#Late Jurassic Period

[blueiscoool]

Billionaire Ken Griffin Buys Stegosaurus Fossil ‘Apex’ For Record $44M

Stegosaurus skeleton, nicknamed 'Apex,' sells for record $44.6M

A nearly complete stegosaurus skeleton sold at a Sotheby's auction in New York on Wednesday for a record $44.6 million -- the most ever paid for a fossil.

The dinosaur, nicknamed "Apex" -- which lived between 146 and 161 million years ago in the Late Jurassic Period -- was originally expected to sell for between $4 million and $6 million, according to the auction house.

Sotheby's has said Apex is the "most complete and best-preserved Stegosaurus specimen of its size ever discovered."

The skeleton was discovered on private land in Moffat County, Colorado -- in northwestern Colorado and on the border with Utah and Wyoming -- in May 2022 by commercial paleontologist Jason Cooper, with excavation completed in 2023, according to Sotheby's. The county is an area where many other dinosaur fossils have been discovered and is home to the Dinosaur National Monument.

Apex measures 11 feet tall and 27 feet long from nose to tail. The skeleton consists of 319 bones -- 254 of which are fossils and the remainder being either 3D printed or sculpted. It's unclear if Apex was male or female.

Stegosaurus sp. Late Jurassic (approx. 161-146 million years ago) Morrison Formation, Moffatt County, Colorado, USA

[trendynewsnow]

The Evolutionary Journey of Cicadas: Adapting to Predation

The Evolutionary Journey of Cicadas Today, cicadas are among the most ubiquitous insects on the planet. With thousands of species found across various ecosystems, some cicada populations emerge in astounding numbers, sometimes by the trillions. However, during the late Jurassic Period, these remarkable insects were not nearly as plentiful. The cicadas of that era were significantly bulkier than…

[shattersaurus]

Apexpredator of the cretaceous oceans, Mosasaurus Hoffmanni

[makairodonx]

Jurassic June 2024 Day 24: Pterodactylus antiquus

[ancientfrozenglaciershark]

Museum of Natural History of Utah!

[frenchyfoxy]

Fubuki doodle!! Also dino doodles past the break ❤

Stegosaurus is literally my favorite dinosaur, but I also drew a parasaurolophus and therizinosaurus. They're just quick doodles, nothing super accurate

[extinctworld-ua]

Thalassiodracon

Thalassiodracon — вимерлий рід плезіозаврів з родини Pliosauridae, що існував у пізньому тріасі – ранній юрі і відомий виключно з Нижнього Ліасу Англії. Типовий і єдиний вид — Thalassiodracon (Plesiosaurus) hawkinsi (Owen, 1838).

Повний текст на сайті "Вимерлий світ":

https://extinctworld.in.ua/thalassiodracon/

[mineralsrocksandfossiltalks]

Fossil Friday: Barosaurus or Supersaurus?

During my short time volunteering in the prep lab at the BYU Museum of Paleontology I was given one of the last jackets they had stored away from the Dry Mesa Quarry back in the 60's.

Here's a closeup as I was trying to piece the sucker back together.

It was a massive cervical (neck) vertebra and there were two dinosaurs paleontologists believed it could be: Barosaurus or Supersaurus. Both of these sauropods come from the Late Jurassic Morrison Formation, both can be found in Colorado and in the Dry Mesa Quarry (located near Delta, CO) and both are diplodocid sauropods.

Barosaurus, meaning "heavy lizard", averages about 82-89ft (12-20m) in length. The cervical vertebrae were up to 50% longer than Diplodocus cervicals while the caudal vertebrae were shorter. This meant Barosaurus had a longer neck but a shorter tail than Diplodocus. It also had shorter, more complex neural spines than Diplodocus.

Supersaurus, or "super lizard" averages about 108-115ft (33-35m) in length with at least one individual housed at BYU estimated to have been 128ft (39m) long. It was similarly built to Apatosaurus.

Now the vert I was working on (along with another one that had already been prepped out) are about 4.5 ft (1.4m) long which brings this animal's size up considerably, closer to 150 ft (45m) long.

So what do you think? Barosaurus or Supersaurus?

[joitiks]

graysexual ceratosaurus & questioning allosaurus !!

they can both be found here ~

[nickysfacts]

Pteranodons use to be falling with style, with their sexy crests and always being high on oxygen!

