Welcome back to another #TrilobiteTuesday
Here is Gerastos granulosos from the Middle Devonian (Eifelian) Mahder Basin of Morocco.
Here is Gerastos granulosos from the Middle Devonian (Eifelian) Mahder Basin of Morocco.
October 27, 2026 at 3:56 PM
Welcome back to another #TrilobiteTuesday
Here is Gerastos granulosos from the Middle Devonian (Eifelian) Mahder Basin of Morocco.
Here is Gerastos granulosos from the Middle Devonian (Eifelian) Mahder Basin of Morocco.
Here's a video of the same specimen showing the enrolled position and amazing schizochroal eyes.
#TrilobiteTuesday
#TrilobiteTuesday
October 28, 2026 at 12:27 AM
Here's a video of the same specimen showing the enrolled position and amazing schizochroal eyes.
#TrilobiteTuesday
#TrilobiteTuesday
This is my best New York Eldredgeops from the Devonian Windom Shale. It's enrolled, which is a defensive position. The soft tissue legs and antenna could hide inside the hard shell if it was attacked or buried in a storm event, similar to a modern day pillbug or roly-poly.
#TrilobiteTuesday
#TrilobiteTuesday
October 28, 2026 at 12:22 AM
This is my best New York Eldredgeops from the Devonian Windom Shale. It's enrolled, which is a defensive position. The soft tissue legs and antenna could hide inside the hard shell if it was attacked or buried in a storm event, similar to a modern day pillbug or roly-poly.
#TrilobiteTuesday
#TrilobiteTuesday
The New York Eldredgeops are typically jet black color.
The ones from Ohio are more chocolate brown. The ones from Oklahoma are caramel color.
Probably not very tasty though. 😁
#TrilobiteTuesday
The ones from Ohio are more chocolate brown. The ones from Oklahoma are caramel color.
Probably not very tasty though. 😁
#TrilobiteTuesday
October 28, 2026 at 2:29 AM
The New York Eldredgeops are typically jet black color.
The ones from Ohio are more chocolate brown. The ones from Oklahoma are caramel color.
Probably not very tasty though. 😁
#TrilobiteTuesday
The ones from Ohio are more chocolate brown. The ones from Oklahoma are caramel color.
Probably not very tasty though. 😁
#TrilobiteTuesday
Welcome back to another #TrilobiteTuesday
Here is a large cephalon of Bumastus graftonenesis. This specimen comes from the Silurian aged Joliet Dolomite in Grafton, Illinois. It has more of an alien appearance compared to other trilobites.
Here is a large cephalon of Bumastus graftonenesis. This specimen comes from the Silurian aged Joliet Dolomite in Grafton, Illinois. It has more of an alien appearance compared to other trilobites.
October 20, 2026 at 3:42 PM
Welcome back to another #TrilobiteTuesday
Here is a large cephalon of Bumastus graftonenesis. This specimen comes from the Silurian aged Joliet Dolomite in Grafton, Illinois. It has more of an alien appearance compared to other trilobites.
Here is a large cephalon of Bumastus graftonenesis. This specimen comes from the Silurian aged Joliet Dolomite in Grafton, Illinois. It has more of an alien appearance compared to other trilobites.
Welcome back to #TrilobiteTuesday
Here are two halves of Wujiajiania lyndassmithae. This specimen comes from the Upper Cambrian (Paibian) MaKay Group in Cranbrook of British Columbia, Canada.
Here are two halves of Wujiajiania lyndassmithae. This specimen comes from the Upper Cambrian (Paibian) MaKay Group in Cranbrook of British Columbia, Canada.
October 13, 2026 at 11:07 PM
Welcome back to #TrilobiteTuesday
Here are two halves of Wujiajiania lyndassmithae. This specimen comes from the Upper Cambrian (Paibian) MaKay Group in Cranbrook of British Columbia, Canada.
Here are two halves of Wujiajiania lyndassmithae. This specimen comes from the Upper Cambrian (Paibian) MaKay Group in Cranbrook of British Columbia, Canada.
