#devonian fish

[mannlibrary]

Jaws of the giant fossil shark and a stuffed picture of “Dinichthys a Devonian Fish” from Animals of the Past: An Account of Some of the Creatures of the Ancient World. Frederic Lucas. 1922. https://newcatalog.library.cornell.edu/catalog/12112918

#jaws #jaw bone #shark teeth #shark #fish #fishery #devonian fish #fishing #paleontology #animals #zoology #water #shark jaw #jaws of life #taxidermy #biology #skeleton #shark bones #fish teeth

[knuppitalism-with-ue]

The amount of interesting research about placoderms in recent years gives me life.

They are such goobers.

Dunkleostes, Amazichthys, Alienacanthus and Entelognathus

#sciart #paleoart #paleostream #palaeoblr #devonian #sketch #animals #fish #placoderm #dunkleosteus #goobers

[fruitpunchnoice]

Do you think the coelacanth suffers from survivor's guilt

Is that why he hid for so long

He didn't know how to go on without those who were left behind

#biology #fish #coelacanth #placoderms #beautiful beautiful placoderms too good for this world #devonian #prehistoryposting

[weepingwidar]

Konstantin Korobov (Russian, 1985) - Fish (2023)

#konstantin korobov #art #painting #dunkleosteus #fish #prehistoric fish #devonian #arthrodira #placoderm #the dunk

[amnhnyc]

Don’t mess with this fish! To celebrate Fossil Friday, let’s meet Dunkleosteus terrelli. It lived some 360 million years ago during the Devonian. Fossil records indicate that this animal, one of the first large jawed vertebrates in the ocean, was an aggressive predator. The razor-sharp edges of bones in its jaws served as cutters, and as they rubbed against each other, the opposing jaw blades acted like self-sharpening shears. These bones continued to grow as they were worn down by use. This specimen, on display in the Museum’s Hall of Vertebrate Origins, was found in Ohio!

Visiting the Museum this Thanksgiving? Best availability is on Monday and Tuesday of that week. Here are some tips to help plan your visit!

Photo: Image no. ptc-5861 / © AMNH Library

#science #amnh #fossil #museum #natural history #nature #paleontology #fish #icthyology #dunkleosteus #did you know #fact of the day #devonian #fossil friday

[radstarsaur]

Just some paleozoic friends

#anomalocaris #dimetrodon #dunkleosteus #icthyostega #fish #prehistoric #prehistoric animals #paleo #paleo art #paleozoic #ancient #ancient animals #lil guys #cambrian #cambrian explosion #paleontology #devonian #permian

[shatteredreaiity]

Made a Tiktaalik

#paleoart #paleo art #paleontology #prehistoric #tiktaalik #devonian #paleozoic #fish #prehistoric fish

[moog190]

i have a biology exam tomorrow so i drew this fish instead of revising. i love this fish, it is a coelacanth and its really old with some living relatives still around today and originally they were up to about 6 and a half metres long. very long. also their brains apparently only take up about 1.5% of their cranium space which is a mood tbh

#fish #coelacanth #fossil #devonian period #devonian #also i left my headphones in starbucks which im sad about

[cbsorgeartworks]

Some Devonian fishies done at Drawing Club

Marker on paper / 3hrs / 2/23/2024

#fish #sketchbook #devonian #marker sketch #sketch #drawing #paleoart

[puzzledjaypros]

💖💗💕 Just Dunkle Things 💕💗💖

Posted using PostyBirb

#pjp #original #dunkleosteus #devonian #prehistoric #fish #mask #moving jaw #silly #fun

[tinylandshark]

The mighty Dunkleosteus, terror of the late Devonian

#my art #paleoart #dunkleosteus #armored fish #Devonian #digital illustration #digital art #procreate

[vickysaurus-art]

On a rainy Devonian day, a Tiktaalik father guards his eggs in a small forest river. Meanwhile, his hunting mate has her eye on a Bothriolepis. Another Bothriolepis is eating something buried in the river sediment, drawing the attention of a Coccosteus.

I've wanted to draw Tiktaalik for a while. It's easily the most depicted creature of the Devonian, but it always seems to get shown boldly pulling itself onto the land. While that was of course extremely important in hindsight, surely they spent much more of their time living quite happily underwater. So here's some interesting behaviour some lungfish do: the dads guard their eggs after they're lain in water plants.

