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06/27/2025

Ep #87 Anvil Sharks, Lampreys & Ratfish with Head-Sprouting Teeth featuring Vertebrate Paleontologist Michael Coates

Ray and Dave explore jaws, fins and fossil fish while tracing the deep origins of vertebrate life with Dr. Michael Coates, Vertebrate Paleontologist and Chair of Organismal Biology and Anatomy Professor at the University of Chicago.

Ep #87 Anvil Sharks, Lampreys & Ratfish with Head-Sprouting Teeth featuring Vertebrate Paleontologist Michael Coates

Ep 87 Paleo Nerds with Dr. Michael Coates

LINKS

Earliest TEETH article
Mike Coates, Vertebrate Paleontologist, and Chair of Organismal Biology and Anatomy
The fossils of Suffolk Coast
Lamprey fossils rewrite vertebrate origins
The Coates Lab
The Bony Fishes
The Cartilaginous fishes
Cyclostomes: The jawless fishes
Acanthodians: The spiny Sharks
The First Vertebrates
The first Teeth
The origin of vertebrate teeth and Evolution of Sensory Exoskeletons Video
Tantalizing Tantalepis
Astraspids; The first armored jawless vertebrates
Fun to say, “Sacabambaspis” – The Ordovician Jawless fish referenced in the Alan Pradel Paleo Nerds Episode
John Long’s Materpiscis, the first evidence of an embryo
John Long’s Paleo Nerds episode
John Long’s paper on the origin of gnathostome internal fertilization
Ray Troll’s dream fish, the Ratfish
Helodus, mostly known only by its teeth
The Buzz Saw Shark – Helicoprion (3D interactive)
A Ratfish named Troll
A Ratfish Tenaculum on its forehead!
The business end of the Lamprey
Mazon Creek Fossil Beds
The Tully Monster
Conodonts – eel-like animals existing for 300 million years
Ostracoderms: Armored Jawless fishes
Gnathosomes – over 60,000 species of extant vertebrates, comprising 99% of all extant vertebrates
Heterostracans – extinct jawless fishes, some of the oldest vertebrates
Arandaspids – another old jawless fish
Galeaspids – extinct jawless fishes with a large opening on the dorsal surface of their head shield
Ostracoderms represent all armored jawless fishes
The Kellwasser Event – the major extinction in the Devonian
The Hangenberg Extinction event – last stage of the Devonian
You don’t want to swim with a Dunkleosteus
Tiktaalik – a very iconic lobed-finned fish/tetrapod
Acanthostega – one of the first vertebrates to have recognizable limbs
Harpagofututor – what the hell?
Michael Coates’ time travel destination: The Kirkton Quarry
Bearsden Fossil Quarry in Glasgow
Akmonistion or the Stethacanthus – The Anvil/Sail Shark
Michael’s mentor and collaborator, the enigmatic Stan Wood
Bear Gulch Limestone
Dr. Coates’ talk on science and wonder


MUSIC
Summertime by the Amish Robots
Taxi by the Amish Robots
Good to Feel by Patrick Troll
Seconds in a Lifetime by Russell Wodehouse
Garbo by Whiskey Class
Fossil Freeway by Ratfish Wranglers