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Posts by Ambrox

A bunch of bones sorted into a plastic bin, labels include “turtle toes”, “crocodilian teeth”, and “fish bones/verts”

A bunch of bones sorted into a plastic bin, labels include “turtle toes”, “crocodilian teeth”, and “fish bones/verts”

Sorting microfossils comes with so many little joys, including making a category solely for “turtle toes”

4 days ago 20 2 0 0

Your work is so lovely to look at! Such crunchy, yet crisp linework

2 weeks ago 1 0 1 0

Also me: not being a good camera operator

1 month ago 0 0 0 0
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Not me crying over some cute bats just flappin’ around 😭

1 month ago 5 0 1 0
Comic. [Small panel overlaying large panel.] PERSON 1: What’s up with this weird landscape? PERSON 2 with ponytail: Oh, it was caused by… [Large panel is map of the United States with with red overlays denoting landscape phenomena. Mega-floods in the northwest, a plate tectonics speedrun on the west coast, volcanoes next to the west coast, water and time in the southwest, geology in the west, a supervolcano within the west, glaciers in the north, farming in the middle, rivers in the mideast, geology in between rivers and farming, ??? toward the northeast, farming on the east coast, continents colliding next to the east coast, ongoing disputes between limestone and water in the south of Florida, volcanoes in Hawaii, geology in Alaska with volcanoes and glaciers below.]

Comic. [Small panel overlaying large panel.] PERSON 1: What’s up with this weird landscape? PERSON 2 with ponytail: Oh, it was caused by… [Large panel is map of the United States with with red overlays denoting landscape phenomena. Mega-floods in the northwest, a plate tectonics speedrun on the west coast, volcanoes next to the west coast, water and time in the southwest, geology in the west, a supervolcano within the west, glaciers in the north, farming in the middle, rivers in the mideast, geology in between rivers and farming, ??? toward the northeast, farming on the east coast, continents colliding next to the east coast, ongoing disputes between limestone and water in the south of Florida, volcanoes in Hawaii, geology in Alaska with volcanoes and glaciers below.]

Landscape Features

xkcd.com/3221/

1 month ago 5155 1005 82 78
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Ding-dong! The Dutch Fish Doorbell needs you to help migrating fish A Dutch lock is closed for the spring, and its employees want you to tell them when migrating fish come knocking by ringing a digital doorbell

A Dutch lock is closed for the spring, and its employees want you to tell them when migrating fish come knocking by ringing a digital doorbell

1 month ago 293 85 8 5
1 month ago 168 43 2 1
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A tabletop with fossil shells littered around. They aren’t fully cleaned yet.

A tabletop with fossil shells littered around. They aren’t fully cleaned yet.

Coon creek dig this past weekend was quite nice! These shells are approximately 76 million years old, but retain their original shell material!

1 month ago 1 0 0 0

When will we see any new eps from your okami series? My husband and I think about your videos all the time; we’d love to see them come back!
Totally understand if you’re burnt out, but just know that there is interest!

1 month ago 0 0 0 0
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Rare Fossil of Baby Dome-Headed Dinosaur Unearthed in Canada | Sci.News Paleontologists have described the youngest example yet of a pachycephalosaur body, offering a look at how these dinosaurs grew and moved during their first months of life.

www.sci.news/paleontology...

1 month ago 109 27 2 0
A black and white drawing of a sweating ICE agent, looking over his shoulders at a bunch of disembodied eyes watching him. The text reads WE CAN SEE YOU

A black and white drawing of a sweating ICE agent, looking over his shoulders at a bunch of disembodied eyes watching him. The text reads WE CAN SEE YOU

Summer 2025 edition

10 months ago 13554 3540 0 29
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He Studied Why Some Female Birds Look Like Males

"I don’t know why my fellowship was terminated. I suspect that it has something to do with studying a species that doesn’t fit the binary of what we expect to see in nature, with completely different males and females."

@carlzimmer.com profiles my wonderful coauthor @jjinsing.bsky.social Gift link.

3 months ago 585 183 10 15
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Smithsonian Acquires Exceptionally Complete Skull of Iconic Dome-Headed Dinosaur

Pachycephalosaurus sold at auction donated to NMNH, will be on display next week
www.si.edu/newsdesk/rel...

4 months ago 54 9 1 3

This is such a great idea!

6 months ago 1 0 0 0
An abstract looking archaeopteryx on a plain green background

An abstract looking archaeopteryx on a plain green background

A mischievous archaeopteryx has appeared!

6 months ago 207 72 5 0
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Megacerops was a large ungulate from the White River Formation (38-33 million years ago) of the Midwest in the US. They resembled Rhinoceros, but had bony nasal horns that were covered by skin, not a keratin horn!
#paleoart
#fossilart

8 months ago 11 3 0 0
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Mega Dragonite
Done in procreate as an unintentional 1hr speed paint
#pokemon #dragonite #megaevolution #pokemonAZ

9 months ago 6 3 0 0
A Tyrannosaurid tooth, with serrations and partial root. Next to a scale of one inch increments.

A Tyrannosaurid tooth, with serrations and partial root. Next to a scale of one inch increments.

