Fun Fact Friday · Post a Day 2013/2014

Day 74. Fun Fact Friday: Vertebrate skeletons and skulls

While taking the online class about dinosaurs, I’ve learned many interesting facts. The class not only discusses dinosaurs but it also discusses animals in general to help the student gain a better understanding of the world. I’d like to share some of the knowledge I’ve received from this class. In this post I’m going to talk about skulls and vertebrae in relation to both animals and dinosaurs.

Dinosaurs are vertebrates. Vertebrates are creatures that have skulls and backbones.

Within the skull, there are openings where parts like the eyes and a nose can go. The opening for the eyes is called an orbit, while the opening for a nose is called a nares. All other openings are called fenestrae, which, when translated, means “window”. In a tyrannosaurus skull there are three fenestra beside the orbit and the nares: the antiorbital, the supratemporal, and the laterotemporal.

The other part of being a vertebrate is that the creature has a backbone made up of vertebrae. There are different kinds of vertebrae. The cervical vertebrae are vertebrae in the neck while dorsal vertebrae are those in the back. There is also sacral vertebrae that are the vertebrae in the hips. Tails are made of caudal vertebrae.

And there is a very quick overview of vertebrates and their bones! Now go out there and sound smart!

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