The Pembina Gorge dig was awesome - just... not a lot of cell coverage to upload awesome photos.

Great fish, our first plesiosaur, a bunch of birds, and some fun (modern) insects!

#notadinosaur #fossil #paleontology #cretaceous

A #dinosaur tooth #fossil of a #Majungasaurus crenatissimus (syn. #Majungatholus atopus) from the #Cretaceous aged Maevarano Formation in the former Mahajanga Province of Madagascar.

#Cretaceous

The Cretaceous featured some of life's most gorgeous crescendos of diversity, like the Yixian formation, where a Psitaccosaurus wants to visit the favourite tree of a group of Sinosauropteryxes, who are having none of it. This is still one of my favourite pieces I've ever drawn.

#paleoart

(11/14)

A young 𝑴𝒐𝒔𝒂𝒔𝒂𝒖𝒓 doing the thing with an older, experienced 𝑷𝒕𝒆𝒓𝒂𝒏𝒐𝒅𝒐𝒏 who's aware of the dangers lurking in the Western Interior Seaway depths.
Made on Autodesk Sketchbook.

#paleoart #dinosaurart #mosasaur #pterosaur #Pteranodon #cretaceous #art #artwork #digitalart #digitalpainting

'This fossil of a mammal biting a dinosaur captures a death battle's final moments'

...a #remarkable #new #fossil, originating in the early #Cretaceous some 125 million years ago and now described in the journal #ScientificReports, conjures a rather different possibility. It consists of two #intertwined #skeletons — an upstart #mammal #sinkingitsteeth into a much larger #dinosaur.

https://www.npr.org/2023/07/18/1188275701/this-fossil-of-a-mammal-biting-a-dinosaur-captures-a-death-battles-final-moments

#AllThingsConsidered
#AriDaniel

It’s #Minnesota #FossilFriday! 🍃🦣🦥🐴🐪🦬🐟 Back up 95 million years from last Friday’s #lostBones #bison skull cap - here are some Cretaceous leaf fossils found along the Cottonwood River while working with staff from the Science Museum of Minnesota.

These fossils were found within a patchy broken stratum of Cretaceous-age sandstone and clay.

#Cretaceous #leaf #fossils #paleontology #shareyourdiscovery #citizenscience #sciencemuseumofmn

Why do we find so much #amber in #Cretaceous #rocks?

https://phys.org/news/2023-07-amber-cretaceous.html

Complex folding in Lower Cretaceous lacustrine shales of the Xiagou Formation, in the foothills of the Qilian Mountains near Nanhu and Changma, Gansu Province, China. Outcrops near here produced spectacular fossils of the ornithuromorph bird _Gansus_ among other fossils. #geology #geoscience #china #gansu #cretaceous #fold #structuralgeology #naturalhistory

A lot of people like to call my usual artstyle #pointilism, but I would say that is incorrect. Pointilism makes explicit use of color, whereas I only draw in b&w, so it is more accurate to call it #stippling.

So, here‘s my actual first attempt at pointilism. I tried to draw Baculites, a Late #Cretaceous genus of #ammonite which is notable for briefly surviving past the K-Pg impact.

#paleoart #paleontology #fossil #fossilart #mesozoic #cephalopod #paleocene

Una manada de iguanodon ha entrado en panico y se lanza a un río. En la foto original había una manada de ñues.

#commissions #3d #3D #dinosaur #paleoArt #paleoArt #cretaceous
https://www.instagram.com/p/CtQrm4BLRVb/?igshid=MTc4MmM1YmI2Ng==

#NewPaper #Stratigraphy #Cretaceous #Mongolia

Myu Tanabe, Kazumasa Aoki, Kentaro Chiba, Mototaka Saneyoshi, Shota Kodaira, Hirotsugu Nishido, Buuvei Mainbayar, Khishigjav Tsogtbaatar & Shinobu Ishigaki (2023)
Apatite U–Pb dating of dinosaur teeth from the Upper Cretaceous Nemegt Formation in the Gobi Desert, Mongolia: Contribution to depositional age constraints
Island Arc 32(1): e12488
doi: https://doi.org/10.1111/iar.12488
https://onlinelibrary.wiley.com/doi/10.1111/iar.12488

When getting closer to #Fuente-Alamo de #Albacete, skies turn dark. Everywhere is water after the driest spring ever and temperatures above 36 in April. What a contrast. Ramblas and Barrancos turned into raging waters, the plain areas are soaked. Never seen so widespread before over the last 27 years.. #climatechange #españa
And due to my own curiosity, got stuck in some #Cretaceous mud...