A metasequoia seed cone sitting next to a dinosaur tail tendon fossil. Next to a scale of one inch increments.

A metasequoia seed cone sitting next to a dinosaur tail tendon fossil. Next to a scale of one inch increments.

A collection of microfossils, from left to right: a crocodilian crushing tooth from a brachychampsa, a bowfin fish jaw section, two freshwater ray teeth from Myledaphus, and a vertebra from a gar fish. Next to a scale of one inch increments.

A collection of microfossils, from left to right: a crocodilian crushing tooth from a brachychampsa, a bowfin fish jaw section, two freshwater ray teeth from Myledaphus, and a vertebra from a gar fish. Next to a scale of one inch increments.

A chunk of Amber, crystallized from tree sap.
Next to a scale of one inch increments.

A chunk of Amber, crystallized from tree sap. Next to a scale of one inch increments.

Here are some of the fossil finds from this year’s dig season: the crown jewel being a Tyrannosaurid tooth. Also shown are a Metasequoia cone, a fossil tendon, a crocodilian tooth, and some freshwater ray crushing teeth, plus some amber!

9 months ago 4 0 0 0
Full slab view of a Primobucco, a type of roller-like bird, from the green river formation.

Full slab view of a Primobucco, a type of roller-like bird, from the green river formation.

Zoom in of the head of a Primobucco, a type of roller-like bird, from the green river formation.

Zoom in of the head of a Primobucco, a type of roller-like bird, from the green river formation.

Image of a modern roller bird, the long-tailed ground-roller. 
© Nigel Voaden

Image of a modern roller bird, the long-tailed ground-roller. © Nigel Voaden

A “before” image of the Primobucco specimen.

A “before” image of the Primobucco specimen.

My first big bird project is done! I’m excited to show you all this bird that took me so long - at least a few months! This guy comes from the green river formation and is the most common bird found there: Primobucco mcgrewi.

9 months ago 39 12 1 0
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Here are the answers to today’s #findthefossil! Some of the suspicious looking bits are actually dead sagebrush leaves. Included in the mix here are turtle bits, various dinosaur chunks, and maybe some crocodilian bone pieces. I’ll try to post some more of these challenges in the future!

9 months ago 6 0 1 0
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Here’s a game for y’all!
I have a picture with fossils in a “float” deposit, where they’ve been washed out of the rock and precipitated out in the ground in the hell creek formation! Let’s see how many you can spot! I’ll post the answer in a little bit! Instead of #findthatlizard , #findthatfossil !

9 months ago 4 0 2 0
A western harvester ant in Montana

A western harvester ant in Montana

An overhead view of a harvester ant hill, which includes bones of a small animal

An overhead view of a harvester ant hill, which includes bones of a small animal

Another harvester ant hill with abundant white gypsum crystals included

Another harvester ant hill with abundant white gypsum crystals included

It’s time for: a creature spotlight!

On the ranch where the crew and I dig every year, there are harvester ants that gather and sort small sediment for their hills! They are known to grab small microfossils (like teeth) and small bits for their hills, including bones!

9 months ago 4 1 0 0
A plume of a distant wildfire in makoshika state park

A plume of a distant wildfire in makoshika state park

A prickly pear cactus mid bloom in Montana

A prickly pear cactus mid bloom in Montana

A prairie rattlesnake, mid-shed, perched on a dry creek bed bank in Montana

A prairie rattlesnake, mid-shed, perched on a dry creek bed bank in Montana

A Least Chipmunk in the brush in Montana

A Least Chipmunk in the brush in Montana

I’m alive!! I had the wildest field session this year, including a brush with a wildfire and some cool wildlife! Stay tuned for photos of the stuff I found on my dinosaur dig this year!

9 months ago 6 1 0 0

This makes me sick... and angry. 😡

10 months ago 24 6 1 0
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It’s so cute 😭😭

10 months ago 1 0 0 0

Noooo a legend 😭

10 months ago 1 0 1 0
The majority of the bone fragment haul. Also included in the picture is a Primobucco cast I painted myself and a doormat that desperately needs to be painted.

The majority of the bone fragment haul. Also included in the picture is a Primobucco cast I painted myself and a doormat that desperately needs to be painted.

A closeup of the nicer rex bits, toothbrush for scale

A closeup of the nicer rex bits, toothbrush for scale

Gonna be cleaning some scraggly T. rex bits to sell in my shop at some point. Keep an eye out! Hopefully I can get them listed before I head out on this year’s trip! Unfortunately, these bits aren’t worth salvaging as an entire specimen due to how much weathering had been done to it.
#hellcreek

10 months ago 2 0 0 0
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Bothriolepis on the brain

11 months ago 6 1 0 0

It’s a great blue heron!

11 months ago 0 0 0 0
The micro texture on a jawless fish from the Devonian of Pennsylvania.

The micro texture on a jawless fish from the Devonian of Pennsylvania.

Zoomed out on a jawless fish fin covering from the Devonian of Pennsylvania.

Zoomed out on a jawless fish fin covering from the Devonian of Pennsylvania.

A micro texture on a placoderm fish from presumably the red hill deposits in PA. So cool to see these up close!

11 months ago 7 1 0 0