Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
@cambriancam.bsky.social
I am a science communicator and self-taught paleontologist/geologist located in Georgia. Future Invertebrate Paleontologist. I collect and study fossils from the Appalachian Basin.
Paleo Nerd 🦖🪨 ⚒️
Paleo Nerd 🦖🪨 ⚒️
Ooooo
November 25, 2025 at 5:33 PM
Ooooo
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
Liu, Y., Zeng, H., Zhao, F. et al. A tiny Cambrian stem-mandibulate reveals independent evolution of limb tagmatization and specialization in early euarthropods. Sci Rep 15, 19115 (2025). doi.org/10.1038/s415...
A tiny Cambrian stem-mandibulate reveals independent evolution of limb tagmatization and specialization in early euarthropods - Scientific Reports
Scientific Reports - A tiny Cambrian stem-mandibulate reveals independent evolution of limb tagmatization and specialization in early euarthropods
doi.org
November 24, 2025 at 8:01 PM
Liu, Y., Zeng, H., Zhao, F. et al. A tiny Cambrian stem-mandibulate reveals independent evolution of limb tagmatization and specialization in early euarthropods. Sci Rep 15, 19115 (2025). doi.org/10.1038/s415...
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
Just to give you an example of how big they can get, here is a size chart. Acadoparadoxides is the 2nd to the left.
November 25, 2025 at 5:31 PM
Just to give you an example of how big they can get, here is a size chart. Acadoparadoxides is the 2nd to the left.
#TrilobiteTuesday
Here is part of the body of quite a large trilobite known as Paradoxides spinosus. This specimen comes from the Middle Cambrian (Drumian) Jince Formation from the Czech Republic. Paradoxides is one of the largest trilobites known from the Cambrian period.
Here is part of the body of quite a large trilobite known as Paradoxides spinosus. This specimen comes from the Middle Cambrian (Drumian) Jince Formation from the Czech Republic. Paradoxides is one of the largest trilobites known from the Cambrian period.
November 25, 2025 at 3:07 PM
#TrilobiteTuesday
Here is part of the body of quite a large trilobite known as Paradoxides spinosus. This specimen comes from the Middle Cambrian (Drumian) Jince Formation from the Czech Republic. Paradoxides is one of the largest trilobites known from the Cambrian period.
Here is part of the body of quite a large trilobite known as Paradoxides spinosus. This specimen comes from the Middle Cambrian (Drumian) Jince Formation from the Czech Republic. Paradoxides is one of the largest trilobites known from the Cambrian period.
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
Two miles of ice core on the shelf at our national ice core facility in Lakewood, Colorado. The WAIS Divide core from West Antarctica is a 3400m long (deepest US core, 2nd deepest ice core ever) 68,000 year old record of high resolution climate.
November 24, 2025 at 5:03 PM
Two miles of ice core on the shelf at our national ice core facility in Lakewood, Colorado. The WAIS Divide core from West Antarctica is a 3400m long (deepest US core, 2nd deepest ice core ever) 68,000 year old record of high resolution climate.
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
Happy Origin Day! Published OTD in 1859
November 24, 2025 at 1:34 PM
Happy Origin Day! Published OTD in 1859
Come on, it's cool!
November 22, 2025 at 7:48 PM
Come on, it's cool!
Probably not. They are other living animals today that eat fecal matter and live quite successfully.
November 22, 2025 at 7:47 PM
Probably not. They are other living animals today that eat fecal matter and live quite successfully.
It's usually referred to as an anal tube. But because of the length it is called called the anal chimney. They can be as long as the arms of the crinoid. Infact some of them evolved spines on the anal tubes so snail wouldn't eat their poo. 😊
November 22, 2025 at 5:05 PM
It's usually referred to as an anal tube. But because of the length it is called called the anal chimney. They can be as long as the arms of the crinoid. Infact some of them evolved spines on the anal tubes so snail wouldn't eat their poo. 😊
It's usually referred to as an anal tube. But because of the length it is called called the anal chimney. They can be as long as the arms of the crinoid.
November 22, 2025 at 5:04 PM
It's usually referred to as an anal tube. But because of the length it is called called the anal chimney. They can be as long as the arms of the crinoid.
No, those are Gryphae oysters.
November 22, 2025 at 1:28 PM
No, those are Gryphae oysters.
Way older than any dinosaur. This fossil is ~361 million years old.
November 22, 2025 at 1:25 PM
Way older than any dinosaur. This fossil is ~361 million years old.
Welcome back to #fossilfriday
Here is the crinoid Arthroacantha carpenteri with a Platycerid snail attached. These snails are Coprophagous which means they ate fecal matter. The snail would attached to the anal chimney of the crinoid and would feed on the waste.
Arkona Shale
Mid Devonian
Ontario
Here is the crinoid Arthroacantha carpenteri with a Platycerid snail attached. These snails are Coprophagous which means they ate fecal matter. The snail would attached to the anal chimney of the crinoid and would feed on the waste.
Arkona Shale
Mid Devonian
Ontario
November 22, 2025 at 2:33 AM
Welcome back to #fossilfriday
Here is the crinoid Arthroacantha carpenteri with a Platycerid snail attached. These snails are Coprophagous which means they ate fecal matter. The snail would attached to the anal chimney of the crinoid and would feed on the waste.
Arkona Shale
Mid Devonian
Ontario
Here is the crinoid Arthroacantha carpenteri with a Platycerid snail attached. These snails are Coprophagous which means they ate fecal matter. The snail would attached to the anal chimney of the crinoid and would feed on the waste.
Arkona Shale
Mid Devonian
Ontario
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
Spent some time in my prep room for some fossil therapy.