Welcome back to another #TrilobiteTuesday
Here is a completely enrolled Ditomopyge scitula trilobite from the Upper Carboniferous (Pennsylvanian) Salesville Formation in Palo Pinto County, Texas.
Here is a completely enrolled Ditomopyge scitula trilobite from the Upper Carboniferous (Pennsylvanian) Salesville Formation in Palo Pinto County, Texas.
September 29, 2026 at 3:32 PM
Welcome back to another #TrilobiteTuesday
Here is a completely enrolled Ditomopyge scitula trilobite from the Upper Carboniferous (Pennsylvanian) Salesville Formation in Palo Pinto County, Texas.
Here is a completely enrolled Ditomopyge scitula trilobite from the Upper Carboniferous (Pennsylvanian) Salesville Formation in Palo Pinto County, Texas.
#TrilobiteTuesday Enrolled individual of Phacops rana from the Moroccan Devonian.
September 15, 2026 at 6:09 AM
#TrilobiteTuesday Enrolled individual of Phacops rana from the Moroccan Devonian.
Some exciting news for #TrilobiteTuesday
I've been nominated to be the Avocational Representative for the @paleosoc.bsky.social Council.
I will be a voice for fossil clubs and amateur collectors, connecting the academic community with the general public. I'm excited to work with everyone.
I've been nominated to be the Avocational Representative for the @paleosoc.bsky.social Council.
I will be a voice for fossil clubs and amateur collectors, connecting the academic community with the general public. I'm excited to work with everyone.
September 2, 2026 at 12:07 AM
Some exciting news for #TrilobiteTuesday
I've been nominated to be the Avocational Representative for the @paleosoc.bsky.social Council.
I will be a voice for fossil clubs and amateur collectors, connecting the academic community with the general public. I'm excited to work with everyone.
I've been nominated to be the Avocational Representative for the @paleosoc.bsky.social Council.
I will be a voice for fossil clubs and amateur collectors, connecting the academic community with the general public. I'm excited to work with everyone.
#TrilobiteTuesday This beautiful specimen of Ditymopgyge sp. is among the very last of the magnificent trilobite dynasty which survived the whole of the Paleozoic Era, only to succumb, as did most of life on earth, during the "Great Dying" at the end of the Permian Period.
September 1, 2026 at 4:10 PM
#TrilobiteTuesday This beautiful specimen of Ditymopgyge sp. is among the very last of the magnificent trilobite dynasty which survived the whole of the Paleozoic Era, only to succumb, as did most of life on earth, during the "Great Dying" at the end of the Permian Period.
For #TrilobiteTuesday, an illustration of the types of traces made by a trilobite resting underneath sediment, burrowing, & walking on a surface, with ichnogenera assigned to each trace fossil. Seen at the Penha Garcia Ichnological Park, a UNESCO Global Geopark in Portugal. 🧪🪨🐾
September 1, 2026 at 5:15 PM
For #TrilobiteTuesday, an illustration of the types of traces made by a trilobite resting underneath sediment, burrowing, & walking on a surface, with ichnogenera assigned to each trace fossil. Seen at the Penha Garcia Ichnological Park, a UNESCO Global Geopark in Portugal. 🧪🪨🐾
#TrilobiteTuesday sneaks up on ya ... ⚒️🧪
August 25, 2026 at 10:52 PM
#TrilobiteTuesday sneaks up on ya ... ⚒️🧪
Welcome back to #TrilobiteTuesday
Here is a massive pygidium from an undescribed Scutellid trilobite from the Lower Devonian rocks of Morocco. This would have been a monster trilobite if it was complete. The tail alone is about 3 inches across!
Here is a massive pygidium from an undescribed Scutellid trilobite from the Lower Devonian rocks of Morocco. This would have been a monster trilobite if it was complete. The tail alone is about 3 inches across!
