Post APtg3CeHpkpAiNlAMC by palaeotaku@sauropods.win
(DIR) More posts by palaeotaku@sauropods.win
(DIR) Post #APryaWOErpaeM8N2zg by john@sauropods.win
2022-11-22T18:03:49Z
0 likes, 1 repeats
Dinosaur people: what would you say the biggest mystery in dinosaur palaeontology is?#dinosaurs #mysteries #palaeontology #paleontology
(DIR) Post #APrzXpFWOMQTvtZVOy by misterprickles@mastodon.world
2022-11-22T18:14:27Z
0 likes, 0 repeats
@john Wait ... there are dinosaur people? I think you answered your own question. #TopTrumps
(DIR) Post #APs04vjFK3SvaJGDce by mike@sauropods.win
2022-11-22T18:20:21Z
0 likes, 0 repeats
@john Why people work on ornithopods?
(DIR) Post #APs0BWU9ZjPhJwLRNg by Medicry_and_Tigby@sauropods.win
2022-11-22T18:21:07Z
0 likes, 0 repeats
@john How the heck did ankylosaurs mate?
(DIR) Post #APs0zupRLEfPIcKYHQ by john@sauropods.win
2022-11-22T18:30:37Z
0 likes, 0 repeats
@mike I like ornithopods! Shantungosaurus may be the best dinosaur after all the sauropods.
(DIR) Post #APs1UJ5Xi0zHE8M0wa by john@sauropods.win
2022-11-22T18:36:14Z
0 likes, 0 repeats
@mike …because it is the biggest. I am a simple man.
(DIR) Post #APs3Gkp006iR5tHUtk by llewelly@sauropods.win
2022-11-22T18:56:09Z
0 likes, 0 repeats
@john space rocks were a huge mystery to the dinosaur paleontologists of the late Mesozoic. They didn't solve it in time.
(DIR) Post #APs5VArCCLkNnuJQno by misterprickles@mastodon.world
2022-11-22T19:21:14Z
0 likes, 0 repeats
@john Serious answer: Jack Horner's contention that a whole bunch of small dinosaur "species" are juveniles of other, known species. Has that been answered?- Nanotyrannus (baby T. rex)- Stygimoloch & Dracorex (baby Pachycephalosaurus)and at the other end of the scale: Torosaurus is just a mature Triceratops#dinosaurs #palaeontology
(DIR) Post #APs7jbBpI3WXR5y5RI by Paleoprof@mstdn.social
2022-11-22T19:45:07Z
0 likes, 0 repeats
@john I know everyone likes to think it's been solved but the causes of the K/T extinction are still, at the end of the day, really poorly understood.
(DIR) Post #APs9nbF5EjYsfKWkJE by mike@sauropods.win
2022-11-22T20:09:19Z
0 likes, 0 repeats
@john That's a fair call.
(DIR) Post #APs9p2ONmMsl9wYvey by mike@sauropods.win
2022-11-22T20:09:38Z
0 likes, 0 repeats
@john Works for me!
(DIR) Post #APsHvQzE3Bwwo9MAVs by TM9380@sauropods.win
2022-11-22T21:39:42Z
0 likes, 0 repeats
@john ornithischian origins(assuming that’s a valid group of course)
(DIR) Post #APsKBemkiLnM96Ny6K by mikemason@mastodon.world
2022-11-22T22:05:42Z
0 likes, 0 repeats
@john Obviously, how did the Voth make it to the #DeltaQuadrant? #DistantOrigin #startrekvoyager
(DIR) Post #APsaDNj8hq5D5PXXii by sydneytheburch@sauropods.win
2022-11-23T01:05:02Z
0 likes, 0 repeats
@john It's gotta be Chilesaurus. Close contenders are "what did pachycephalosaurs do with those birthing hips" and [REDACTED]
(DIR) Post #APscJgu8WAHQD3ou0W by Ivan22@sauropods.win
2022-11-23T01:28:45Z
0 likes, 0 repeats
@john For me it is still: why were dinosaurs so prone to evolving gigantic size? I know there were plenty of small species, but 'average' dinosaurs are huge. A 1 - 2 tonne land mammal is exceptionally big, but nobody would think of a dinosaur that size as being big. Why was multi-tonne size so normal for dinosaurs?
(DIR) Post #APtg3CeHpkpAiNlAMC by palaeotaku@sauropods.win
2022-11-23T13:45:13Z
0 likes, 0 repeats
@john There are various questions but I wonder how Stegosaurus had asymmetric plates.
(DIR) Post #APthCXK0RRffOJHvJQ by john@sauropods.win
2022-11-23T13:58:19Z
0 likes, 0 repeats
@Ivan22 I agree, I think this is one of the biggest mysteries in dinosaur palaeontology. I wonder how closely related it is to the questions around dinosaur ontogeny and the ecology of juveniles that have come up.
