay, Dorset, UK", dealing with the case of the jaws force of P. kevani, in which I have difficulty transcribing conveniently in the article. Cordialy, Amirani1746 (talk) 18:46, 1 February 2026 (UTC).

Apologies @Amirani1746 for being, oh christ, 2 weeks late on the response. I'm afraid I'm not of much use anyways tho. I did do a few marine reptiles yes, but those were mostly favors to people I was knew personally or just random spur of the moment type decisions, so my actual knowledge at a broader scale is limited.

I also just got myself out of a motivational slump and back to my main goal which is my work on pseudosuchians, where I'm currently in the middle of reworking the entirety of Itasuchidae.

I'd like to help, but I'm afraid I'm just a bit busy. I do wish you the best of luck tho. Armin Reindl (talk) 18:01, 12 February 2026 (UTC)

No problem, that for reponse anyway :) Amirani1746 (talk) 18:12, 12 February 2026 (UTC)

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Nanxiong formation

do you know anything about the stratigraphic confusion of the nanxiong formation and guifeng group? Dinodev123 (talk) 06:40, 12 February 2026 (UTC)

Bits and pieces but far from the whole thing. I've briefly looked into it when covering orientalosuchins just to get a broad overview.Armin Reindl (talk) 18:18, 12 February 2026 (UTC)

Would you be willing to link me the PDF of that 2022 paper about eurycephalosuchus?

I've kind of gotten halfway through in sorting out the mess of nanxiong. The basic jist is that the chronological information on the nanxiong formations Wikipedia page comes from the nanxiong basin of guan dong province China. Like all the radiometric dates and magnetostratigraphy on the formations wiki page comes from that basin. But the actual dinosaurs from the nanxiong formation ( qianzhousaurus, asiatyrannus, all them oviraptorids, etc) actually come from the ganzhou basin and guifeng group in nearby ganzhou city in jiangxi province China.

The fact that they belong in a different basin and different group it's something I've sorted out. What I need to sort out is the guifeng group itself. Some papers have said that the boundaries between the constituent formations of that group ( hekou,lianhe and tangbian) are indistinct and that therefore all three of them should be lumped into the hekou formation. But then some papers still treat the units as distinct.

As a result what I think needs to be done is that the nanxiong Formations Wikipedia page needs to be stripped basically completely bare of the dinosaurs they don't belong to that formation. And that they need to be transferred to a new page. that new page should be the page on the guifeng group. Because of the dispute over whether or not the three formations in that are of the same formation or different, I think the safest thing that needs to be done is that the fossils from them need to be lumped in and considered as coming from the same group since that's the most parsimonious position to take here. Since all the dinosaurs from the hekou, tangbian and lianhe formations can be agreed as coming from the guifeng group. If you think all the formations are part of the hekou formation then it would still be regarded as part of the guifeng group. I Think you get what I'm saying. Dinodev123 (talk) 18:33, 12 February 2026 (UTC)

Ok yeah most the stuff you said rings a bell regarding what my own research came up with at the time. God the clashing names were a pain.

Anyways, yes your course of action makes sense. Split the fossil content from Nanxiong Fm and create a new page for the Guifeng Group to further avoid it immediately getting dated by further changes in the stratigraphy and division. Definitely good to bring this up on the project paleontology talk page as well, but this all makes sense.

As for your request, I'm happy to send you the paper. I am a bit unfamiliar with the Wikipedia emailing system but I can send you a wetransfer link if that would be alright?Armin Reindl (talk) 20:24, 12 February 2026 (UTC)

Will that be a link I can just download? Dinodev123 (talk) 20:25, 12 February 2026 (UTC)

Yes, unless you got some other place I can send the PDF directly to?Armin Reindl (talk) 20:31, 12 February 2026 (UTC)

I don't understand to be honest what wetransfer is? Would it be like a link that you post and then I click on the link and it'll allow me to download. If so I've done stuff like that before Dinodev123 (talk) 20:33, 12 February 2026 (UTC)

Ok it turns out Wikipedia doesn't allow wetransfer, which makes this a little tricky. That being said, the geological discussion in the paper is rather brief so I am unsure of how much use the paper is.Armin Reindl (talk) 20:39, 12 February 2026 (UTC)

The "Geological setting" part of the paper essentially identifies the site that yields Eurycephalosuchus as the redbeds of the Hekou Formation and notes the presence of dinosaurs, eggs, turtles. The paper states that the redbeds are generally either assigned to the Ganzhou Group or the Guifeng Group "in ascending order" and goes on to divide the Ganzhou Group into the Maodian and Zhoutian formations while the Guifeng Group is divided into Hekou and Tangbian formations (Late Cretaceous) and Lianhe Formation (Cretaceous-Paleogene).(see Wen et al., 2016) The paper then states that the redbeds are alternatively assigned to the Nanxiong Formation Group (citing the Jiangxi Bureau of Geology and Mineral Resources, 1984), but notes how this is inconsistent with Xing et al. 2021. The paper then brings up the age estimates of Zuo et al., 1999 of 71.4 to 65.0 Ma with the Hekou within the Guifeng Group being Early Maastrichtian. The paper wraps up the section by noting the great geographic extent of the Hekou Formation, including the type locality of Jiangxisuchus of Nankang city centre, despite having previously been assigned to the Nanxiong Group/Formation. Armin Reindl (talk) 20:48, 12 February 2026 (UTC)

hey I have another thing I hope you could help me with this thing however should be more of your forte. I knew you as an expert on Paleo Crocs. Seen you make multiple very detailed reconstructions based off the direct science.

There is a longistorine croc that I am a fan of but its size has not been estimated with O'Brien and colleagues newly regression equations that they used to adjust the estimate of sarcosuchus.

I was hoping you could apply that to the animal I have in mind. animal in question is machimosaurus. it did get new estimates in 2016 but this was before the regression equations provided by O'Brien. it's considered big headed for its size so I think the equations would work.

Species in question is machimosaurus hugii. https://pmc.ncbi.nlm.nih.gov/articles/PMC4448888/ according to this paper the skull length is about 150 cm but the skull width is uncertain. based off the skull width to skull length ratio of its two relatives which is 2.25-2.35, a machimosaurus hugii with a 150 cm skull should a skull width of 64-67 cm.

With that information in mind could you use the regression equation from O'Brien to figure out the size of it? Don't understand how those equations work cuz was never my expertise Dinodev123 (talk) 20:38, 16 February 2026 (UTC)

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Sissokosuchus photos

Hi Armin - I uploaded this image of a maxilla referred to Sissokosuchus and added it to the page since it seemed like maybe the most recognizable element. But MorphoBank has dozens more photos of the hypodigm here, all under the public domain, in case you're interested. Cheers, -SlvrHwk (talk) 18:05, 6 June 2026 (UTC)

Ah this is excellent news, thank you. I am currently reworking Itasuchids anyways (minor sidequests like Incakujira and revival of my Dromornis collab with Tim notwithstanding), so this is gonna be very useful, especially when I get around to putting together some illustrations. Again, much appreciated, cheers. Armin Reindl (talk) 18:17, 6 June 2026 (UTC)

No problem, happy to help. -SlvrHwk (talk) 18:42, 6 June 2026 (UTC)