Turtle laminae of the Yale Peabody Museum

Here's a cool skeleton of the South American pleurodire Podocnemis in the Yale Peabody Museum.

{.aligncenter .size-full .wp-image-6410 loading="lazy" attachment-id="6410" permalink="http://svpow.com/2012/06/23/turtle-laminae-of-the-yale-peabody-museum/podocnemis-skeleton/" orig-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-skeleton.jpg" orig-size="1500,2000" comments-opened="1" image-meta="{"aperture":"2.8","credit":"","camera":"E4500","caption":"","created_timestamp":"-62169984000","copyright":"","focal_length":"10","iso":"100","shutter_speed":"0.089285714285714","title":""}" image-title="Podocnemis skeleton" image-description="" image-caption="" medium-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-skeleton.jpg?w=225" large-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-skeleton.jpg?w=768" width="480" height="640" srcset="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-skeleton.jpg?w=480&h=640 480w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-skeleton.jpg?w=960&h=1280 960w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-skeleton.jpg?w=113&h=150 113w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-skeleton.jpg?w=225&h=300 225w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-skeleton.jpg?w=768&h=1024 768w" sizes="(max-width: 480px) 100vw, 480px"}

What's that you're hiding in your neck, Podocnemis?

{.aligncenter .size-full .wp-image-6411 loading="lazy" attachment-id="6411" permalink="http://svpow.com/2012/06/23/turtle-laminae-of-the-yale-peabody-museum/podocnemis-laminae/" orig-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae.jpg" orig-size="2272,1704" comments-opened="1" image-meta="{"aperture":"5.1","credit":"","camera":"E4500","caption":"","created_timestamp":"-62169984000","copyright":"","focal_length":"32","iso":"212","shutter_speed":"0.25","title":""}" image-title="Podocnemis laminae" image-description="" image-caption="" medium-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae.jpg?w=300" large-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae.jpg?w=1024" width="480" height="360" srcset="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae.jpg?w=480&h=360 480w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae.jpg?w=960&h=720 960w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae.jpg?w=150&h=113 150w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae.jpg?w=300&h=225 300w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae.jpg?w=768&h=576 768w" sizes="(max-width: 480px) 100vw, 480px"}

Laminae! Here's a closeup:

{.aligncenter .size-full .wp-image-6412 loading="lazy" attachment-id="6412" permalink="http://svpow.com/2012/06/23/turtle-laminae-of-the-yale-peabody-museum/podocnemis-laminae-closeup/" orig-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae-closeup.jpg" orig-size="600,656" comments-opened="1" image-meta="{"aperture":"5.1","credit":"","camera":"E4500","caption":"","created_timestamp":"-62169984000","copyright":"","focal_length":"32","iso":"212","shutter_speed":"0.25","title":""}" image-title="Podocnemis laminae closeup" image-description="" image-caption="" medium-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae-closeup.jpg?w=274" large-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae-closeup.jpg?w=600" width="480" height="524" srcset="https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae-closeup.jpg?w=480&h=524 480w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae-closeup.jpg?w=137&h=150 137w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae-closeup.jpg?w=274&h=300 274w, https://svpow.wordpress.com/wp-content/uploads/2012/06/podocnemis-laminae-closeup.jpg 600w" sizes="(max-width: 480px) 100vw, 480px"}

The laminae run from the transverse processes to the prezygapophyses and the centrum, which I reckon makes them analogues of the PRDLs and ACDLs of sauropods.

{.aligncenter .size-full .wp-image-6413 loading="lazy" attachment-id="6413" permalink="http://svpow.com/2012/06/23/turtle-laminae-of-the-yale-peabody-museum/poor-neglected-archelon/" orig-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/poor-neglected-archelon.jpg" orig-size="1704,2272" comments-opened="1" image-meta="{"aperture":"2.6","credit":"","camera":"E4500","caption":"","created_timestamp":"-62169984000","copyright":"","focal_length":"7.85","iso":"213","shutter_speed":"0.23255813953488","title":""}" image-title="Poor neglected Archelon" image-description="" image-caption="" medium-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/poor-neglected-archelon.jpg?w=225" large-file="https://svpow.wordpress.com/wp-content/uploads/2012/06/poor-neglected-archelon.jpg?w=768" width="480" height="640" srcset="https://svpow.wordpress.com/wp-content/uploads/2012/06/poor-neglected-archelon.jpg?w=480&h=640 480w, https://svpow.wordpress.com/wp-content/uploads/2012/06/poor-neglected-archelon.jpg?w=960&h=1280 960w, https://svpow.wordpress.com/wp-content/uploads/2012/06/poor-neglected-archelon.jpg?w=113&h=150 113w, https://svpow.wordpress.com/wp-content/uploads/2012/06/poor-neglected-archelon.jpg?w=225&h=300 225w, https://svpow.wordpress.com/wp-content/uploads/2012/06/poor-neglected-archelon.jpg?w=768&h=1024 768w" sizes="(max-width: 480px) 100vw, 480px"}

As long as I'm posting on Peabody turtles, here's Archelon. It's not bad, if you're into that sort of thing. Which Mike clearly ain't, but for a good reason, which will be revealed soon.

For more info on vertebral laminae in extant non-dinosaurs, see this post and the lower left paragraph on page 212 of this paper.