what is this bone from?

Fish & Invertebrate sightings and descriptions, hosted by resident NWDC ID expert Janna Nichols (nwscubamom).
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Emilyrc
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what is this bone from?

Post by Emilyrc »

Last night at mukilteo a guy came up that found this interesting "bone"
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defied
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Re: what is this bone from?

Post by defied »

Bovine?

D
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Norris
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Re: what is this bone from?

Post by Norris »

Looks like a vertabrae from a cow or something.
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Emilyrc
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Re: what is this bone from?

Post by Emilyrc »

Possible partial seal humerus?
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CaptnJack
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Re: what is this bone from?

Post by CaptnJack »

Based on shape, its the lower (distal) end of a femur. The large groove is for the patella to track in. The broken end (facing the viewer in pic 2) was rounded off by wave action. I can't think of any marine mammals with a femur & patella structured for weight bearing like this. e.g. Whales have femurs but without a tibia they don't look anything like a land mammal femur. So based on size of the condyls (the rounded surfaces by your thumb in pic3) its probably a cow.

Generic mammalian land femur end
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Emilyrc
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Re: what is this bone from?

Post by Emilyrc »

I wonder who put it under the dock at mukilteo. Long way for a cow bone to travel.
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CaptnJack
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Re: what is this bone from?

Post by CaptnJack »

Emilyrc wrote:I wonder who put it under the dock at mukilteo. Long way for a cow bone to travel.
Possibly used as crab trap bait at one time, when there was meat on it. Or was some dog's bone.
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Grateful Diver
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Re: what is this bone from?

Post by Grateful Diver »

Emilyrc wrote:I wonder who put it under the dock at mukilteo. Long way for a cow bone to travel.
... not if it had meat on it when it got there ... crab bait, perhaps?

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