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Eons: How Plankton Created a Bizarre Giant of the Seas

8 minutes 47 seconds

Now Playing As: Captioned (English) (change)

At more than 2 meters long, Aegirocassis was not only the biggest radiodont ever, but it also may have been the biggest animal in the Early Ordovician. This bizarre marine giant may have only been possible, thanks to a major revolution among some of the tiniest organisms in the world. Part of the "Eons" series.

Media Details

Runtime: 8 minutes 47 seconds

An illustration depicts the dinosaur, Coelophysis, with new born Coelophysis in between its beak.
Eons
Season 2 / Ep 32
10 minutes 37 seconds
Grade Level: 10 - 12
A painting depicts scientists comparing Piltdown Man's remains to other species. Charles Dawson and Sir Arthur Smith Woodward are seen standing together.
Eons
Season 2 / Ep 33
9 minutes 54 seconds
Grade Level: 10 - 12
ASL
An illustration depicts a pair of dinosaurs fighting each other.
Eons
Season 2 / Ep 34
8 minutes 35 seconds
Grade Level: 10 - 12
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An illustration depicts a bat flying in sky.
Eons
Season 2 / Ep 35
11 minutes 9 seconds
Grade Level: 10 - 12
An illustration depicts a pair of reptile like dinosaurs running in a desert. Image credit: Ceri Thomas.
Eons
Season 2 / Ep 36
8 minutes 33 seconds
Grade Level: 10 - 12
ASL
An illustration depicts an extinct animal, the Giant Lemur.
Eons
Season 2 / Ep 37
10 minutes 9 seconds
Grade Level: 10 - 12
ASL
An illustration depicts the earth of 50 million years ago, with a supercontinent Laurasia. Caption, Paleographic animation by C R Scotese.
Eons
Season 2 / Ep 38
11 minutes 3 seconds
Grade Level: 10 - 12
ASL
An illustration depicts a theropod dinosaur, looking into a nest with eggs and newborn dinosaurs.
Eons
Season 2 / Ep 39
7 minutes 28 seconds
Grade Level: 10 - 12
ASL
A skull from the fossils of Homo floresiensis, and a rough sketch of the limbs of the fossil remains are presented.
Eons
Season 2 / Ep 40
9 minutes 10 seconds
Grade Level: 10 - 12
ASL
The sculpture, of a dragon sprawled, at the steps of Kinh Thien palace. Caption: Remains of Kinh Thien Palace.
Eons
Season 2 / Ep 41
12 minutes 18 seconds
Grade Level: 10 - 12