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Jeff Hoppne

Any ideas? Gay Head Cliffs, Martha's Vineyard, MA

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Jeff Hoppne

 Found by a tribal member at the Gay Head Cliffs along the shoreline. The only suggestion I've heard so far is cycad. 

 

Any ideas?

 

(My photos are too large to insert more than one...I can create a link to more if wanted...)

IMG_20180529_213355712_LL.jpg

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Rockwood

Doesn't look like a plant fossil to me.

I'm afraid it may be a very symmetrical concretion. Possibly algal ?  

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KimTexan
42 minutes ago, Jeff Hoppne said:

My photos are too large to insert more than one...I can create a link to more if wanted...)

IMG_20180529_213355712_LL.jpg

I often have that problem. I email the photos to myself and when I click send it asks me what size I want to send the pics as. I pick whatever option is just below the 3.95 mb limit.

I am an amiture so I have no idea what it is. At first I thought it could be man made, but subtle clues on the bottom of the specimen lead me to believe it is not man made. 

There are holes on the bottom where it appears some of the convex shapes have fallen out and the hole appears to go through the rock.

It could still be a geologic form, but I am leaning towards a form of coral.

 

@ynot is really good at identifying geologic forms as well as many fossils. Maybe he has some insight.

 

More pics would be helpful.

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Rockwood
1 hour ago, Jeff Hoppne said:

 Found by a tribal member

Isn't there a legend having to do with a giant or giant's footprints associated with that area ?  :)

 

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Fossildude19

Seems to me that the round "bumps" are much to round for Cycad - their "bumps" are more diamond shaped. :( 

According to this website - there are/were Cretaceous plants found in the area - gymnospermopsida, and conifer cones. :headscratch: :shrug:

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Jeff Hoppne

I only really know the miocene 'green sands' where clams and crabs are common. 

 

Maybe it's just a concretion?

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Rockwood
7 minutes ago, Fossildude19 said:

According to this website

The cliffs have eroded a great deal since that time. The trail mentioned no longer exists, and the area is off limits to trespass. Please respect tribal laws.

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ynot

I would like to see more pictures from multiple angles of this item.

My thinking it is a fossil of some type, because I can not think of a non fossil rock that looks like this, with such geometrical features.

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Rockwood
8 minutes ago, ynot said:

I would like to see more pictures from multiple angles of this item.

My thinking it is a fossil of some type, because I can not think of a non fossil rock that looks like this, with such geometrical features.

What about a mold of a chondrichtian crusher tooth plate ?

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Scylla

Imprint of bubble wrap?:trilosurprise:

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WhodamanHD

Looks a bit like paleodictyon.

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ynot
2 hours ago, Jeff Hoppne said:

My photos are too large to insert more than one.

You can also add more pictures in the reply to thread box.

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Tidgy's Dad

Very interesting. 

Not sure what this is at all.

:popcorn:

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KimTexan

 

28 minutes ago, WhodamanHD said:

Looks a bit like paleodictyon.

Yes it does.

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KimTexan

Do both sides have the same pattern? Are all pics of the same side of the specimen?

 

Is there a pattern or texture on the surface of the bumps or is that the texture of the whole rock?

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Jeff Hoppne
1 hour ago, Rockwood said:

The cliffs have eroded a great deal since that time. The trail mentioned no longer exists, and the area is off limits to trespass. Please respect tribal laws.

You're right, and I never encourage hunting there. I work with many tribal members who have old collections and this was in one. Just curious for their sake, and hopefully it can go in the little museum at the cliffs.

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Auspex
1 hour ago, Rockwood said:

The cliffs have eroded a great deal since that time. The trail mentioned no longer exists, and the area is off limits to trespass. Please respect tribal laws.

It is stated that this was found by a tribal member, but it is still good that you clarify the restriction publicly.

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Auspex
38 minutes ago, WhodamanHD said:

Looks a bit like paleodictyon.

Kinda', but it lacks the hexagonal arrangement of paleodictyon.

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Jeff Hoppne
Just now, Auspex said:

It is stated that this was found by a tribal member, but it is still good that you clarify the restriction publicly.

You're right. Federal law prohibits tampering with the cliffs in any way.

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ynot

Thanks for the additional pictures. 

I would still like to see the other sides.

Regards,

Tony

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Auspex

Wow, I just tried to find the stratigraphy of Gay Head Cliffs...it's a real mashed-up train wreck!

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WhodamanHD
10 minutes ago, Auspex said:

Kinda', but it lacks the hexagonal arrangement of paleodictyon.

I’m no expert on the subject, but from what I’ve read on it the uniform hexagonal structure is not constant among all ichnospecies. Also this one is quite worn.

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Auspex
1 minute ago, WhodamanHD said:

I’m no expert on the subject, but from what I’ve read on it the uniform hexagonal structure is not constant among all ichnospecies. Also this one is quite worn.

I refer not to the shape of the bumps, but to their un-honeycomb-like arrangement.

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