Creodonts & The Absurdity of Extinction

I just fell down a rather wonderful rabbit hole. My tale begins with a book review, written by Ross Barnett, of Sabretooth (Mauricio Anton). Apart from instantly causing me to add the book to my "to buy" list, the article also briefly lists the various mammalian clades which have exhibited sabre teeth in the past. Amongst this list were those I had expected, such as machairodonts (e.g. the famous Smilodon) and the marsupial Thylacosmilus, but it also contained several I had never heard of. Most notably, it mentioned creodonts.

If I've ever come across creodonts before I wasn't paying much attention because these creatures are fascinating. As a group they are an early success story in the mammalian radiation that occurred at the ending of the Cretaceous, yet despite their broad range and varied niche placement they are now utterly gone. Whilst they may look akin to modern hyenas, cats and even bears, the creodonts are not closely related (or basal) to the carnivorans. They are their own unique, and now absent, thing.

I've always found the notion of entire clade extinction somewhat absurd. I remember first reading about the K/T event that signalled the extinction of the dinosaurs and, even at an age written in single figures, feeling that there was something inherently wrong with the narrative. I get how large, extinction level events cause biodiversity to crash, but the idea that such a wildly successful and diverse group of creatures would all succumb seemed silly. I must admit, then, that as I've aged it has been with increasing smugness that I've watched the consensus switch from "dinosaurs are extinct" to "non-bird dinosaurs are extinct". Frankly, at this point, I feel the old narrative should just be ignored. The K/T event knocked several wonderful animal groups on their respective heads, but the dinosaurs were not amongst them.

Still, though, the plesiosaurs, pliosaurs, ammonites and myriad pterosaur groups were all wiped out, amongst many, many others. Whole families, even genera, do go extinct, often with frightening rapidity when everything is considered. That still feels odd, plus more than a little disappointing, and I can now add creodonts to the list of groups which I would love to have had the chance to meet.

But my journey didn't stop there. Intrigued and fired up by the beautiful imagery of Sabretooth, I went hunting for palaeoart of creodonts. Unfortunately, I largely came back empty handed, but my wide Googling did lead me to discover a new blog to subscribe to: Into the Wonder. It's a loose connection to the subject I was after, but it's always fun to discover someone actively writing about developing fantasy lore and creature creation!

Plus, who knows? It took over a century for someone to realise the creodonts were not just another branch of Carnivora, which is a large enough group for some individuals to have only undergone cursory examination, so perhaps they actually aren't all gone. Maybe, just possibly, one day in the future, some slightly odd mustelid or squash-faced felid will turn out to be a creodont in hiding. Maybe that discovery will even answer questions about an unsolved riddle of folklore? It's possible... though it's probably also asking far too much...

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  • I just fell down a rather wonderful rabbit hole. My tale begins with a book review, written by Ross Barnett, of <em>Sabretooth</em> (Mauricio Anton). Apart from instantly causing me to add the book [&#8230;]
  • Murray Adcock.
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