Today’s #megafauna is the #cryodrakon! This large #pterosaur lived in Alberta, Canada between 74 and 77 million years ago. At the time, the land supported a temperate forest that would have provided the cryodrakon with plenty of mammals, lizards, and baby dinosaurs to snack on. Like #quetzelcoatlus, cryodrakon was a member of azhdarchidae: a family of late #cretaceous pterosaurs characterized by long legs and necks. Most members of this family are very large, and cryodrakon had a wingspan of 33 feet.

For a long time, cryodrakon fossils were confused for quetzelcoatlus fossils. This was exacerbated by the delayed publication of a full description of quetzelcoatlus. However, the discovery of several European azhdarchidae species allowed for additional differentiation. When the original quetzelcoatlus bones became available to view, it became clear that cryodrakon was species distinct from its Southern cousin. In fact, crydrakon was apparently more robust than quetzelcoatlus, making it perhaps the largest pterosaur ever.

The ‘Champion’: Bones of a predatory dinosaur found in eastern Spain.

The discovery of a potential new species, which has been named in honour of a local football club, underlines the wealth of fossil deposits from the Cretaceous period in Castellón province.

The discovery of maxilla and vertebrae from a single specimen has led researchers to describe “a new spinosaurid genus and species”: Protathlitis cinctorrensis.

https://english.elpais.com/science-tech/2023-05-18/the-champion-bones-of-predatory-dinosaur-found-in-eastern-spain.html

#Spain #Paleontology #Dinosaur #Cretaceous #Science

#Fieldwork day 3: we're approaching the #cretaceous oceanic anoxic event 2...
...It smells of sulfur 😝

I just learned an 84.1m tall Taiwania cryptomeroides has been identified just this year, now Taiwan's tallest living #tree. Taiwania is known from abundant #fossils from the #Cretaceous of Asia and North America. #paleobotany

Here is the latest version of the #InternationalChronostratigraphicChart. The changes for this version include the addition of a #GSSP for the #BarremianStage in the #Cretaceous.

I have not been able to find any information on the vote regarding the #Anthropocene at the recent #AAAS meeting. Does anyone know the outcome of that vote. This is something that needs to be adopted and placed on the next chart.

The importance of re-examining museum specimens as well as some fascinating information about #India in the #Cretaceous period and the clever use #dinosaurs made of lava fields!

https://www.nhm.ac.uk/discover/titanosaur-dinosaur-egg-agate-museum-discovery.html

In #cockroach 🪳news...

Many early cockroaches exhibited long #ovipositors (posterior organ for egg-laying), but by the #Cretaceous those had mainly been lost.

Li, and Huang​ (2023) describe #fossil cockroaches from the Cretaceous that still have this feature. They speculate that shifts in plant diversity (less gymnosperms, more angiosperms) contributed to the demise of "long-tailed" cockroaches and that these fossils were some of the last of this group.

🔗 https://peerj.com/articles/15067/

🪳🪳🪳🪳🪳🪳🪳🪳🪳🪳🪳🪳

#African #FossilFriday

In the 1980s, a diamond mine in Orapa, #Botswana 🇧🇼 began to yield gems of a different kind: #fossils of #Cretaceous #flowers and #insects, including #flies, #beetles, #ants, and #wasps. This #lagerstätte (a site of exceptional #fossil #preservation) records one of the most important #evolutionary transitions in the history of #life on land: the spread of #flowering #plants and their #coevolution with #insect #pollinators.

Photos from Rayner, 1993
https://journals.co.za/doi/abs/10.10520/AJA052550590_225