Helicoprion gets all the love, but you know my favorite fossil ratfish? Edestus. Think of a shark-shaped fish about the size of a great white with jaws like pinking shears. 🧪
June 26, 2025 at 7:33 PM
Helicoprion gets all the love, but you know my favorite fossil ratfish? Edestus. Think of a shark-shaped fish about the size of a great white with jaws like pinking shears. 🧪
Interesting piece I saw at a show; an Edestus shark jaw with a growth of pyrite sun around it
March 21, 2026 at 10:06 PM
Interesting piece I saw at a show; an Edestus shark jaw with a growth of pyrite sun around it
The weird scissor-toothed shark, Edestus and straight-shelled ammonites.
Illustration for the forthcoming book. I don't know what the bubbles mean beyond the fact that I looks drawing them.
Illustration for the forthcoming book. I don't know what the bubbles mean beyond the fact that I looks drawing them.
April 7, 2025 at 3:37 PM
The weird scissor-toothed shark, Edestus and straight-shelled ammonites.
Illustration for the forthcoming book. I don't know what the bubbles mean beyond the fact that I looks drawing them.
Illustration for the forthcoming book. I don't know what the bubbles mean beyond the fact that I looks drawing them.
Shark Week
Day 7: Edestus
Day 7: Edestus
July 13, 2025 at 5:22 AM
Shark Week
Day 7: Edestus
Day 7: Edestus
pikaia, astraspis, edestus, eurypterus, haikouichthys, hybodus, climatius, stratodus, archelon, didazoon, skeemella.
not to scale
not to scale
April 6, 2026 at 5:17 AM
pikaia, astraspis, edestus, eurypterus, haikouichthys, hybodus, climatius, stratodus, archelon, didazoon, skeemella.
not to scale
not to scale
May 28, 2025 at 12:12 PM
Today is #FossilFriday and also Valentine's Day, so we've each selected a fossil that we love!
Edestus - the whorl toothed shark from near Huddersfield (📷GB3D type Fossils 🏛️ @britgeosurvey.bsky.social)
Edestus - the whorl toothed shark from near Huddersfield (📷GB3D type Fossils 🏛️ @britgeosurvey.bsky.social)
February 14, 2025 at 6:25 PM
Today is #FossilFriday and also Valentine's Day, so we've each selected a fossil that we love!
Edestus - the whorl toothed shark from near Huddersfield (📷GB3D type Fossils 🏛️ @britgeosurvey.bsky.social)
Edestus - the whorl toothed shark from near Huddersfield (📷GB3D type Fossils 🏛️ @britgeosurvey.bsky.social)
#PaleoAgainstAI
The AI 'docu' Jurassic Sharks.
A glimpse into a future in which AI, dumbed-down narration and the inclusion of talking heads for 'credibility' conspire to make scicomm lose credibility altogether.
(Left: real reconstructions; Right: on-screen AIGC)
threadreaderapp.com/thread/20826...
The AI 'docu' Jurassic Sharks.
A glimpse into a future in which AI, dumbed-down narration and the inclusion of talking heads for 'credibility' conspire to make scicomm lose credibility altogether.
(Left: real reconstructions; Right: on-screen AIGC)
threadreaderapp.com/thread/20826...
July 30, 2026 at 6:20 AM
#PaleoAgainstAI
The AI 'docu' Jurassic Sharks.
A glimpse into a future in which AI, dumbed-down narration and the inclusion of talking heads for 'credibility' conspire to make scicomm lose credibility altogether.
(Left: real reconstructions; Right: on-screen AIGC)
threadreaderapp.com/thread/20826...
The AI 'docu' Jurassic Sharks.
A glimpse into a future in which AI, dumbed-down narration and the inclusion of talking heads for 'credibility' conspire to make scicomm lose credibility altogether.
(Left: real reconstructions; Right: on-screen AIGC)
threadreaderapp.com/thread/20826...
