I intended for the next post to be a follow-up on the new paper describing the Dry Mesa Haplocanthosaurus, as I hinted/promised in the last post.

Normally I crop, rotate, and color balance every photo within an inch of its life, but right now I have a talk to polish, hence the as-shot quality here. See you in the future — the real near future if you’re attending the 2024 Tate summer conference, “The Jurassic: Death, Diversity, and Dinosaurs”.

Utahraptor is a “giant” dromaeosaurid from Utah, described by Kirkland et al. (1993). Famously, its existence was part of the reason that the people making Jurassic Park felt at liberty to make their “Velociraptor” individuals not only much bigger than the turkey-sized Velociraptor proper, but also than than sheep-sized Deinonychus.

Just to wash our mouths out after all the theropod-related unpleasantness yesterday: {.alignnone .size-full .wp-image-20548 loading=“lazy” attachment-id=“20548” permalink=“http://svpow.com/2022/12/04/heres-that-ventral-view-apatosaur-cervical-anaglyph-you-ordered/dscn1412-1413-big-bink-apatosaur-c7-ventral-anaglyph/” orig-file=“https://svpow.files.wordpress.com/2022/12/dscn1412-1413-big-bink-apatosaur-c7-ventral-anaglyph.jpeg”

What if I told you that when Matt was in BYU collections a while ago, he stumbled across a cervical vertebra — one labelled DM/90 CVR 3+4, say — that looked like this in anterior view?

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.

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I keep wishing there was a single place out there where I could look up Jensen’s old BYU specimen numbers for Supersaurus , Ultrasaurus and Dystylosaurus elements, and find the modern equivalents, or vice versa. Then I realised there’s no reason not to just make one. So here goes! The first column shows the specimen numbers as used in Jensen (1985), and last column contains Jensen’s own assignments except where noted.

One of the strange things about Jensen’s 1985 paper is that the abstract implies that he informally considered the Ultrasauros scapulocoracoid to be the type specimen.