#tetrapods — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #tetrapods, aggregated by home.social.
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Some time later...
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(chuckles) I'm in danger #IKEA :tetrapod: :danger:
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So if I understood this article correctly, the key conclusion is this - metamorphosis was not the condition for moving onto land?
The traditional picture was:
Tetrapods could leave water because they first evolved a tadpole-like larval stage and then metamorphosed.
The new interpretation suggested by these fossils is closer to:
Tetrapods gradually adapted to land over evolutionary time, and they probably did not need a frog-like metamorphosis to do it.
In other words, metamorphosis was probably not a prerequisite for terrestrial life. Instead, the transition from water to land appears to have been a long, gradual evolutionary process affecting the whole life cycle, rather than depending on a distinct larval stage.
Analogy of two possible scenarios:
Old model
- Young live in water.
- Undergo a major developmental transition.
- Adults become adapted to life on land.
New model
- Young and adults share the same basic body plan.
- Land adaptations accumulate gradually over millions of years (generations).
So the narrative shifts from:
Metamorphosis enabled the move onto land
to:
The move onto land happened gradually, and amphibian-style metamorphosis likely evolved later as a specialized adaptation.
https://www.404media.co/a-new-fossil-discovery-just-rewrote-150-years-of-evolutionary-theory
#Biology #Evolutionary #EvolutionaryBiology #Fossil #Discovery #Metamorphosis #Tetrapods #Science
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they're back…!
TetZoo podcast episode 95 [audio 89m24s] #tetrapods #TetZooCon #DinoCon #Spinosaurus #Palaeontology https://tetzoo.com/podcast/2026/2/25/episode-95-its-been-haulong
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Just uploading some clips to my @MakerTube and wanted to reshare this @FreeCAD tutorial I put together about making #tetrapod #tetrapods! #freecad https://makertube.net/w/pydrT4Wued1XuMHk3qXdj7
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12-Nov-2025
Variety of animals evolved similar genetics solutions to survive on land, study finds -
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Oh my! We may have overdone it a bit with the #HighVoltage at #Gaussfest
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Rounding out the week #3dprinting one of those #tetrapods I did the video about designing in @FreeCAD a few days back. #freecadfriday
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Further to this mornings #tetrapod #tetrapods toot I've done a very quick n dirty @FreeCAD tutorial video on how to #CAD model one up... erm as an aside, tetrapod people, what do we call each limb of a tetrapod? Leg? Arm? Tooth? Who knows! Anyhoo here is the video on my @MakerTube
https://makertube.net/w/pydrT4Wued1XuMHk3qXdj7 -
8-Jul-2025
Deep dive into the ‘mighty bite’ of mysterious ancient #fishPredatory fish that evolved into the first terrestrial animals on Earth are still revealing insights into the origins of mammals – including new research into the eating habits of lobe-finned fish which inhabited an ancient reef in northern Australia.
https://www.eurekalert.org/news-releases/1090435
#science #evolution #fossils #vertebrates #tetrapods #ecology
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you can make your own https://sidselbonde.com/textile-tetrapod-block/
I acutally wonder if they could be a shape of sandbag for #strongman competitons.
#tetrapods -
'earlier than previously thought' story of the epoch… #palaeontology #tetrapods #WestlothianaLizziae
https://mastodon.scot/@fionaorkneynews/114612816985763051 -
a different take on the early #reptiles: https://www.eurekalert.org/news-releases/1083321
sounds more important from this angle
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Might I interest you in some early #tetrapods ? I find them oddly endearing. The pictures are from the Natural History Museum in London, one of my favorite museums.
(Though I guess #tiktaalik is more if a #fish than an early tetrapod)
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The fish with the genome 30 times larger than ours gets sequenced - Enlarge / The African Lungfish, showing it's thin, wispy fins. (credit:... - https://arstechnica.com/?p=2043288 #evolution #tetrapods #genetics #genomics #lungfish #science #biology
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Giant salamander species found in what was thought to be an icy ecosystem - Enlarge (credit: C. Marsicano)
Gaiasia jennyae, a newly discov... - https://arstechnica.com/?p=2036337 #paleontology #extinction #salamander #evolution #tetrapods #science #biology #ecology
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300 million-year-old tail print shows that scales evolved earlier than expected https://arstechnica.com/science/2024/06/scales-helped-reptiles-conquer-the-land-when-did-they-first-evolve/
A diadectid skin impression and its implications for the evolutionary origin of epidermal scales https://royalsocietypublishing.org/doi/10.1098/rsbl.2024.0041
"the epidermal scales in #diadectids and other terrestrial #tetrapods prevented the evaporation of water from their bodies, which may have helped them survive the #desert climate that prevailed on #Pangea during the #Permian"
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380-Million-Year-Old #Fossils of Air-Breathing Tetrapod #Fish Found in Australia https://www.sci.news/paleontology/harajicadectes-zhumini-12661.html
A new stem-tetrapod fish from the Middle–Late Devonian of central Australia https://www.tandfonline.com/doi/full/10.1080/02724634.2023.2285000
"#Tetrapodomorpha comprises the limbed tetrapods and their closest fish relatives.. The group diversified greatly in both marine and freshwater habitats during the Middle-to-Late #Devonian while giving rise to several distinct lineages, including the earliest limbed #tetrapods."
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@Himmapaan , Marc Vincent, and Niels Hazborg released a new episode of the wonderful podcast Love in the Time of Chasmosaurs:
https://chasmosaurs.com/2023/12/30/podcast-show-notes-episode-30-tetzoocon-on-ice/
it is all about tetzoocon, the convention run by @john and @TetZoo
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I'm not sure if I'm misremembering it, but wasn't there a #99pi episode on #tetrapods? Or was it a different podcast? :-?
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Who were the first proponents of the water-to-land transition of vertebrates? Did the idea that tetrapods originate from fish precede the discovery of transition fossils? Were the discussions on land-to-water (e.g. ichthyosaurs origin) and water-to-land transitions contemporary?
I’m trying to place some late 18th/early 19th century science writing into context, but have no background in the history of science.#paleontology #historyofscience #fossils #tetrapods #evolution
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CW: SOLVED: Why did the tetrapod come out of the water?
Well, apparently there were invertebrates to feed on, and they left marks too:
https://www.tumblr.com/sobearwolf/723754458869334016?source=share
>I just saw something that looks very mundane but is extremely rare and incredible… -
#FossilAdventCalendar Day 24
Our journey #north ends with one of the most important #fossils ever found. Like Puijila, Tiktaalik roseae is known from #Nunavut 🇨🇦, has an #Inuktitut name (meaning "large freshwater #fish"), and records an important #evolutionary transition, this time from #sea to #land. #Tiktaalik shares traits with both fish and #tetrapods, making it a close relative of all of us land-living #vertebrates. This replica and model are from the #CanadianMuseumOfNature.
