A 300 Million Year Old Civilization Existed on Earth: Audiobook
According to The Books Insider's catalog data, A 300 Million Year Old Civilization Existed on Earth runs 1.8 hours as an unabridged audiobook, narrated by Martin K. Ettington (about 1.2 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 1.8 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 4 days |
| 1 hour / day | 2 days |
| 2 hours / day | 1 day |
| 1 hour / day at 1.5× | 2 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 1.8 hours, it is shorter than 86% of the 7,179 World audiobooks in our catalog.
More narrated by Martin K. Ettington
Martin K. Ettington narrates 130 unabridged audiobooks in our catalog, 367 hours in all.
About as long, on the World shelf
154 World audiobooks in our catalog run within 10% of this length. The most popular on the store:
- On Tyranny: Twenty Lessons from the Twentieth Century
- The People Speak: American Voices, Some Famous, Some Little Known
- Narrative of the Captivity and Restoration of Mrs. Mary Rowlandson
- The Arabian Art of Taming and Training Wild and Vicious Horses
- Courage Is Contagious: And Other Reasons to Be Grateful for Michelle Obama
Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.
About this listen
A 300 Million Year Old Civilization Existed on Earth is an audiobook by Martin K. Ettington: a 1.8-hour unabridged recording, read by Martin K. Ettington, released February 6, 2022, on the World shelf.
The listen at a glance
- Length
- 1.8 hrs
- Narrated by
- Martin K. Ettington
- Released
- February 6, 2022
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- World
- ISBN
- 9781667942803
How to listen to A 300 Million Year Old Civilization Existed on Earth free
New members at audiobooks.com get three free audiobooks with the trial.
Separately, the store's catalog carries more than 10,000 audiobooks that are always free to stream.
Start listening freeQuestions listeners ask
How long is A 300 Million Year Old Civilization Existed on Earth as an audiobook?
A 300 Million Year Old Civilization Existed on Earth runs 1.8 hours unabridged. At 1.5× speed that drops to roughly 1.2 hours.
Is A 300 Million Year Old Civilization Existed on Earth free as an audiobook?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates A 300 Million Year Old Civilization Existed on Earth?
A 300 Million Year Old Civilization Existed on Earth is narrated by Martin K. Ettington.