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Buicks and Dinosaurs March 28, 2013

Posted by intellectualgridiron in Pop Culture, Science.
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As a life-long Paleontology enthusiast, I feel compelled to give General Motors lots of credit for this creative commercial.  Remember that comic book and cartoon series “Cadillacs and Dinosaurs”?  Well, feast your eyes on the next-best thing:  Buicks and dinosaurs!

What caught my eye the first time I saw this commercial was not just the dinosaurs, but their species and size.  Yeah, they were big – really big, but just how big?  It obviously varies from genus/species to genus/species, but what interested yours truly was their depicted size in the commercial.  We science/engineering geeks are sticklers for accuracy, after all!

Start with the beginning.  The Stegosaurs parked next to the fire hydrant are accurate.  Stegosaurus armatus, for example, reached about 30 feet in maximum length, meaning that its likeness regarding shape and size in the commercial is well portrayed (S. stenops was not quite as long at 23 feet in max. length).  So far, so good!

At seconds 6 through 13, we feast our eyes on a massive Sauropod, massive even by the standards of the already-large species found within the infraorder.  My first guess was this was an outsized specimen of Apatosaurus (known by many as “Brontosaurus,”) which was indeed large at an average length of 75 feet.  But as big as it was, it is doubtful that its feet were almost as wide as the car itself, even if the Buick Encore is relatively small.  The photo below of a Apatosaur skeleton right next to a Diplodocus skeleton might give the reader a better reference of its average size, as one can see a couple of people standing behind it.

ApatosaursDiplodocus1

Apatosaurus in the near background, and Diplodocus in the foreground at the Carnegie Museum of Natural History in Pittsburgh; photo by author, Dec., 2010.

My guess regarding the large Sauropod depicted in the commercial in question is either an outsized specimen of Apatosaur (it was the overall shape of one, if not oversized), or, more plausibly, an Argentinosaurus, one of the largest dino species currently known to man.  This compilation of photos I snapped at the Fernbank Museum in Atlanta back in early 2009 should back up the validity of this educated guess.  The man ascending the staircase gives the reader an idea of its huge size.

ArgentinosaurusCompilation1

Argentinosaurus reconstructed as being pursued by a Giganotosaurus, a Carnosaur/Theropod even longer than T-rex! Photo by author, Fernbank Museum, Atlanta, Mar. 1, 2009.

Next up at seconds 14 through 16, the couple in the Encore are passing up a couple of Ceratopsians.  The initial impulse is to say “Triceratops,” which is entirely understood, given that he was the biggest and most famous of that suborder.  But the frills of these two fellows are way too squared for that to be Triceratops, so my educated guess is that these are slightly outsized Chasmosaurs, who also had three horns like their slightly larger cousin (most Ceratopsians just had one, on the nose), even though theirs were not as long as the larger species.

Meanwhile (“…back in the jungle!”), as the camera gives us the vantage point of seeing through the windshield from the backseat, we see more Stegosaurs and Sauropods moving along the boulevard during seconds 17 through 19, and then the car has to maneuver around another large Sauropod (possibly a slightly-outsized Apatosaur, if not another Argentinosaur), before eventually pulling into a hotel entrance next to another Stegosaur to cap off the commercial.  Here the Stegosaurs is depicted a bit larger than its maximum size, unless the roof in front of the hotel desk had a very low clearance of 13 feet or less, as that was S. armatus’ maximum height, plates included.  The Stego tail and spikes in the background during seconds 27 through 29, however, are sadly way oversized.  The spikes in question would reach about three feet at the most.

Something else that gave cause for notice is that all the dino species depicted in this GM commercial are plant eaters.  So what, right?  The significance of this selection of species was that these are thought by many – though by no means all – scientists to be cold-blooded, or at least homoethermic, whereby they were big enough to maintain their own temperatures.  But put these two things together, and these species would be, on average, on the slower scale of dino agility, particularly when compared to their potentially hot-blooded Theropod predators.*  What it boils down to is a  “big-and-slow” versus “small-and-nimble” comparison that GM implicitly makes in this advertisement.

One must analyze these sizes with the perspective that these are all computer-generated, and as such, when superimposed into a real-world setting, it’s difficult to get the relative size proportions correct, especially when these objects are in constant motions and audience viewing angles are constantly shifting.  Still, while most shown sizes are a tad exaggerated, some were dead-on, and overall, the effort is quite laudable, as the commercial certainly piqued my interest, and hopefully those of millions of other viewers!

*The cold-blooded/warm-blooded dinosaur debate has been brought up before in a previous article and shall surely be revisited again.

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