This is an Isotelus roller I found at Flat Run quarry near Mt. Orab, Ohio. I exposed most of the body and the genal (cheek) spine.
I can feel my back loosen up and stress melt away.
This is an Isotelus roller I found at Flat Run quarry near Mt. Orab, Ohio. I exposed most of the body and the genal (cheek) spine.
I can feel my back loosen up and stress melt away.
November 20, 2025 at 2:09 AM
Spent some time in my prep room for some fossil therapy.
This is an Isotelus roller I found at Flat Run quarry near Mt. Orab, Ohio. I exposed most of the body and the genal (cheek) spine.
I can feel my back loosen up and stress melt away.
This is an Isotelus roller I found at Flat Run quarry near Mt. Orab, Ohio. I exposed most of the body and the genal (cheek) spine.
I can feel my back loosen up and stress melt away.
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
"Quiet, piggy!"
November 19, 2025 at 8:33 AM
"Quiet, piggy!"
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
You know, I'm not good about #TrilobiteTuesday. They weren't a strength of the collection, unless you count a stupid number of Silica shale phacopids that probably aren't Phacops rana as labeled, but ... I am not a trilobite guy.
These are a couple of olenellids, famous as tectonic shear indicators
These are a couple of olenellids, famous as tectonic shear indicators
November 19, 2025 at 2:10 AM
You know, I'm not good about #TrilobiteTuesday. They weren't a strength of the collection, unless you count a stupid number of Silica shale phacopids that probably aren't Phacops rana as labeled, but ... I am not a trilobite guy.
These are a couple of olenellids, famous as tectonic shear indicators
These are a couple of olenellids, famous as tectonic shear indicators
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
This was my son's first complete trilobite - a goldbug!
This is a Triarthrus eatoni from the famous Ordovician Beecher's Bed of New York. This site preserves soft tissues like legs, gills and antennae with pyrite or fool's gold.
#TrilobiteTuesday
This is a Triarthrus eatoni from the famous Ordovician Beecher's Bed of New York. This site preserves soft tissues like legs, gills and antennae with pyrite or fool's gold.
#TrilobiteTuesday
November 19, 2025 at 1:24 AM
This was my son's first complete trilobite - a goldbug!
This is a Triarthrus eatoni from the famous Ordovician Beecher's Bed of New York. This site preserves soft tissues like legs, gills and antennae with pyrite or fool's gold.
#TrilobiteTuesday
This is a Triarthrus eatoni from the famous Ordovician Beecher's Bed of New York. This site preserves soft tissues like legs, gills and antennae with pyrite or fool's gold.
#TrilobiteTuesday
Welcome back to #trilobitetuesday
Here is a beautifully enrolled Dolomitized Calymene celebra from the Silurian (Wenlock) Joliet Dolomite from Grafton, Illinois.
Here is a beautifully enrolled Dolomitized Calymene celebra from the Silurian (Wenlock) Joliet Dolomite from Grafton, Illinois.
November 18, 2025 at 4:55 PM
Welcome back to #trilobitetuesday
Here is a beautifully enrolled Dolomitized Calymene celebra from the Silurian (Wenlock) Joliet Dolomite from Grafton, Illinois.
Here is a beautifully enrolled Dolomitized Calymene celebra from the Silurian (Wenlock) Joliet Dolomite from Grafton, Illinois.
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
I'm a simple man. Put me in a place with rocks and I'll love you forever. 🪨 💕
November 17, 2025 at 5:02 PM
I'm a simple man. Put me in a place with rocks and I'll love you forever. 🪨 💕
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
👀 tomorrow @ See Jurassic Right
Jurassic World: Chaos Theory season four drops next Thursday so keep your paws and claws on See Jurassic Right for something special. 🤭🤭🤭
podcasts.apple.com/us/podcast/s...
podcasts.apple.com/us/podcast/s...
November 16, 2025 at 7:16 PM
👀 tomorrow @ See Jurassic Right
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil) - Aureliano - The Anatomical Record - Wiley Online Library anatomypubs.onlinelibrary.wiley.com/doi/full/10....
Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)
Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis o...
anatomypubs.onlinelibrary.wiley.com
November 14, 2025 at 10:14 PM
Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil) - Aureliano - The Anatomical Record - Wiley Online Library anatomypubs.onlinelibrary.wiley.com/doi/full/10....
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
Mainstream palaeoart often seems lily-white in terms of the diversity of its contributors. But pieces of palaeoart that rank among the -MOST SEEN- works in the entire field were examples of black craftsmanship. This week came news on the passing of Garfield G. Minott (1966-2025)... cont
November 15, 2025 at 1:31 PM
Mainstream palaeoart often seems lily-white in terms of the diversity of its contributors. But pieces of palaeoart that rank among the -MOST SEEN- works in the entire field were examples of black craftsmanship. This week came news on the passing of Garfield G. Minott (1966-2025)... cont
Reposted by Cam Muskelly (Explorer of Deep Time ⏰ ⚒️)
Earliest oceanic tetrapod ecosystem reveals rapid complexification of Triassic marine communities | Science www.science.org/doi/10.1126/...
Earliest oceanic tetrapod ecosystem reveals rapid complexification of Triassic marine communities
Tetrapods invaded oceanic environments after the cataclysmic end-Permian mass extinction (EPME), with temnospondyl amphibian to reptile-dominated assemblages succeeding across the Early Triassic [~251...
www.science.org
November 15, 2025 at 3:43 AM
Earliest oceanic tetrapod ecosystem reveals rapid complexification of Triassic marine communities | Science www.science.org/doi/10.1126/...