DINOSAURICON K

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K

  • Kaatedocus   Kaatedocus  /  A new taxon of diplodocid sauropod Kaatedocus siberi gen. et sp. nov., Kaatedocus siberi gen. et sp. nov., is recognized based on well-preserved cervical vertebrae and skull from the Morrison Formation (Kimmeridgian, Late Jurassic) of northern Wyoming, USA. A phylogenetic analysis places it inside Diplodocinae (Sauropoda, Flagellicaudata), as a sister taxon to a clade uniting Tornieria africana and the classical diplodocines Barosaurus lentus and Diplodocus. The taxon is diagnosed by a unique combination of plesiomorphic and derived traits, as well as the following unambiguous autapomorphies within Diplodocidae: frontal separated anteriorly by a U-shaped notch; squamosals restricted to the post-orbital region; presence of a postorbital foramen, a narrow sharp and distinct sagittal nuchal crest; the paired basal tuber with a straight anterior edge in ventral view; anterior end of the prezygapophyses of mid- and posterior cervical vertebrae is often an anterior extension of…

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Ernst Stromer and the lost Dinosaurs of Egypt.

Letters from Gondwana.

 Ernst Freiherr Stromer von Reichenbach. From Wikimedia Commons Ernst Freiherr Stromer von Reichenbach. From Wikimedia Commons

Ernst Freiherr Stromer von Reichenbach was born in Germany on June 12, 1870. In 1893, he began to study geology and paleontology at the University of Munich and wrote his thesis about the geology of the German colonies in Africa, under the direction of Karl Alfred von Zittel.

He later became a vertebrate paleontologist at the Paläontologisches Museum in Munich and an expert on fossil fish and mammals. But I was not until 1901 that he travelled to Africa, more specifically to El Fayum, a fossiliferous location discovered by George August Schweinfurth, a German botanist. The place contains fossil mammals from the Eocene-Oligocene boundary. Supported by the Bavarian Academy of Sciences and Humanities (Bayerische Akademie der Wissenschaften), he conducted a second expedition in 1902.

Bahariya Oasis. Bahariya Oasis.

In 1910, E. Stromer went to his  third paleontological expedition to Egypt. He arrived to Alexandria on November 7…

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Berlin Sauropods

Dave Hone's Archosaur Musings

IMG_0926

As briefly mentioned before, I’m just back from a week long trip to Berlin and the Museum fur Naturkunde (better, but now incorrectly known as the Humboldt museum). The last time I was there was around 2007 and the main dinosaur hall was empty with the material having been taken apart for remounting. So while I was there to dig into the collections and check out the material available, it was a chance to see how the new exhibits (plenty more than the dinosaurs have been done) look. I’ll stretch it out a little and break this up into various small slots covering different aspects of the exhibits and first off let’s not sidestep the obvious – they have a full sized, mostly real bone, mounted Giraffatitan. Yes this is a far from tiny mount, it’s absolutely colossal and that’s most apparent when you see that it’s next to

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Giraffatitan skull photos

Sauropod Vertebra Picture of the Week

Giraffatitan skull left lateral

Let it never be said that we don’t take good care of our commenters. Heck, we’ll even degrade ourselves by blogging about theropods, if that’s what it takes to keep you all happy.

Giraffatitan skull left anterolateral Derp dah durr

Today’s post is a response to this comment by Dean, asking for lateral view photos of the skull of Giraffatitan. Mike and I did get to spend some quality time with the T1 skull (a.k.a. “Old Toilet-Face”) when we were in Berlin in 2008.

Giraffatitan skull anterior

Unfortunately, most of our photos turned out not-so-hot. The room around the skull was not large, so we couldn’t get back very far from it. Hence our photos are plagued by perspective distortions.

Giraffatitan skull right anterolateral Ah hurr hurr hurr

Also, we didn’t have a tripod along and the light level was fairly low, and the combination of handheld shots and long exposure times meant that most of the shots…

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