Browse Items (155 total)

Thumbnail of Fossilization Video

(no number) Preserved ivory varies widely in appearance from one site to the next, but the tusk itself can easily be mistaken for petrified wood because it forms concentric rings as the animal grows. Tusk fragments are generally thin, with a slight…

This chart shows the way geologic time is broken down into smaller spans of time called Eons, Eras, Periods, and Epochs. The top of the chart is current time, labeled as 0 Ma (0 years before present). The bottom of the chart represents the beginning…

Thumbnail for insect fossil video

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(no number) Mastodon teeth have higher pointier cusps than mammoth teeth.

(DSM #CH551) It is relatively rare to find a whole mastodon tooth, but fragments of teeth can be regularly found. Often time the cusps are preserved because they are covered in extremely hard enamel.

(no number)

(DSM #FQP107)

(DSM #1647)