Reposted
Welcome back to #FossilFriday!
Here is a Petoskey Stone which is Michigan's state stone. It is a colonial rugose coral known as Hexagonaria percarinata. This comes from the Middle Devonian (Givitian) Gravel Point Formation (Traverse Group). Each corallite that you see would have housed a polyp.
Here is a Petoskey Stone which is Michigan's state stone. It is a colonial rugose coral known as Hexagonaria percarinata. This comes from the Middle Devonian (Givitian) Gravel Point Formation (Traverse Group). Each corallite that you see would have housed a polyp.
December 5, 2025 at 3:52 PM
Welcome back to #FossilFriday!
Here is a Petoskey Stone which is Michigan's state stone. It is a colonial rugose coral known as Hexagonaria percarinata. This comes from the Middle Devonian (Givitian) Gravel Point Formation (Traverse Group). Each corallite that you see would have housed a polyp.
Here is a Petoskey Stone which is Michigan's state stone. It is a colonial rugose coral known as Hexagonaria percarinata. This comes from the Middle Devonian (Givitian) Gravel Point Formation (Traverse Group). Each corallite that you see would have housed a polyp.
Reposted
This is a rare crinoid from the Devonian Silica Shale of Sylvania, Ohio. Gennaeocrinus chilmanae is named after Ruth Chilman, who was one of the founding members of the Friends of the UMMP. She was also co-author of the FUMMP Silica book.
I wish I had met her.
#FossilFriday
I wish I had met her.
#FossilFriday
December 5, 2025 at 4:36 PM
This is a rare crinoid from the Devonian Silica Shale of Sylvania, Ohio. Gennaeocrinus chilmanae is named after Ruth Chilman, who was one of the founding members of the Friends of the UMMP. She was also co-author of the FUMMP Silica book.
I wish I had met her.
#FossilFriday
I wish I had met her.
#FossilFriday
Reposted
Brachiopods may look like clams, but have a different axis of symmetry and very different internal structures called lophophores. There are still brachiopods alive today, but they are rare.
This Paraspirifer bownockeri is from the Devonian Silica Shale of Sylvania, Ohio.
#FossilFriday
This Paraspirifer bownockeri is from the Devonian Silica Shale of Sylvania, Ohio.
#FossilFriday
December 5, 2025 at 4:50 PM
Brachiopods may look like clams, but have a different axis of symmetry and very different internal structures called lophophores. There are still brachiopods alive today, but they are rare.
This Paraspirifer bownockeri is from the Devonian Silica Shale of Sylvania, Ohio.
#FossilFriday
This Paraspirifer bownockeri is from the Devonian Silica Shale of Sylvania, Ohio.
#FossilFriday
Excited to find my first eurypterid (that I can talk about) for #FossilFriday. Silurian, can’t pin down the formation, but supposed to be Hughmilleria sp. Head on the left, tail on the right but there’s a blob of stuff in the bottom left/center I can’t make out. Any #eurypterid folks know?
December 5, 2025 at 11:50 PM
Excited to find my first eurypterid (that I can talk about) for #FossilFriday. Silurian, can’t pin down the formation, but supposed to be Hughmilleria sp. Head on the left, tail on the right but there’s a blob of stuff in the bottom left/center I can’t make out. Any #eurypterid folks know?
Reposted
One of the earliest large predatory eurypterids, Megalograptus, for #FossilFriday. Megalograptus is known from abundant - and very unusual - material from the Ordovician of #Ohio, affording an important insight into the morphology of this rather bizarre species. ⚒️🧪
December 5, 2025 at 11:07 PM
One of the earliest large predatory eurypterids, Megalograptus, for #FossilFriday. Megalograptus is known from abundant - and very unusual - material from the Ordovician of #Ohio, affording an important insight into the morphology of this rather bizarre species. ⚒️🧪
Iron staining on Ordovician bryozoan hash, next to a shell, really bad at deciphering brachiopod vs bivalve so we’ll leave it at shell…#FossilFriday
July 19, 2025 at 2:30 AM
Iron staining on Ordovician bryozoan hash, next to a shell, really bad at deciphering brachiopod vs bivalve so we’ll leave it at shell…#FossilFriday
Moody Ordovician brachs for this most holy of #FossilFriday
July 12, 2025 at 2:42 AM
Moody Ordovician brachs for this most holy of #FossilFriday
Look at how big that Devonian bivalve is! Extra #FossilFriday, this one was found outside Wardensville wv by Max
July 6, 2025 at 12:50 PM
Look at how big that Devonian bivalve is! Extra #FossilFriday, this one was found outside Wardensville wv by Max
Hey it’s #FossilFriday so how’s about this little Devonian gastropod you absolute sea snail?
July 4, 2025 at 9:07 PM
Hey it’s #FossilFriday so how’s about this little Devonian gastropod you absolute sea snail?
Late #FossilFriday came across the last pics I got to take of the holotype of Needmorella simoni before sending it off forever. It’s now more traveled than I am as it’s been to Australia and back to the US where it’s now chilling in the Smithsonian, something I wish I could say for myself
June 14, 2025 at 1:03 PM
Late #FossilFriday came across the last pics I got to take of the holotype of Needmorella simoni before sending it off forever. It’s now more traveled than I am as it’s been to Australia and back to the US where it’s now chilling in the Smithsonian, something I wish I could say for myself
Happy #TrilobiteTuesday from the mid Devonian of WV you filthy animals
June 10, 2025 at 7:20 PM
Happy #TrilobiteTuesday from the mid Devonian of WV you filthy animals
Late #FossilFriday from the early/mid Devonian, Kettneraspis head next to a goniatite.