#tiktaalik #stegocephalian #lobe-finned fish #devonian #bothriolepis #coccosteus #placoderm #archaeopteris #chara #rhacophyton #paleoart #my art #rain #forest #rainy #palaeoblr

[knuppitalism-with-ue]

Results from the #paleostream! Propyrotherium, Cryptopneumon (for Dekerrex), Robinsondipterus and Multoisda duinlecebra (for @petitepaleoartist) If you too want a wish fulfilled, buy one of the books I illustrated and post about it on social media!

#sciart #paleoart #paleostream #palaeoblr #fish #spec evo #south america #eocene #devonian #lungfish

[dykegeology]

Devonian lobe finned fish group chat

Coelacanth419: Swimming is so fun!

😁5 🐟4 😊2

That_Lungfish: Do you prefer eating fish or marine invertebrates?

🐟7 🦐5 😋1

_Sarcopterygian_: I love having fins for swimming and not going on land

😍7 💕3 🌊2

TiktaalikTerrestrial: Ate a terrestrial crustacean today haha :)

😬6 🙄5 🤬2

#lobe finned fish #tiktaalik #devonian #palaeontology #paleontology

[fishyfishyfishtimes]

why did the ray finned fishes win out in terms of speciation and population in the water compared to us lobe finned fishes? did we lobe finners just have a skill issue (or gill issue if you will) and fumble the aquatic niches?

Ooh, what an exciting question! I didn't know the answer myself, but this news article provides an interesting and good (in my opinion) hypothesis for how. The article explains that in the Devonian, the now-extinct class placoderms and lobe-finned fish were the two dominating animal groups of the aquatic world, no doubt closely followed by sharks who also diversified greatly. So, we did in fact thrive and dominate over ray-fins for a while! However, the Hangenberg event, also known as the end-Devonian extinction that took place about 359 million years ago, sadly brought an end to the placoderms as a whole, along with many, many lineages of lobe-finned fishes that used to exist: heck, over 96% of all vertebrate species were lost during this time! With great losses of diversity like this, entire classes of animals gone, well... a power vacuum forms. With only some cartilaginous fishes and ray-finned fishes left, it took them no time to diversify and fill in those previously full niches! Looking at the current diversity of ray-finned fishes, it really doesn't take much to assume that they took this opportunity with stride.

How come sharks didn't quite get as diverse, then? Well... I'm not sure. Perhaps the ray-finned fishes were quicker to reproduce? Maybe bony skeletons are just that much better? Some ponder that a bony skeleton would've been more protective and offered more points of attachment for muscles to allow for more powerful movement. It could also just be that bony fishes can live in freshwater as well as saltwater which allowed them to diversify away from cartilaginous fishes! But these are just guesses.

TL;DR: Us lobe-fins didn't have a gill issue at all — heck, two of of the "fishy" lobe-fin lineages are still alive today after other numerous extinction events! Though, perhaps us tetrapods did in fact develop a literal gill issue soon enough... we were rather quickly on our way to colonise the land and follow in the footsteps of invertebrates during and after the Devonian. In any case, the ray-finned fish just saw an opportunity once a power vacuum emerged, and took it! Super happy for them for taking that chance ngl, clearly it worked out really well for them. Now they're the most diverse group of vertebrates!! Love to see a heartwarming success story of the underdogs winning haha

#some tetrapods seem to have regretted not taking that chance to recolonise the water after the devonian. just look at how many groups of - #tetrapods have returned back to aquatic life!! but the ray-fins were quicker ;) #(granted we are some of the most fearsome predators in the ocean ecosystems now... just look at whales... but thats beside the point.) #(i want to give the fishes a win!!! i think they did indeed win when it comes to vertebrates because holy moly) #asks #kennedy-the-genderfluid-punk #love the name! hope you learned something kennedy! i sure did writing this :D #fish

[quirkysphinx]

I've started doing some studies of prehistoric animals that have captured my imagination since I was a child.

Dunkleosteus is probably one of my favourites from the Devonian era.

Available on my Red Bubble store

#my art #vector art #dunkleosteus #devonian #prehistoric #fish #prehistoric fish #wildlife drawing #Paleoartistry #artists on tumblr