#Dinosaur bone fossil

[starryspngs]

Skull fossils! Source: X / X / X / X

[prospitpuppy]

couple dinosaur pixels i made for my rentry

F2U WITH credit

stills under the cut

dino plush stills in the next post

[stone-cold-groove]

The diplodocus and its anatomy.

[lullabynursery]

They Might Be Giants Here Comes Science Stimboards Pt1 - I Am a Paleontologist!

🦴 ⚒️ 🦴 ⚒️ 🦕 ⚒️ 🦴 ⚒️ 🦴

[rochnan]

Handy studies! A comparison between the Zhenyuanlong suni's arm from 125 million years ago, and the wing from the modern-day Razorbill (Alca torda). And their heads, as I had a little time for them.

[geologyin-blog]

Agatized dinosaur bone is a fossilized dinosaur bone that has been replaced by silica minerals, typically microcrystalline quartz crystals, through a process called permineralization.

[maddydoesart]

How it started vs. How its goin'

So happy with how these samples turned out 🥹🥹

[mineralsrocksandfossiltalks]

Throwback Thursday: The Curious Case of Brontosaurus

Everyone has heard of Brontosaurus. It's one of the top five dinosaurs kids learn. However, do you know about the rocky past of this fan favorite? Brontosaurus was discovered in 1879 by Othniel Charles Marsh (or at the very least, his crew) during the height of the infamous Bone Wars. It was collected from Como Bluff, Wyoming and it was a nearly complete skeleton. All it was missing was its head (a typical, sauropod problem).

At this time, the Morrison Formation was at the center of the Bone Wars conflict so Marsh was feeling rushed and pressured to publish on this new find before his rival, Edward Drinker Cope, had the opportunity to publish something new first. Even though he hoped to recover a skull, Marsh opted to publish without.

Now, the Yale Peabody Museum couldn't display a headless skeleton so they decided to sculpt one. As I mentioned before, sauropod skulls are not easy to come by. The damn things are so small compared to the rest of the body and so fragile that the pop off and disarticulate. The only skulls that had been found with any substance was Camarasaurus and a few Brachiosaurus fragments. I mean, look at the size difference between Camarasaurus and Diplodocus skulls:

(The Diplodocus skull is significantly smaller. You can see it below and to the right of the Camarasaurus in the top photo).

So, all they had to really go off of was Camarasaurus and Brachiosaurus so they made a composite of the two that ended up looking like this:

Horrifying, isn't it? I mean, those two sauropods aren't even closely related to Brontosaurus.

In 1903, Elmer Riggs argued that Brontosaurus was not different enough from Apatosaurus to warrant a different genus. A different species, sure, but not genus. Since Apatosaurus was named first, it had priority therefore Brontosaurus excelsus became Apatosaurus excelsus. However, the general public missed the memo so Brontosaurus stayed in common literature.

In 2015, an extensive study was done on the diplodocid branch (check out my Monday Musings post on sauropod phylogeny if unfamiliar with sauropod families) and they concluded that Brontosaurus was legit. Usually, names don't get revived to keep things from getting confusing but Brontosaurus survived nearly 100 years of existential crises so its popularity in the general populace allowed for a revival.

And that is the short history of how Brontosaurus existed then didn't exist and then existed again. Tune in tomorrow to learn about Brachiosaurus altithorax.

[uk-fossils]

Fossil Dinosaur Bone Camarasaurus | Hell Creek Formation | Cretaceous Fossil on Metal Stand | COA Included

This listing is for an exceptional Fossil Dinosaur Bone from Camarasaurus, professionally mounted on a custom metal stand for display. The fossil originates from the Hell Creek Formation, dated to the Maastrichtian Stage of the Upper Cretaceous, and was discovered in Harding County, South Dakota, USA. The photo shows the actual fossil you will receive, with a 1cm scale cube included for size reference – please consult the image for full sizing.

Fossil Type & Species: This specimen is a fossilised bone from Camarasaurus, a genus of herbivorous sauropod dinosaur known for its large body, long neck, and short snout. Camarasaurus lived during the Late Jurassic to Early Cretaceous periods, and its fossils are often identified by their thick, robust bone structure and marrow cavity patterns. Though more commonly associated with Jurassic sites, isolated Camarasaurus material has been documented in transitional and reworked Cretaceous deposits.

Geology: The Hell Creek Formation is one of the most significant fossil-bearing rock units in North America, known for its rich assemblage of Late Cretaceous vertebrate fossils. It comprises sandstones, mudstones, and shales deposited in fluvial (river) and floodplain environments. The Maastrichtian age (approximately 72–66 million years ago) marks the last stage of the Cretaceous period. This formation has yielded numerous dinosaur taxa, including the iconic Tyrannosaurus rex, Triceratops, and rare sauropod elements such as this Camarasaurus bone.

Scientific & Display Value: Fossil dinosaur bones such as this Camarasaurus piece are treasured both for their scientific relevance and aesthetic impact. Displayed on a metal stand, this piece is perfect for fossil collectors, educators, or enthusiasts looking for a genuine dinosaur fossil to showcase. The texture and mineralisation reflect the millions of years of fossilisation that have preserved this ancient bone.

Product Notes:

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Scale Rule Cube = 1cm. Please see the photo for full sizing.

This is a carefully selected fossil – you will receive the exact specimen shown in the photo.

A museum-quality specimen, this Camarasaurus fossil bone from the Hell Creek Formation is a rare and timeless piece of Earth's history, perfect for display or educational purposes.

[cupids-rainbows]

Shelly stimboard !

🦖 🦖 🦖 / 💛 🤎 💛 / 🦕 🦕 🦕

[osc-brainrot]

SHELLY SITMBORED FOR MY AMAZING ARSOME SUPER HOT GIRLFRIEND U ALL WISH U HAD

1-2-3

4-~-5

6-7-8

[ritz-regrezzez]

🦕dinosaur agere moodboard ( 🦕 🦕 🦕 )

[cabrocabron]

『 ​🇳​​🇴​​🇼​ ​🇵​​🇱​​🇦​​🇾​​🇮​​🇳​​🇬​ . . . . 』 ​ 

╰┈➤ ⸙ 🇸‌🇼‌🇦‌🇳‌ 🇱‌🇦‌🇰‌🇪‌ - 🇦‌🇳‌🇹‌🇱‌🇪‌🇷‌🇸‌ ⸙

[nyk-g]

Took this pretty neat photo at the museum

[bechena]

Scientists will be like "new spinosauridae described last week!"

And the spino in question:

[stone-cold-groove]

The diplodocus and its anatomy.