August 18, 2026 at 9:11 PM
Welcome back to #TrilobiteTuesday
Here is a massive pygidium from an undescribed Scutellid trilobite from the Lower Devonian rocks of Morocco. This would have been a monster trilobite if it was complete. The tail alone is about 3 inches across!
Here is a massive pygidium from an undescribed Scutellid trilobite from the Lower Devonian rocks of Morocco. This would have been a monster trilobite if it was complete. The tail alone is about 3 inches across!
August 18, 2026 at 12:35 PM
Shared for #TrilobiteTuesday
A friend of mine also found this trilobite fossil. It’s over 400 million years old and still clearly preserved.
Lovely!
#trilobite #fossil #paleontology #geology
Lovely!
#trilobite #fossil #paleontology #geology
August 18, 2026 at 12:20 PM
Shared for #TrilobiteTuesday
Shared for #TrilobiteTuesday
Trilobite found by a friend near Alnif, Morocco.
This one is preserved with clear segmentation and typical body shape. I used the macro mode on my phone camera to capture the details.
#Fossils #Trilobite #Paleontology
This one is preserved with clear segmentation and typical body shape. I used the macro mode on my phone camera to capture the details.
#Fossils #Trilobite #Paleontology
August 18, 2026 at 12:20 PM
Shared for #TrilobiteTuesday
6/ Suggested hashtags to join on a Tuesday
#TuesdayTea
#BluePlaqueTuesday
#PostcardTuesday
#TrilobiteTuesday
#TwentiesTuesday
#RedTuesday
#FairyTaleTuesday
#TolkienTuesday / #TolkienTrewsday
6 of 11 #TuesdayHashtags
#TuesdayTea
#BluePlaqueTuesday
#PostcardTuesday
#TrilobiteTuesday
#TwentiesTuesday
#RedTuesday
#FairyTaleTuesday
#TolkienTuesday / #TolkienTrewsday
6 of 11 #TuesdayHashtags
August 18, 2026 at 7:32 AM
6/ Suggested hashtags to join on a Tuesday
#TuesdayTea
#BluePlaqueTuesday
#PostcardTuesday
#TrilobiteTuesday
#TwentiesTuesday
#RedTuesday
#FairyTaleTuesday
#TolkienTuesday / #TolkienTrewsday
6 of 11 #TuesdayHashtags
#TuesdayTea
#BluePlaqueTuesday
#PostcardTuesday
#TrilobiteTuesday
#TwentiesTuesday
#RedTuesday
#FairyTaleTuesday
#TolkienTuesday / #TolkienTrewsday
6 of 11 #TuesdayHashtags
Welcome back to #TrilobiteTuesday
Here is a beautifully enrolled Paciphacops campbelli from the Lower Devonian (Lochkovian) Bois D' Arc Formation in Bromide, Oklahoma.
Here is a beautifully enrolled Paciphacops campbelli from the Lower Devonian (Lochkovian) Bois D' Arc Formation in Bromide, Oklahoma.
August 11, 2026 at 8:42 PM
Welcome back to #TrilobiteTuesday
Here is a beautifully enrolled Paciphacops campbelli from the Lower Devonian (Lochkovian) Bois D' Arc Formation in Bromide, Oklahoma.
Here is a beautifully enrolled Paciphacops campbelli from the Lower Devonian (Lochkovian) Bois D' Arc Formation in Bromide, Oklahoma.
A 40 mm Asaphiscus wheeleri trilobite from the Cambrian Wheeler Shale of Utah. This specimen shows signs of predation on the left. The pygidium (tail) and one pleura (rib) were damaged and healed.
There is also a 5 mm Elrathia kingii at the bottom right.
#TrilobiteTuesday
There is also a 5 mm Elrathia kingii at the bottom right.
#TrilobiteTuesday
August 11, 2026 at 7:15 PM
A 40 mm Asaphiscus wheeleri trilobite from the Cambrian Wheeler Shale of Utah. This specimen shows signs of predation on the left. The pygidium (tail) and one pleura (rib) were damaged and healed.
