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Friday, July 22, 2011

Neutral Poses & Elmerfuddasaurus

Here's a quick look at another kind of pose: the neutral pose, which is more or less the equivalent of the standard anatomical poses used for extant animals.  I'm actually quite fond of the unassuming aesthetic of this type of pose, but alas I suspect it isn't a good candidate for a pose to standardize on.  To see why let's take a quick look at the strengths and weaknesses of the approach:

Tuesday, July 19, 2011

Skeletal Poses: Do they matter?



Ok, first stop chortling.  Then take a good look at the handstand allosaur up there.  In several respects it's scientifically accurate - the bone outlines reflect the actual morphology of the fossils, and the proportions are correct, so it's a "realistic" skeletal reconstruction.  The pose is certainly unusual, but none of the joints are disarticulated.  In these respects it's better than many of the skeletals that appear in peer-reviewed journals.  Yet I think it's safe to say that most researchers would consider that allosaur to be in a biologically implausible position.

Do skeletal poses matter?  Is this pose just as good as any other, or are in fact some choices more useful?  After the break I'll try to make the case that choosing a pose is an important part of making a skeletal reconstruction, rather than a random after-thought.

Saturday, July 16, 2011

The Great Skeletal Repose of 2011


As many of you are no doubt aware, earlier this year paleontologist and scientific illustrator Greg Paul made a fairly public hubbub when (among other demands) he requested that all other illustrators stop using the skeletal poses he popularized the last several decades.  There was quite a bit of consternation over the issues he raised, filled with both sympathy (it's hard to make a living from paleoart) and skepticism (most people don't believe Greg has any legal basis to try and lay claim to an anatomical pose - I suspect those people are correct).

None the less, on March 8th of this year I wrote:
Allowing Greg (Paul) to establish a branding around the poses he popularized is a request I'm inclined to grant; after corresponding briefly with Greg I've decided to embark on the process of reposing my 100+ skeletal reconstructions.
That lead to a lot of questions.  I will be examining in greater detail skeletal poses and how we can make them as useful as possible, but first I wanted to address some of the common questions that came up from this.  Namely...
Friday, July 15, 2011

Schematic vs realistic skeletals: Follow up

I'm happy to say I've received some excellent feedback on the previous blog post on schematic skeletal diagrams. Several comments in particular share a similar feeling, which I'll repost here:

I don't see any reason someone would make a reconstruction more schematic than necessary (due to perspective, converting bones to lines, incompleteness or deformation, lack of available material, etc. that you mention). In the strat column and cell examples, there are obvious reasons not to make them realistic, but what about skeletons? Surely the only reason to not draw bones correctly is to save time, but in that case I'd argue it's better to not to include a reconstruction than to make a half-assed one. -Mickey Mortimer

This is a very.. charitable interpretation of what's going on. I agree that there is a place for schematics, but I think they should be made to look schematic (you see this sometimes, where bones are reduced to oblongs, and laid out in a vary schematic way). Just labelling skeletals as schematic will do little to stop artists using them I'm afraid. -John Conway

I would have to side with John on the matter of schematic representations. You write "When writing a professional paper, which one of these styles is "better" depends on the needs of the authors, the time, ability, and access to the data that the illustrator has, and a host of other practical concerns. Far be it from any of us to dictate that one type of skeletal diagram is suitable in all cases." But I can't see any way in which is schematic diagram is better than a realistic one. In short, surely the only reason to put up with the schematic is when the data just isn't there to do the job right? -Mike Taylor

As you can see, they all raise a similar question - why would anyone want to publish a a skeletal diagram that isn't realistic (or in some cases, "correct").  I suspect that they aren't the only ones with this question, so I thought it would be worth addressing the issue with its own post.  So let's start at the beginning....