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African Brachiosaur by *shartman:iconshartman:

Categories Digital Art > Drawings > Illustrations > Technical

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©2009 *shartman
:iconshartman:

Artist's Comments

The animal variously known as Brachiosaursus brancai and/or Giraffatitan brancai by various authors. I've been wrestling with some pedal morph that is not unique to Brachiosaurus, but I've finally hit the tipping point and will probably rework all of my sauropods (including possibly this one for a third time) to incorporate it. That's why there is no rigorous version here (I don't want to keep redoing it also) but between the specimens in Berlin around 2/3 of the animal is known.

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:iconparabuteo78:
*Parabuteo78 May 22, 2009, 11:06:18 AM
Nice work, as always!
My favorite dinosaur. Would love to see the re-worked version ;-)

--
"Remember who you are"

Constructive Criticism Welcomed!

Member of Traditional Artists , The Snaffle Club and #GimmeFeedback
:iconsteveoc86:
~Steveoc86 May 22, 2009, 11:56:39 AM
Great work. The pedal comment I asume refers to the metatarsals. They are at more of an angle than what you usually do. whats the thinking behind that?
:iconshartman:
*shartman May 22, 2009, 3:02:31 PM
You are correct sir! The reasons why would require a small paper or a generous blog; as it turns out the data will probably end up in both places, but that means a bit of waiting atm I'm afraid.
:icondinomaniac:
~Dinomaniac May 23, 2009, 5:34:15 AM
Cool!
Not sure what to think of the metatarsus though. To me it looks bit off considering the step cycle. Also considering that the limbs are otherwise graviportal and then there's sudden kink when you come to metatarsus. To me it seems a bit inefficient way to distribute weight.
Then again I have never seen you make modifications to skeletal posture without good reason so I guess it's just another W4TP moment. :)

I wonder if this has something to do with sauropod pes track length observations, considering that putting the metatarsus in such angle would give some extra length to the footprint.
:iconshartman:
*shartman May 23, 2009, 12:13:02 PM
If you want to prepare mentally, check out the angle data for elephants in the last few papers by Hutchinson (et al). It seems counter-intuitive, but graviportal mammals actually have their ankles flexed _more_ than I've illustrated throughout the walk cycle.

I have honestly been working over this issue for more than a year...in part because I don't want to redraw all of those damned sauropods without a really good reason. But there are several lives of converging evidence that I can't continue to ignore.
:iconahrkeath:
~Ahrkeath May 23, 2009, 4:26:22 PM
It actually looks like it has more solid footing with the repositioned metatarsus, so it doesn't seem unnatural to me.

And a lovely reconstruction as usual. ^^

--
...I've got nothing...
:iconemperordinobot:
~EmperorDinobot May 25, 2009, 1:07:49 AM
YESS!!! A non horizontal neck brachiosaurus. Just like it's supposed to be!
:iconshartman:
*shartman May 25, 2009, 1:11:26 PM
Thank you, although "supposed to be" has to be determined by the osteology ;)

Interestingly, on several upright-necked sauropods (brachiosaurs, "Mamenchisaurus" youngi, etc.) I don't disagree so much with Kent Steven's vertebral reconstructions as I do with how the rest of the animal goes together (and how that effects the angle of the vertebral column. This WILL be in an upcoming paper.
:iconztwarmstrong:
~ztwarmstrong Jun 1, 2009, 1:40:59 PM
What do you think of the new Taylor et. al (2009) paper on sauropod necks and how it relates to sauropod neck posture?
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