(DIR) Post #APthNfPWhu4ZfFB4iG by john@sauropods.win
2022-11-23T14:00:17Z
0 likes, 0 repeats
@palaeotaku I haven't really followed this recently, but it's a weird one! I kinda like the idea that they were one row that became asymmetrical as the plates became too big to fit. I don't think this works with what we know about other stegosaurs though...?
(DIR) Post #APtjz3mBHPaHr4jSCm by tylopoda@hachyderm.io
2022-11-23T14:29:34Z
0 likes, 0 repeats
@john @Ivan22 Really interesting. I had never thought about this and just took it for granted until the question was posed a bit in "The Last Days of the Dinosaurs". It seems like this and much deeper study on juveniles and growth patterns could completely change our understanding of dinos (and evolution as large)
(DIR) Post #APtpOCPco73leMzLOa by bigtittybimbo@girlcock.club
2022-11-23T15:29:59Z
0 likes, 0 repeats
@john What would a T-rex dick look like and how much cum could it produce in one sitting?
(DIR) Post #APtxb7rbpUgWwNkjAW by mike@sauropods.win
2022-11-22T20:28:44Z
0 likes, 0 repeats
@misterprickles @john True story. After Horner gave a talk on his All Pachycephalosaurus Are One hypothesis at an SVPCA in the aughts, I stood up and asked this question: we have lots of example in extant animals of where cranial ornaments become more elaborate through ontogeny, but are there are any where it comes less so, as you claim for pachycephalosaurs?Horner's answer, and here I am quoting word-for-word, was: no.
(DIR) Post #APtxb8PHoHcicpVcf2 by misterprickles@mastodon.world
2022-11-22T20:42:33Z
0 likes, 0 repeats
@mike That's a killer question.🚨 Armchair amateur alert 🚨 Might that also be the case for the Nanotyrannus/T. rex question? i.e. "show me the time an animal changed its dentition from needles to hole punches"?@john
(DIR) Post #APtxb8rI8A1c1gbzJQ by mike@sauropods.win
2022-11-22T20:44:17Z
0 likes, 0 repeats
@misterprickles @john I don't know of extant analogues for that, but to be fair the whole Tyrannosaurus ontogeny proposition is that it moved through radically different eco niches at different stages, so this one at least makes sense on its own terms.
(DIR) Post #APtxb9MUGAyjaRCtw8 by markwitton@sauropods.win
2022-11-23T17:02:08Z
0 likes, 0 repeats
@mike @misterprickles @john Despite Nano defender protestations, the proposals for Tyrannosaurus dental ontogeny are entirely verified by living reptiles. Croc and some lizard teeth become more robust as they grow, and loss of tooth positions with size is rare, but not unheard of (e.g. saltwater crocs and some skinks). Neat graphic showing some data on this from Brown et al. 2015: https://onlinelibrary.wiley.com/doi/10.1111/joa.12280.
(DIR) Post #APtxb9hP0Pi0dIzbXM by mike@sauropods.win
2022-11-22T20:53:55Z
0 likes, 0 repeats
@misterprickles @john #ERRATUM: it was an SVPCA, not an SVP. Either 2007 in Austin, TX, or 2009 in Bristol, UK.
(DIR) Post #APtxo7bW6civtsQFzE by mike@sauropods.win
2022-11-23T17:04:29Z
0 likes, 0 repeats
@markwitton @misterprickles @john Very nice, thank you!
(DIR) Post #APuJPIItNzCkpvHGls by paleorhiguita@sauropods.win
2022-11-23T21:06:02Z
0 likes, 0 repeats
@john One that always stuck out to me is what is what early dinosaur phylogeny like, and how many interesting stem lineages must there have been. also reproduction, many of the larger dinosaurs had to be doing something crazy
(DIR) Post #APuTLAWHNsB54tD7uC by WilesPaleo@sauropods.win
2022-11-23T22:57:19Z
0 likes, 0 repeats
When, exactly did the Western Interior Seaway cut off Appalachia from Laramidia and how species diverse was Appalachia?
(DIR) Post #APubbveehhX9X0dD9s by KakapoJay@sauropods.win
2022-11-24T00:30:26Z
0 likes, 0 repeats
@john I've always wondered why we don't have any examples of large terrestrial vertebrates with back sails post-Mesozoic despite the fact sails evolved a decent few times prior? What did they all use those sails for and is that function not as relevant to modern species?
(DIR) Post #APucqGEl4m5HNHurOi by omearabrian@mastodon.social
2022-11-24T00:44:19Z
0 likes, 0 repeats
@KakapoJay @john It'd be interesting if it's due to something like biting flies vectoring diseases that weren't prevalent in the past. Skin over muscle can twitch, maybe it can't over sails, so once a sail starts evolving disease rates outweigh any benefit of the sail.