June 7, 2025 at 1:34 PM
Late #FossilFriday from the early/mid Devonian, Kettneraspis head next to a goniatite.
Reposted
#FossilFriday‼️ 😲 Remarkably large (~20" or 50 cm) ammonite from an Alabama creek exposing Upper Cretaceous sediments. The specimen is still underwater in this photo (see tadpoles 🐸). Specimen @almnh.bsky.social. Discovered by George Martin. #paleontology #fossil #Alabama
May 23, 2025 at 9:39 AM
#FossilFriday‼️ 😲 Remarkably large (~20" or 50 cm) ammonite from an Alabama creek exposing Upper Cretaceous sediments. The specimen is still underwater in this photo (see tadpoles 🐸). Specimen @almnh.bsky.social. Discovered by George Martin. #paleontology #fossil #Alabama
Reposted
For #FossilFriday, a dramatically lit replica (epoxy-resin cast) of an Early Ordovician (~480 mya) sedimentary-rock surface from Portugal with abundant trilobite burrows. Replica was part of a traveling display put together by ichnologist Dolf Seliacher that he titled "Fossil Art." 🧪🪨⚒️
May 23, 2025 at 1:50 PM
For #FossilFriday, a dramatically lit replica (epoxy-resin cast) of an Early Ordovician (~480 mya) sedimentary-rock surface from Portugal with abundant trilobite burrows. Replica was part of a traveling display put together by ichnologist Dolf Seliacher that he titled "Fossil Art." 🧪🪨⚒️
Macro Devonian crinoids for this #FossilFriday from Maryland but don’t hold that against them
May 23, 2025 at 10:25 PM
Macro Devonian crinoids for this #FossilFriday from Maryland but don’t hold that against them
It’s late for a #FossilFriday and it’s been a while for me on here but I found this Devonian crinoid in a quarry with fossil friend Max the other week and was feeling pretty happy with it. When I spotted it only what you see to the right of the vertical crack was showing, very mud covered.
March 23, 2025 at 10:22 PM
It’s late for a #FossilFriday and it’s been a while for me on here but I found this Devonian crinoid in a quarry with fossil friend Max the other week and was feeling pretty happy with it. When I spotted it only what you see to the right of the vertical crack was showing, very mud covered.
Thats’s 10,000 for me by myself. For that you get the tail, the tail….the whole damned tail
January 30, 2025 at 2:06 AM
Thats’s 10,000 for me by myself. For that you get the tail, the tail….the whole damned tail
At the end of the day, are we all not pigs-in-a-blanket in a slowly warming oven of our own making? A delicious fate
January 25, 2025 at 10:09 PM
At the end of the day, are we all not pigs-in-a-blanket in a slowly warming oven of our own making? A delicious fate
LITHOSTROTIONELLA!!!!! State gem of my home, West Virginia. This is the piece that first got me into fossils as a kid when I found it in the Greenbrier river. #FossilFriday
January 25, 2025 at 12:08 AM
LITHOSTROTIONELLA!!!!! State gem of my home, West Virginia. This is the piece that first got me into fossils as a kid when I found it in the Greenbrier river. #FossilFriday
Missed the last #FossilFriday and #TrilobiteTuesday of the year but I’m using the first day of the new year to wish cast. Found this butt a couple years ago now in a place I always dig. It’s an undescribed odontopleurid. I’ve never found another piece. I WILL find more this year.
January 1, 2025 at 8:37 PM
Missed the last #FossilFriday and #TrilobiteTuesday of the year but I’m using the first day of the new year to wish cast. Found this butt a couple years ago now in a place I always dig. It’s an undescribed odontopleurid. I’ve never found another piece. I WILL find more this year.
Reposted
A sea scorpion fossils of Eurypterus tetragonophthalmus from Volyn-Podillya, Khmelnytskyi Oblast, Ukraine. These Silurian aged eurypterids are synonymous with the species Baltoeurypterus tetragonophthalmus. #FossilFriday
#eurypterid #fossil #paleontology #eurypterus #baltoeurypterus
#eurypterid #fossil #paleontology #eurypterus #baltoeurypterus
December 28, 2024 at 1:06 AM
A sea scorpion fossils of Eurypterus tetragonophthalmus from Volyn-Podillya, Khmelnytskyi Oblast, Ukraine. These Silurian aged eurypterids are synonymous with the species Baltoeurypterus tetragonophthalmus. #FossilFriday
#eurypterid #fossil #paleontology #eurypterus #baltoeurypterus
#eurypterid #fossil #paleontology #eurypterus #baltoeurypterus
Happy trilobite Tuesday
December 17, 2024 at 9:06 PM
Happy trilobite Tuesday
Alright one of these four partial mid Devonian trilobite thoraxes is not a Viaphacops. It’s a Needmorella simoni and if you’re a real fossil sicko like myself you’ll be able to spot it. Take a guess, sicko. Happy fossil Friday
December 13, 2024 at 9:27 PM
Alright one of these four partial mid Devonian trilobite thoraxes is not a Viaphacops. It’s a Needmorella simoni and if you’re a real fossil sicko like myself you’ll be able to spot it. Take a guess, sicko. Happy fossil Friday