Fossil Friday #238: Edestus heinrichi from St. David, IL #fossils #paleontology #FossilFriday #pennsylvanian #shark #sharktooth #edestusshark #illinois
www.esconi.org/esconi_earth...
www.esconi.org/esconi_earth...
November 9, 2024 at 2:49 AM
Fossil Friday #238: Edestus heinrichi from St. David, IL #fossils #paleontology #FossilFriday #pennsylvanian #shark #sharktooth #edestusshark #illinois
www.esconi.org/esconi_earth...
www.esconi.org/esconi_earth...
Fossil Friday #221: Edestus heinrichi Shark Tooth #fossils #paleontology #FossilFriday #pennsylvanian #shark #sharktooth #illinois #edestus #SharkWeek2024 #sharkweek
www.esconi.org/esconi_earth...
www.esconi.org/esconi_earth...
July 13, 2024 at 3:48 AM
Fossil Friday #221: Edestus heinrichi Shark Tooth #fossils #paleontology #FossilFriday #pennsylvanian #shark #sharktooth #illinois #edestus #SharkWeek2024 #sharkweek
www.esconi.org/esconi_earth...
www.esconi.org/esconi_earth...
Predator of the Carboniferous Edestus
February 2, 2026 at 10:49 AM
Predator of the Carboniferous Edestus
Day 12 The Edestus #Mermay #Mermay2026 #mermaid #digitalart #myart #art #characterdesign #originalcharacter
May 12, 2026 at 11:32 AM
Day 12 The Edestus #Mermay #Mermay2026 #mermaid #digitalart #myart #art #characterdesign #originalcharacter
In honor of this week's paper from a trio of recent UMMP PhDs, here's a pairing of fabulous Carboniferous stem chimaeras for #FossilFriday: Edestus and Akmonistion.
January 18, 2025 at 2:48 AM
In honor of this week's paper from a trio of recent UMMP PhDs, here's a pairing of fabulous Carboniferous stem chimaeras for #FossilFriday: Edestus and Akmonistion.
I find it funny that there is no such Pokémon for Edestus... you know, the pogger shark?
October 7, 2025 at 3:59 PM
I find it funny that there is no such Pokémon for Edestus... you know, the pogger shark?
Today's four random pieces of palaeoart:
Brian Choo's Edestus, Steve Kirk's Deinonychus and Tenontosaurus, @ppaleoartist.bsky.social's Megamastax, and Timothy Bradley's Plateosaurus!
Brian Choo's Edestus, Steve Kirk's Deinonychus and Tenontosaurus, @ppaleoartist.bsky.social's Megamastax, and Timothy Bradley's Plateosaurus!
August 27, 2026 at 9:34 AM
Today's four random pieces of palaeoart:
Brian Choo's Edestus, Steve Kirk's Deinonychus and Tenontosaurus, @ppaleoartist.bsky.social's Megamastax, and Timothy Bradley's Plateosaurus!
Brian Choo's Edestus, Steve Kirk's Deinonychus and Tenontosaurus, @ppaleoartist.bsky.social's Megamastax, and Timothy Bradley's Plateosaurus!
For #FossilFriday I wanted to showcase this Edestus tooth whorl from the Pennsylvanian/Late Carboniferous of Indiana. Edestus was a holocephalin fish (a group of cartilaginous fish that includes the modern rat fish) that would have had a tuniform body similar to lamnid sharks
January 17, 2025 at 11:02 PM
For #FossilFriday I wanted to showcase this Edestus tooth whorl from the Pennsylvanian/Late Carboniferous of Indiana. Edestus was a holocephalin fish (a group of cartilaginous fish that includes the modern rat fish) that would have had a tuniform body similar to lamnid sharks
Had a great time speaking to the Chicago/Great Lakes Chapter of the Explorers Club about the Midwest's remarkable fossil record of Paleozoic chondrichthyans. Gave me a chance to do some fun show-and-tell with a few casts from the UMMP collection.
August 31, 2025 at 10:42 PM
Had a great time speaking to the Chicago/Great Lakes Chapter of the Explorers Club about the Midwest's remarkable fossil record of Paleozoic chondrichthyans. Gave me a chance to do some fun show-and-tell with a few casts from the UMMP collection.
