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#fossilfriday

16 posts13 participants0 posts today
James Green<p>Oolites in chalcedony matrix. While oolite are not fossils per se, they are fossilized indicators of ancient shallow intertidal zones where they form from precipitated calcite. <a href="https://mastodon.online/tags/fossils" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fossils</span></a> <a href="https://mastodon.online/tags/FossilFriday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FossilFriday</span></a></p>
Doyle<p>The rippled potato chip research continues. Very closely matches the fossil record the I documented earlier. Found about 100 KM apart on the Bruce Peninsula. <br><a href="https://mstdn.ca/tags/FossilFriday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FossilFriday</span></a> <br><a href="https://mstdn.ca/tags/hiking" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hiking</span></a></p>
llewelly<p>oh good, there's a new episode of Leaf it to Us out, by Dr Aly Baumgartner and Nora ... sorry I forget. It is about aerial roots!</p><p><a href="https://leafittouspod.podbean.com/e/episode-9-roots-in-the-air/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">leafittouspod.podbean.com/e/ep</span><span class="invisible">isode-9-roots-in-the-air/</span></a></p><p><a href="https://sauropods.win/tags/plants" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>plants</span></a><br><a href="https://sauropods.win/tags/fossilFriday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fossilFriday</span></a><br><a href="https://sauropods.win/tags/fossils" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fossils</span></a><br><a href="https://sauropods.win/tags/palaeo" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>palaeo</span></a></p>
James Green<p>Solitary rugose (Rugosa sp.) coral base replaced by chalcedony, Citronelle gravels, southwest Louisiana. <a href="https://mastodon.online/tags/Fossils" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Fossils</span></a> <a href="https://mastodon.online/tags/FossilFriday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FossilFriday</span></a></p>
llewelly<p>wow. _Structure and Evolution of a Sauropod Tooth Battery_ (Sereno and Wilson, 2005) contains several stereo pairs of the weird skull of Nigersaurus. And they picked the kind that's still easy for my eyes to do. I'm really appreciating these, and they look great, even in a printed volume. (I know, I know, many more people can make use of 3d red-cyan glasses, but I can't find mine.)</p><p><a href="https://sauropods.win/tags/sauropods" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>sauropods</span></a><br><a href="https://sauropods.win/tags/fossilFriday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fossilFriday</span></a><br><a href="https://sauropods.win/tags/dinosaurs" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>dinosaurs</span></a></p>

This weeks #Lego #FossilFriday is #Pterodactylus

After 1767, before 1780, an odd fossil was unearthed from the Solnhofen limestone of Bavaria.

Around 1780, Count Friedrich Ferdinand zu Pappenheim gave the specimen to the Naturalienkabinett, or nature cabinet of curiosities (a precursor to the modern concept of the natural history museum)

In 1784, Italian scientist Cosimo Alessandro Collini, described the the first specimen, naming it Pterodactylus antiquus.

Every time I idly wonder how Smilodon or any other sabre-toothed cat could possibly open its mouth wide enough to bite into anything with such large teeth I see either my own cat - or a video of a cat - yawning and the doubt is removed.

For #FossilFriday, we have a fossil from our editor Cecilia Cataldo.

This fossil is the gastropod Paleoanculosa macrochilinoides (CNAM-PI 24522) from the Lower Cretaceous of Argentina. These fossils notably show repaired shell damage as a result of attacks by one or more unknown durophagous predators 🐚

New blog post!

I continue the in-depth discussion of ribs, with a look at a fossil #whale.

If you like this content, please subscribe or leave a tip. All proceeds support research and education at the Western Science Center.

#FossilFriday #paleontology #fossil

life-from-a-certain-point-of-v

Life...From a Certain Point of View · Dense ribs aren't just for sea cowsSea cows aren’t the only animals with dense ribs.

Today's fossil is an orthocone (straight-shelled) nautiloid! This particular fossil was found in the Tyndall stone outside of a building in downtown Calgary (the Goodlife fitness on Stephen Avenue). Tyndall stone, from Manitoba, is an Ordovician limestone which frequently contains fossils. It's also widely used as a decorative stone, so next time you're downtown see if you can spot some!

This week for #Fossilfriday we have another #Guess that #Lego #Fossil.

This one I would rate as medium. This small flying reptiles is sometimes confused with its far far larger cousin.

Reminder: hide your answer behind a content warning. This will allow others to guess without a hint. I will post the answer tomorrow (and to anyone who guesses correctly).

This was designed by InfiniteCreativity

This weeks #Lego #FossilFriday is #Monolophosaurus

In 1981, Dong Zhiming found a nearly complete skeleton during a stratigraphic exploration funded by the oil industry

In 1984 the fossil was finally unearthered

In 1987, before being formally described, it was called Jiangjunmiaosaurus in the press. This is a nomen nudum (a name with inadequate description, thus its invalid).

In 1993/1994, Zhao Xijin and Philip John Currie named and described the type species Monolophosaurus jiangi