😆

[blueiscoool]

Large Kranaosphinctes Ammonite Late Jurassic Period (approx. 160 million years ago), Madagascar

While dinosaurs ruled the land during the Late Jurassic, the ammonite genus Kranaosphinctes could be found flourishing in the oceans.

Ammonites were a type of cephalopod — the taxonomic class that includes today's nautilus, octopus, and squid. Much like a submarine, ammonites employed gas- and liquid- filled chambers to regulate their position in the water column. The animal itself lived only in the outermost compartment, employing its tubular siphuncle to connect its chambers along the shell's ventral surface.

[dizzybevvie]

Questions for dinosaur nerds!!!

1. what is the difference between Maiasaur and Shantungosaurus? is it just size?

2. is there a reason some dinosaurs are "saur" and others are "saurus" and/or are they interchangable?

3. What modern country/area had the most interesting dinosaurs in your opinion?

4. Do you enjoy jurassic park even though it's inaccurate?

5. Where do you get most of your dinosaur information?

6. Whatre your favourite carnivore + herbivore :> ?

7. Whats your favourite random dinosaur fact?

[sallywitchartist]

The first part of my dinosaur coloring-book series is finally out on Amazon! I would really appreciate, if you, lovely people, would go and check it out 💜

[makairodonx]

Arm Lizards at Sunset

A pair of Brachiosaurus altithorax browse upon the Araucaria leaves while two Dryosaurus scamper by in the foreground as the sun sinks below the 155-150 million year-old landscape of what is now the Morrison Formation

[a-dinosaur-a-day]

What's most amazing about people who hate that birds are dinosaurs is that, without the discovery of birds being dinosaurs in the 1960s, none of y'all would have ever actually cared about dinosaurs

the history:

dino craze in 1800s. people thought, birds are very similar to these guys. Dollo fucked it up, made a bad theory, and people stopped thinking that

Early 1900s, dinosaurs deemed sluggish, stupid, pointless evolutionary failures. most people not really into dinosaurs anymore. this continues until

1960s: Deinonychus discovered. suddenly, dinosaurs interesting again: vibrant, lively, warm blooded animals. Also... birds might be dinosaurs?

from the 60s through the 70s, a slow buildup of dinosaur culture - both in crappy stop motion movies, but also in children's books and other media

80s cladistics revolution shows birds are living dinosaurs, though not without flaws. documentary after documentary is made, causing the major dinosaur boom of the late 80s and early 90s

the peak of this boom are the A&E and PBS documentaries, which both outright state birds are dinosaurs

cartoons like land before time and other dinosaur content keep coming out too, especially at the end of the 80s and the earliest 90s

the book jurassic park, referencing the birds are dinosaurs thing, is written in the late 80s. in the early 90s, is adapted into one of the greatest blockbusters of all time. now dinosaur interest is MAINSTREAM.

jurassic park isn't the start of the dinosaur boom, it is the apex

90s becomes the decade of dinosaurs, with tons of new discoveries, television shows, documentaries, and other programming

1996 first feathered "nonavian" dinosaur discovered. birds are dinosaurs is the closest thing we have to proven phylogenetic fact

1999 walking with dinosaurs premieres, revolutionizing the dinosaur-documentary genre.

early 2000s becomes the age of Period-Type Dino-Docu-Dramas

velociraptor is determined to have feathers

suddenly, dinosaur mania starts to die in the later 2000s

even though discoveries keep happening and we learn so much in the 2010s, the 2010s becomes a very regressive time - a sort of reactionary response to the birdification of dinosaurs and the dinosaurification of birds. the height of this is jurassic world

we may be in the middle of a dino-docu-drama revitilization thanks to prehistoric planet. stay tuned on that one

like, everyone was fine with the birdification of dinosaurs up and until they looked "feminine" on the outside, because of feathers.

It's just all such transparent misogyny and homophobia and people who react against feathered dinosaurs or birds being dinosaurs are just... so transparently parroting conservative talking points

Anyways, yeah. without birds are dinosaurs, you wouldn't have jurassic park. Sooooo

[extinctworld-ua]

Oblitosaurus

Oblitosaurus — рід анкілоплексисових орнітоподових динозаврів з пізньоюрської формації Вільяр-дель-Арзобіспо в Іспанії. Типовий вид — Oblitosaurus bunnueli.

Повний текст на сайті "Вимерлий світ":

https://extinctworld.in.ua/oblitosaurus/