Acanthodian Fishes and the Origins of Sharks – #365papers – 2018 – 10

Coates, Finarelli, Sansom, Andreev, Criswell, Tietjen, Rivers, La Riviere, 2018,  An early chondrichthyan and the evolutionary assembly of a shark body plan: Proceedings of the Royal Society B, v. 285, 20172418.

What’s it about?

Using modern tomographic techniques, the authors were able to examine the head and gill skeleton of a fossil fish called Gladbachus. The authors were able to see many characteristics that are both in common with acanthodian (so-called “spiny sharks”) and modern sharks.

Why does it matter?

In the past, the acanthodians and the modern sharks have been considered distinct groups. This research illustrates that the transition from acanthodian to true sharks, and that modern sharks evolved from acanthodians.

Why did I read this?

This paper caught my eye as something relevant for the coming semester, as I will be discussing the origins and evolution of modern fishes. It totally is going to be used in my class!

Published by paleololigo

Scientist (Paleontology, Geochemistry, Geology); Writer (Speculative and Science Fiction, plus technical and non-technical Science); Mom to great boy on the Autism spectrum; possessor of too many hobbies.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: