They include fossil mastodon, mammoth, and walrus tusks ivory, modern walrus tusks and teeth ivory, coral, and amber.
(They; include; fossil mastodon, mammoth, and walrus tusks ivory, modern walrus tusks and teeth ivory, coral, and amber)
They
include
fossil mastodon, mammoth, and walrus tusks ivory, modern walrus tusks and teeth ivory, coral, and amber