Raised, burnt surface rings trace the point of entry of high-velocity projectiles; and the punctures are on only one side, consistent with a blast coming from a single direction.

Viewed under an electron microscope, the embedded fragments appear to have exploded inside the tusk and bone, say the researchers. Shards have cut little channels.

The sunken pieces are also magnetic, and tests show them to have a high iron-nickel content, but to be depleted in titanium.

The ratios of different types of atoms in the fragments meant it was most unlikely they had originated on Earth, the team told the AGU meeting.

Hmm - I wonder if they were alive when the event occured, or if the fragments rained down on their bones after they died...

I didn't clip it, but the article noted that there was some growth around the punctures, which means that the animals lived after the event occured.

Perhaps it was a localized event, like the leoniod showers. That long ago the leonoids may have been bigger in particulates. Today they usually burn up in the atmosphere but back then they may have been much bigger.

Whew! I thought you said great "Breasts" peppered.
My mistake.

Its ok, we ALL want to see Breasts