How Big Were Bugs in Ancient Times?

Have you ever wondered how big bugs were in ancient times? Insects have been around for over 400 million years, evolving and adapting to various environmental changes. Let’s take a closer look at some of the largest bugs that roamed the earth during prehistoric times.

The Meganeuropsis

One of the most massive insects ever discovered was the Meganeuropsis. This prehistoric dragonfly had a wingspan of up to 28 inches, making it one of the largest flying insects known to man. It lived during the Carboniferous period, approximately 300 million years ago when oxygen levels in the atmosphere were much higher than today.

The Arthropleura

If you think modern-day centipedes are creepy, wait until you hear about their ancestor – The Arthropleura. This millipede-like creature was over 8 feet long and had a width of almost 1 meter. It lived during the Carboniferous period and primarily fed on decaying plant matter.

The Jaekelopterus

Another giant sea scorpion from the Silurian period that ruled the ancient seas was Jaekelopterus. It grew up to 8 feet long and is considered one of the largest arthropods ever discovered.

The Pulmonoscorpius kirktonensis

The Pulmonoscorpius kirktonensis is another large arthropod that lived during the Carboniferous period. It was a type of scorpion that grew up to two feet in length, making it one of the largest members of its class.


In conclusion, insects have come in all shapes and sizes throughout their evolution. Though some prehistoric bugs may seem terrifying by today’s standards, they played an essential role in the ecosystem of their time. Studying these ancient creatures can help us understand how life evolved and adapted to different environments over time.