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hugolee

Mystery fossil? (Or rock)n

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hugolee

Hi there! I found this specimen on a beach in north Florida (Amelia Island). The curve shape caught my eye, and the black surface changing to dark brown interior reminded me of fossil coloration. Any chance this is a fossilized tusk of some kind? Hopefully the photos are detailed enough. Many thanks!

 

 

image.jpeg

image.jpeg

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Peat Burns

This to me resembles a piece of dugong rib.  It looks very dense, and I think I see the typical rings in cross section.  Let's see what others have to say.

EDIT:  Upon further observation, I think it might be a bit too porous to be dugong rib?...

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Peat Burns

It may be that some areas of dugong rib exhibit porous character (all of my chunks are extremely dense and lack obvious pores).  Here is a thread and photo of another members find with similar characteristics to yours.

 

 

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Fishconner10

I think dugong I find tons in the Peace river and they look very similarIMG_0661.thumb.JPG.085867ab30b71b1f47c13f4b25b0cdbd.JPGthey come in all sizes the ones above were from walking a creek, I kept a ton more that size from that day 

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Ptychodus04

I can't help identify specifics but it is definitely bone. ^_^

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Vieira

It looks like Dugong rib to me.

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Herb

looks like dugong to me also

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hugolee

Had never heard of a dugong! Very cool. Thanks for the quick feedback, everyone. Any sense of how old it might be?

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Monica

Hi hugolee!

 

I have no idea as to the age of your fossil, but dugongs are still around today!  They are sometimes called "sea cows" and I think they live in the Pacific and Indian Oceans.

 

Nice find!

 

Monica

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RyanNREMTP

In simplest terms Dugongs are the salt water version of Manatees.

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Harry Pristis
6 hours ago, RyanNREMTP said:

In simplest terms Dugongs are the salt water version of Manatees.

 

Manatees are primarily saltwater denizens.  They retreat to freshwater springs in Florida for warmth in the winter.  The do well in either, as long as there is enough forage. 
 

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fifbrindacier

Cool find.:)

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ynot
9 hours ago, Monica said:

 I think they live in the Pacific and Indian Oceans.

Do not know about the indian ocean, but there are none in the pacific.

Most that I know of are in the caribbean and around Florida.

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Peat Burns

The Stellar's sea cow which was extirpated by humans (hunted to extinction) was from the Bering Sea between Alaska and Russia.

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ynot
6 hours ago, Peat Burns said:

The Stellar's sea cow which was extirpated by humans (hunted to extinction) was from the Bering Sea between Alaska and Russia.

Whoops, I missed one.:blush:

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Peat Burns
19 minutes ago, ynot said:

Whoops, I missed one.:blush:

Not technically :). .. the Stellar's went extinct prior to 1800 :(

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Monica
13 hours ago, ynot said:

Do not know about the indian ocean, but there are none in the pacific.

Most that I know of are in the caribbean and around Florida.

I think I recall that dugongs are found around Australia while manatees are found around Florida - I believe they are different species of the same family...

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Peat Burns
1 hour ago, Monica said:

I think I recall that dugongs are found around Australia while manatees are found around Florida - I believe they are different species of the same family...

You are right about the range of the extant dugong.  It looks like manatees are a different family, though (same order).

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Monica
2 hours ago, Peat Burns said:

You are right about the range of the extant dugong.  It looks like manatees are a different family, though (same order).

Cool - thanks for looking into it!

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fifbrindacier

The manatees (lamantin in french) are Sireniae Trichechidae found in Senegal, Carribean, Florida, Central America and Amazonia. Dugongs are Sireniae Dugongidae and live in west Pacific Ocean and Indian Ocean.

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