Here’s a cool comparo.

I have a new paper out in Acta Paleontologica Polonica, with Guillermo Windholz, Juan Porfiri, Domenica Dos Santos, and Flavio Bellardini, on the first CT scan of a pneumatic caudal vertebra of a rebbachisaurid: Windholz, G.J., Porfiri, J.D., Dos Santos, D., Bellardini, F., and Wedel, M.J. 2024.

Eoneophron, Parapropalaehoplophorus, Ia io, and friends The other day Mike wrote to me about the new Hell Creek oviraptorosaur Eoneophron (Atkins-Weltman et al. 2024), commenting that he liked the ‘eoneo’ — old new — part of the name. That sent me down a little etymological rabbit hole.

Just a quick post about the genesis of the Brachiosaurus rib paper (Taylor and Wedel 2023) that I wrote about at the very end of last year. Although this is in some respects a minor paper, I’m fond of it because it fell into place so quickly and easily.

As we’ve often observed, it’s a funny thing that incredibly well-known dinosaur specimens can sit around for decades, or for more than a century, before someone notices something fascinating about them. One lesson to learn from this is the importance of collections — their creation, maintenance and accessibility. Another is of course to always look at the fossils we see.

Let’s look again at Figure 7 of our recent paper on bifurcated cervical ribs in apatosaurines: {.size-full .wp-image-21519 aria-describedby=“caption-attachment-21519” loading=“lazy” attachment-id=“21519” permalink=“http://svpow.com/papers-by-sv-powsketeers/wedel-and-taylor-2023-on-bifurcated-cervical-ribs/figure-7-diplo-apato-muscle-comparison-2/” orig-file=“https://svpow.files.wordpress.com/2023/11/figure-7-diplo-apato-muscle-comparison.jpeg”

Back in the first post about our recent paper on bifurcated cervical ribs in apatosaurines, I noted: This has been much on my mind of late, especially as the majority of talks at SVPCA 2023 and many new papers involve numerical methods.

Last time I promised you exciting news about sauropod neck-muscle mass. Let none say that I do not fulfil covenents. And, as usual, when talking about sauropod neck muscle mass, I’m going to start by talking about bird legs.

I don’t remember now when I first noticed bifurcated cervical ribs in apatosaurines. I imagine 2016 at the latest, because on our Sauropocalypse that year Mike and I saw examples at both BYU and Dinosaur Journey.

Here are some cervical ribs of sauropods that show a spectrum of morphologies, from a low dorsal process that makes an obtuse angle with the shaft of the rib in Dicraeosaurus (upper right), to one that makes a right angle in Brontosaurus (center), to a prominent spike of bone in Apatosaurus (bottom left), to a […]