#fossilfriday — Public Fediverse posts

This weeks #Lego #FossilFriday is #Arizonasaurus

In 1947, Samuel Paul Welles formally described UCMP 36232, a maxilla with a few teeth, as Arizonasaurus.

It was found in Holbrook quarry, which is in an Aegean/Bithynian fine channel fill siltstone in the Moenkopi Formation of Arizona. I cannot find when the fossil was found or by who.

In 2002 a more complete Sterling Nesbitt, which was used to make the replica shown below.

Curious what's been going on in #cephalopod #palaeontology in recent years? We got you covered: New review paper out led by Christian Klug and many co-authors!

https://doi.org/10.1017/jpa.2026.10256

#FossilFriday #paleontology #evolution #science #OpenAccess #nautiloids #ammonoids #coleoids #belemnites

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

This one I would rate as hard. This is a critter is from the Middle Jurassic.

Hide your guesses behind a content warning, so others can guess without being spoilt. I will post the answer tomorrow (and to anyone who guesses correctly).

This was designed by Mindbox.

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

This one I would rate as hard. This is a critter is from the Middle Jurassic.

Hide your guesses behind a content warning, so others can guess without being spoilt. I will post the answer tomorrow (and to anyone who guesses correctly).

This was designed by Mindbox.

An Ichthyosaur by Hermann Post, 1930s.
#fossilfriday #prehistory #prehistoric #dinosaur

🐴🐘🐪 This tooth survived the end of the Ice Age in a gravel pit. 🦷

Found 5 miles east of Montevideo, this lower horse molar may have belonged to one of the last Equus roaming Minnesota before their disappearance from North America. It’s tooth 10 in the 12 specimen project tracing Minnesota’s Ice Age horses.

Follow the whole 12 tooth journey in Lost Bones #4 thru the link in my bio.

#LostBones #FossilFriday #Pleistocene #Equus #MinnesotaHistory #Paleontology #CitizenScience #RadiocarbonDating

🦥🐴🐘🐪 #FossilFriday — A lower horse molar (SMM P2025.8.7) from Olmsted County is specimen 9 of 12 headed for radiocarbon dating.

Olmsted County has produced multiple Ice Age finds over the years, including several mammoth tusks and both mammoth and mastodon teeth from county gravel deposits—many of which I’ve posted about previously.

On Substack:
https://open.substack.com/pub/marcusbrandel/p/lost-bones-4-update-part-2

👇 What will the dates show—Ice Age or more recent?
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#Pleistocene #Equus #Paleontology #CitizenScience #RadiocarbonDating

#LostBones #FossilFriday #RadioCarbonDating 🐂🦥🐴🐘🐪In June 1921, workers removing the overburden at the Sagamore Mine near Riverton, Minnesota uncovered a peat layer ~eight feet below the surface that held a rich Pleistocene bone bed. Among the material recovered from this layer were a horse molar (specimen #6) and an horse incisor, found alongside other late‑Quaternary remains within the same sedimentary zone.

https://www.crowwinghistory.org

#pleistocene #palaeontology #CitizenScience #Equus

🐴 #LostBones #FossilFriday — Twelve horse teeth from across Minnesota are headed for radiocarbon dating.

This pristine specimen #3 comes from Flower Valley near Red Wing. It was found by Shari Albers when she was ten, discovered as her dad worked a field.

Read the full story in Lost Bones #4 (link in my profile).

#Pleistocene #IceAgeMinnesota #RadiocarbonDating

Photo Credit: Purple prairie clover central MN / Kelly Povo

🐴 #LostBones 🐘🦥🐪 For #FossilFriday, a new series: 12 horse teeth from across Minnesota, each one headed for radiocarbon dating to finally pin down when these animals moved across the state’s post glacial landscape.

Specimen #1 comes from a private collection near Little Sauk, Minnesota — a single horse tooth pulled from a skull found in the black marl of the Sauk River.

How do they fit into the lives or paleo-Minnesotans?

#Pleistocene #Equus #Paleontology #CitizenScience #RadiocarbonDating

🦌#Minnesota #FossilFriday 🐂🦥🐴🐘🐪🐟🍃Remnants of deer and bison are common along many Minnesota rivers. Teeth, metacarpals, metatarsals, and some long bones withstand the erosive forces of rivers particularly well.

These specimens were all found during a single kayak trip this field season, along just a two-mile stretch of river in southern Minnesota.

#pleistocene #holocene #bisonbison #whitetail #odocoileusvirginianus #palaeontology #shareyourdiscovery #citizenscience

WEDNESDAY
#WaterfallWednesday #WhiskersWednesday #RoseWednesday #HadrianWallWednesday #HillsfortWednesday #MeerMittwoch

THURSDAY
#BlackAndWhiteThursday #RomanFortThursday

FRIDAY
#FensterFreitag #FernFriday #FlowerFriday #FridayFlowers #FlyFriday #FossilFriday #FrogFriday #FungiFriday #PhotographyFriday #WindowFriday #RuinedPrioryFriday #FieldFriday

SATURDAY
#Caturday #InsectSaturday #InsektenSamstag #RomanSiteSaturday #SchiffsSamstag

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