Our thanks to Caldey, a dinosaur model collector and artist who sent into us an Everything Dinosaur Evolution T. rex drawing. Today, it is the fourth of October. This is a special day for fans of the “Tyrant Lizard King”. The American palaeontologist Henry Fairfield Osborn wrote the 1905 paper that named and scientifically described Tyrannosaurus rex. The paper was published on this day, a hundred and twenty years ago. At the time Osborn was president of the American Museum of Natural History (New York). The paper was published in the “Bulletin of the American Museum of Natural History”.
Happy 120th birthday T. rex!
The Everything Dinosaur Evolution T. rex Drawing by Caldey
Caldey sent into Everything Dinosaur a wonderful illustration of the soon to arrive, Everything Dinosaur Evolution T. rex figure. This unique, 1:33 scale figure is expected to arrive at our warehouse next month.

An illustration of the new Everything Dinosaur Evolution T. rex by Caldey. The young illustrator chose to use artist pens to make her drawing vibrant. Picture credit: Caldey.
Picture credit: Caldey
To pre-order the Everything Dinosaur Evolution Tyrannosaurus rex: Everything Dinosaur Evolution Tyrannosaurus Figures.
Caldey has depicted the theropod next to a small stream with a woodland in the background. The dinosaur has its head turned to face the viewer. Caldey chose to use artist pens to create her drawing. It is a vibrant illustration. Her eye for detail has enabled the young artist to depict the sophisticated colouration of the tyrannosaur model.
The Formal Description of Tyrannosaurus rex
On the fourth of October 1905, T. rex was formally named and scientifically described. Osborn named a second theropod specimen in the same paper. He named this dinosaur Dynamosaurus imperiosus. Fossils collected in 1900 from a location in Wyoming consisted of part of the jaw with some teeth, dorsal and cervical vertebrae, a hindlimb and elements from the pelvis. These fossils joined the vertebrate fossil collection of the London Natural History Museum in 1960. Ankylosaur plates were also ascribed to this theropod specimen. Osborn later realised that Dynamosaurus was synonymous with Tyrannosaurus rex.
The “Tyrant Lizard King” moniker had become established, and although Dynamosaurus was the first name stated in the paper, the binomial title Tyrannosaurus rex was here to stay.

Everything Dinosaur Evolution pre-orders are now available from Everything Dinosaur. Both the Collector’s and the Founder’s Edition are scheduled to arrive at the company’s warehouse in November (2025). Picture credit: Everything Dinosaur.
Picture credit: Everything Dinosaur
Our thanks to Caldey for her spectacular illustration. Her artwork is to be featured in the digital product passport for our new T. rex figure. After a hundred and twenty years, a Tyrannosaurus rex model enters a new era of retail with its own digital product passport. One day all dinosaur models will be made this way.
Thanks again Caldey for your beautiful dinosaur drawing.
The award-winning Everything Dinosaur website: Dinosaur and Prehistoric Animal Figures.
Leave A Comment