BHI Catalog:  Dinosaurs & Birds:  Avian Theropods

  Avian Theropods

Birds have been around for about 150 million years. Although birds and theropod dinosaurs have many characteristics in common, their relationship to each other has been hotly contested. They both possess a one way respiratory system, and (we now know) a similar sized genome. In a recent study, a Harvard University team was able to estimate the cell sizes and, consequently, the genome size of theropod dinosaurs. What they discovered is that theropod dinosaurs such as Tyrannosaurus rex and Velociraptor had a genome size in the range of modern birds, therefore establishing an evolutionary link between birds and Theropod dinosaurs.

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Archaeopteryx lithographica Skeleton - Fossil Replica
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Archaeopteryx lithographica Skeleton - Fossil Replica   
BHI #126723

The most accurate three dimensional Archaeopteryx skeleton ever produced!

Our price: $4,750.00
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Hesperornis gracilis Skeleton - Fossil Replica
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Hesperornis gracilis Skeleton - Fossil Replica   
BHI #126435

A predatory flightless, toothed marine bird from the Cretaceous.

Starting price: $4,800.00
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Paleospheniscus sp. Skeleton - Fossil Replica
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Paleospheniscus sp. Skeleton - Fossil Replica   
BHI #126436

Active, diving penguin from the Early Pliocene.

Our price: $4,500.00
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