🧪Species: Edestus heinrichi
Similar to its more famous relative, Helicoprion, Edestus and other shark-like eugeneodonts did not lose their old teeth like true sharks. Instead, this strange animal continued to grow out its tooth whorls, increasing the number of crowns.
Similar to its more famous relative, Helicoprion, Edestus and other shark-like eugeneodonts did not lose their old teeth like true sharks. Instead, this strange animal continued to grow out its tooth whorls, increasing the number of crowns.
A Carboniferous chondrichthyan jaw of an Edestus heinrichi or scissor tooth shark from the Carbondale Formation in Jackson County, Illinois, USA. Often found in coal mines, these bizarre shark-like cartilaginous fish are also known as coal sharks. #FossilFriday
#shark #fossil #paleontology #edestus
#shark #fossil #paleontology #edestus
October 6, 2023 at 10:26 PM
🧪Species: Edestus heinrichi
Similar to its more famous relative, Helicoprion, Edestus and other shark-like eugeneodonts did not lose their old teeth like true sharks. Instead, this strange animal continued to grow out its tooth whorls, increasing the number of crowns.
Similar to its more famous relative, Helicoprion, Edestus and other shark-like eugeneodonts did not lose their old teeth like true sharks. Instead, this strange animal continued to grow out its tooth whorls, increasing the number of crowns.
- australovenator
- udanoceratops
- edestus
- squalodon
- udanoceratops
- edestus
- squalodon
October 31, 2024 at 9:54 AM
- australovenator
- udanoceratops
- edestus
- squalodon
- udanoceratops
- edestus
- squalodon
A Carboniferous chondrichthyan jaw of an Edestus heinrichi or scissor tooth shark from the Carbondale Formation in Jackson County, Illinois, USA. Often found in coal mines, these bizarre shark-like cartilaginous fish are also known as coal sharks. #FossilFriday
#shark #fossil #paleontology #edestus
#shark #fossil #paleontology #edestus
July 28, 2023 at 1:05 PM
A Carboniferous chondrichthyan jaw of an Edestus heinrichi or scissor tooth shark from the Carbondale Formation in Jackson County, Illinois, USA. Often found in coal mines, these bizarre shark-like cartilaginous fish are also known as coal sharks. #FossilFriday
#shark #fossil #paleontology #edestus
#shark #fossil #paleontology #edestus
Mermay day 28 Edestus, caught up again, This one reminded me of a Goblin Shark so i drew the mermaid part based on my Goblin Shark inspired OC #mermay #mermaysozoic
May 28, 2025 at 11:15 AM
Mermay day 28 Edestus, caught up again, This one reminded me of a Goblin Shark so i drew the mermaid part based on my Goblin Shark inspired OC #mermay #mermaysozoic
Not long until the Geology Rocks event @ncmme.bsky.social
Come along to meet Edestus - Huddersfield's mysterious ancient inhabitant!
How will you interpret this fossils? What was its function? Come by our stall to create your own reconstruction!
#FossilFriday
🏛️@britgeosurvey.bsky.social
📷 GB3D
Come along to meet Edestus - Huddersfield's mysterious ancient inhabitant!
How will you interpret this fossils? What was its function? Come by our stall to create your own reconstruction!
#FossilFriday
🏛️@britgeosurvey.bsky.social
📷 GB3D
April 18, 2025 at 9:03 PM
Not long until the Geology Rocks event @ncmme.bsky.social
Come along to meet Edestus - Huddersfield's mysterious ancient inhabitant!
How will you interpret this fossils? What was its function? Come by our stall to create your own reconstruction!
#FossilFriday
🏛️@britgeosurvey.bsky.social
📷 GB3D
Come along to meet Edestus - Huddersfield's mysterious ancient inhabitant!
How will you interpret this fossils? What was its function? Come by our stall to create your own reconstruction!
#FossilFriday
🏛️@britgeosurvey.bsky.social
📷 GB3D