Category Archives: Biological Comparison

Herbivores All the Way Down


Back in the 1980s and 1990s, a revolution in the way dinosaurs were conceived to have evolved occurred, in which a basal stock of croc-ish animals (this was during the “thecodont origin of … everything (?)” phase of archosaur relationship … Continue reading

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Facial Expressions


The various and many ways to make a “cheek,” and the various facial tissues for which we have primary (preserved remains) and secondary (inferred) evidence for, in fossil sauropsidans. (These images are CC-BY-ND-NC. Please don’t take them without permission.)

Posted in Art, Biological Comparison, Biology, Biomechanics, Paleobiology, Paleontology, Reconstruction | Tagged , , , , , , , | 6 Comments

A Mystery of Caenagnathidae


Some time ago, Michael Mortimer posted on his site the idea that the Dzharakuduk avian Kuszholia mengi might actually be an oviraptorosaur! The similarities in the vertebrae (based mostly on sacrals) were starling. But also convergent. Was it? The Dzharakuduk … Continue reading

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Shell Crushing Pterosaurs and Bad Posture


Small post here. This one is going to seem incomplete, the title a tease. It’s a premise for more things. But you’ll see where I’m going with this. This concerns the issues of how we look at pterosaurs when they’re … Continue reading

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Toothed Birds


It soars over the tossing waves on enormous, outspread wings. With nary a flap, the bird is soaring dynamically high above the ocean, its eyes scanning the sky around it and sea below. It may seem unremarkable to us today: … Continue reading

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A Short Piece on Piscivores – Not All The Same


So you think you know a piscivore if you saw one? Not so fast. Take a look: Piscivores come in a large array of sizes and morphologies. Not all have teeth. Some are slender-snouted, others broad. What mostly defines a … Continue reading

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The Journey of Banguela


The life of a pterosaur cannot be easy. Most occur in places where there is always a larger predator; even the giants Quetzalcoatlus and Hatzegopterus may have co-occurred with other predators that would have seen them as food. From hatching … Continue reading

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