No, not his new Brachiosaurus humerus — his photograph of the Chicago Brachiosaurus mount, which he cut out and cleaned up seven years ago: {.alignnone .size-full .wp-image-8757 loading=“lazy” attachment-id=“8757” permalink=“http://svpow.com/2013/08/30/heres-that-brachiosaurus-altithorax-skeleton-you-ordered/fmnh-brachiosaurus-mount-lateral/”

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Last May I was out in the Salt Wash member of the Morrison Formation with Brian Engh and Thuat Tran, for just a couple of days of prospecting. We’d had crappy weather, with rain and lots of gnats.

If you’re thinking that it’s about time to look at some sauropod vertebrae from the Salt Wash member of the Morrison Formation, well, you’re gol-durned right, pardner. Let’s ride.

In the last post, we looked at some sauropod vertebrae exposed in cross-section at our field sites in the Salt Wash member of the Morrison Formation. This time, we’re going to do it again! Let’s look at another of my faves from the field, with Thuat Tran’s hand for scale.

Because I’ve worked a lot on the anatomy and evolution of air-filled bones in sauropod dinosaurs, I’ve spent most of my career looking at images like this: {.wp-image-17072 .size-large aria-describedby=“caption-attachment-17072” loading=“lazy” attachment-id=“17072” permalink=“http://svpow.com/2020/01/28/natures-ct-machine/apatosaurus-cervical-ct-wedel-2003b-fig-5/”

Heinrich Mallison sent me this amazing photo, which he found unattributed on Facebook: {.alignnone .size-full .wp-image-17034 loading=“lazy” attachment-id=“17034” permalink=“http://svpow.com/2020/01/27/shoebills-lie-and-its-disgusting/facebook_1579720176756/” orig-file=“https://svpow.files.wordpress.com/2020/01/facebook_1579720176756.jpg” orig-size=“1080,1093” comments-opened=“1”

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This isn’t new to science, it’s just one of the cool little quirks of human and comparative anatomy that more people should be aware of. Quick-quick background: autonomic (unconscious, involuntary) innervation of the body comes in two flavors, sympathetic and parasympathetic. Sympathetic nerves mostly handle the fight-or-flight response, parasympathetics are feed-breed-and-read.