A simply mind-blowing preparation of the skull of an American paddlefish, Polyodon spathula. In life the paddle-shaped snout is covered by thousands of electroreceptors that detect the swarms of zooplankton on which the paddlefish feeds.
A simply mind-blowing preparation of the skull of an American paddlefish, Polyodon spathula. In life the paddle-shaped snout is covered by thousands of electroreceptors that detect the swarms of zooplankton on which the paddlefish feeds.
When I started working on sauropods, I thought their vertebrae were cool but they were loaded with weird structures that I didn’t understand. Then I dissected my first ostrich neck and suddenly everything made sense: this was a muscle attachment, that was a pneumatic feature, this other thing was a ligament scar.
In a move that will surprise no-one who’s been paying attention, my and Matt’s presentation of vertebral orientation at the 1st Palaeo Virtual Congress is now up as a PeerJ preprint. Sadly, with the end of the conference period on 15th December, the page for my talk has been deleted, along with some interesting comments.
We all know what turkeys look like, right? Turns out that two thirds of that bird is a lie. Here’s a diagram produced for hunters on which part of the turkey to shoot.
If you were curious about the Wedel et al. presentation on the Snowmass Haplocanthosaurus at the 1st Palaeo Virtual Congress but didn’t attend the event, it is now preserved for posterity and freely available to the world as a PeerJ Preprint (as promised). Here’s the link.
Now that Matt and I have blogged various thoughts about how to orient vertebra (part 1, part 2, relevant digression 1, relevant digression 2, part 3) and presented a talk on the subject at the 1st Palaeontological Virtual Congress, it’s time for us to strike while the iron is hot and write the paper.
Click to embiggen. Trust me. Last year about this time I wrote: The museum I was thinking about more than any other when I wrote that is the Museum of Osteology in Oklahoma City. I don’t get there every year, but I stop in as often as possible, and I make it more years than not. And yet, looking back through the archives I see that almost all of my posts about the Museum of Osteology came in a brief flurry five years ago. Shameful!
Nothing really new here, not like a new skull recon or anything. The original version I did for Farke et al. (2014) had the jaw articulated and closed. Then in 2017 I posted a version with the lower jaw disarticulated. Obviously what was needed was one with the lower jaw articulated and open.
The 1st Palaeontological Virtual Congress is underway now, and will run through December 15. Mike and I have two presentations up: “What do we mean by the directions ‘cranial’ and ‘caudal’ on a vertebra?” by Mike and me, which consists of a video Mike made presenting a slide show that he put together.
Here’s a frozen pig head being hemisected with a band saw. The head in question, and the other bits we’ll get to later on in this post, both came from Jessie Atterholt’s Thanksgiving pig.
We’ve posted a lot here about how crazy the cervical vertebrae of apatosaurines are (for example: 1, 2, 3), and especially the redonkulosity of their cervical ribs.