There is also a 5 mm Elrathia kingii at the bottom right.
#TrilobiteTuesday
There is also a 5 mm Elrathia kingii at the bottom right.
#TrilobiteTuesday
Since I've been getting new followers from the #SciArt starter pack, I figured I should share some trilobite sketches for #TrilobiteTuesday.
Cryptolithus, Eldredgeops and Dicranurus trilobites from North America
Cryptolithus, Eldredgeops and Dicranurus trilobites from North America
August 11, 2026 at 9:02 PM
Since I've been getting new followers from the #SciArt starter pack, I figured I should share some trilobite sketches for #TrilobiteTuesday.
Cryptolithus, Eldredgeops and Dicranurus trilobites from North America
Cryptolithus, Eldredgeops and Dicranurus trilobites from North America
6/ Suggested hashtags to join on a Tuesday
#TuesdayTea
#BluePlaqueTuesday
#PostcardTuesday
#TrilobiteTuesday
#TwentiesTuesday
#RedTuesday
#FairyTaleTuesday
#TolkienTuesday / #TolkienTrewsday
6 of 11 #TuesdayHashtags
#TuesdayTea
#BluePlaqueTuesday
#PostcardTuesday
#TrilobiteTuesday
#TwentiesTuesday
#RedTuesday
#FairyTaleTuesday
#TolkienTuesday / #TolkienTrewsday
6 of 11 #TuesdayHashtags
August 11, 2026 at 6:48 AM
6/ Suggested hashtags to join on a Tuesday
#TuesdayTea
#BluePlaqueTuesday
#PostcardTuesday
#TrilobiteTuesday
#TwentiesTuesday
#RedTuesday
#FairyTaleTuesday
#TolkienTuesday / #TolkienTrewsday
6 of 11 #TuesdayHashtags
#TuesdayTea
#BluePlaqueTuesday
#PostcardTuesday
#TrilobiteTuesday
#TwentiesTuesday
#RedTuesday
#FairyTaleTuesday
#TolkienTuesday / #TolkienTrewsday
6 of 11 #TuesdayHashtags
Day 23 of the Fossil Advent Calendar is also #TrilobiteTuesday! Thysanopeltis speciosa was a trilobite that lived 389 million years ago during the Devonian period. This example was found in Morocco!
December 23, 2025 at 3:46 PM
Day 23 of the Fossil Advent Calendar is also #TrilobiteTuesday! Thysanopeltis speciosa was a trilobite that lived 389 million years ago during the Devonian period. This example was found in Morocco!
Another trilobite hides behind Door 16 of the Fossil Advent Calendar for #TrilobiteTuesday! Olenellus clarki lived around 512 million years ago during the Cambrian period, with this example found in California, USA.
December 16, 2025 at 2:36 PM
Another trilobite hides behind Door 16 of the Fossil Advent Calendar for #TrilobiteTuesday! Olenellus clarki lived around 512 million years ago during the Cambrian period, with this example found in California, USA.
Another #TrilobiteTuesday on the Fossil Advent Calendar means another trilobite behind door 9. This is a curious example I spotted at the museum, I have not been able to find much information about it, giving me yet another reason to go back for a visit!
December 9, 2025 at 2:39 PM
Another #TrilobiteTuesday on the Fossil Advent Calendar means another trilobite behind door 9. This is a curious example I spotted at the museum, I have not been able to find much information about it, giving me yet another reason to go back for a visit!
Day 2 of the Fossil Advent Calendar also falls on #TrilobiteTuesday, and luckily for us that’s exactly what we have behind Door 2! Psychopyge elegans was a trilobite from the Devonian Period, and this example was found in Morocco.
December 2, 2025 at 3:03 PM
Day 2 of the Fossil Advent Calendar also falls on #TrilobiteTuesday, and luckily for us that’s exactly what we have behind Door 2! Psychopyge elegans was a trilobite from the Devonian Period, and this example was found in Morocco.