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minnbuckeye

ID on Devonian Echinoderm

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Heteromorph

Can’t help, but nice echinoid! Paleozoic forms are quite interesting. 

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TqB

I'm pretty sure that's a rugose button coral, something like Microcyclus - top left on this Treatise  page, also shown on this thread:

http://www.thefossilforum.com/index.php?/topic/75532-need-help-with-identification/

 

EDIT: Wrong I think - see post below... :D

 

5bc4ddb0a0e3b_ScreenShot2018-10-15at19_31_21.png.368657e94a0ad38e0dc8a947a7ff3fdb.png

 

 

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TqB
7 minutes ago, Manticocerasman said:

I am more inclined to think that it is a loose fragment of a crinoid calyx.

you can see simmilar parts on this picture: ( bottom left )

 

I believe you're right - that'll teach me to see corals everywhere! :blush:

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piranha
20 minutes ago, TqB said:

...that'll teach me to see corals everywhere! :blush:

 

 

I see trilobites everywhere... looky-smiley.gif?1292867633 ...sounds perfectly reasonable to me! :P

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TqB
22 minutes ago, piranha said:

 

 

I see trilobites everywhere... looky-smiley.gif?1292867633 ...sounds perfectly reasonable to me! :P

:D

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Herb

nice crinoid plate

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minnbuckeye

Is there a way to distinguish genus or species from a fragment of a crinoid calyx? And seeing pictures of crinoid calyxs on line, is the pointy thing in the middle indicative of a plate that attached to the stem??

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crinus

I think it is a Dolatocrinus fragment.

Joe

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fossilized6s
On 10/15/2018 at 1:10 PM, minnbuckeye said:

I was on a quarry hunt with our fossil club yesterday and noticed this 1 cm. specimen in a sandy/ shaley rock that had scattered cinoidal fragments in it. No one could ID it, so I am offering it up to the experts here on the forum to tell me what it is before I attempt prepping it. The quarry is Devonian, but I can not tell you more than that since this was found in a heap of stones, not from the wall itself.

 

thanks,

Mike

 

2018-10-15.thumb.jpg.b7b4e418f1405744e4f4323b8f1f248d.jpg

Hey Mike. What club do you belong to out there? I just went on the MAPS/CVRMS quarry trip last Sunday. Is that where you were? 

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minnbuckeye

@fossilized6s, yep, that's where it came from! CVRMS is the club I am in. Have always wondered if any forum members were involved in any of these clubs. Now I know at least one!!!! I make it to most of the quarry hunts here, so next time you are going to Klein or Conklin, let me know so I can say hello. Hey, maybe we already know each other. How was your finds?? I did score 3 likely whole trilos but each needs prep work to know for sure.

 

Happy Hunting

Mike

 

Out of curiosity, were you the one scouting for placoderms??

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minnbuckeye

@crinus, thanks for the likely ID. I was beginning to think it would remain without a name. I am getting a bit anal about IDs, something that has developed the more I hunt. Hopefully that is good.

 

found this image that matches very close:Dolatocrinus-triangulatus-crinoid-calyx-fossil-Thunder-Bay-Limestone-Alpena-Michigan-USA-Devonian-Period-bottom.jpg

Edited by minnbuckeye

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fossilized6s
2 hours ago, minnbuckeye said:

@fossilized6s, yep, that's where it came from! CVRMS is the club I am in. Have always wondered if any forum members were involved in any of these clubs. Now I know at least one!!!! I make it to most of the quarry hunts here, so next time you are going to Klein or Conklin, let me know so I can say hello. Hey, maybe we already know each other. How was your finds?? I did score 3 likely whole trilos but each needs prep work to know for sure.

 

Happy Hunting

Mike

 

Out of curiosity, were you the one scouting for placoderms??

I was. Tall younger guy with the beard. And i found one! Prep is going to be rough. The texture of the plating sticks very well to matrix. Lol....ugh. It's a nice size chunk though. About 5"x4". 

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minnbuckeye
10 minutes ago, fossilized6s said:

I was. Tall younger guy with the beard. And i found one! Prep is going to be rough. The texture of the plating sticks very well to matrix. Lol....ugh. It's a nice size chunk though. About 5"x4". 

 

@fossilized6s, though we did not meet, I was the one at the end of the day that helped your female friend knock some fossils out of the rock for her. You must have took all of her heavy hammers. LOL . I did tell her to visit the CVRM trips to Raymond quarry east of Waterloo. Unbelievable crystals everywhere! Fossils are not as common. But for you, I have found fish teeth and placoderm like material there. Watch for their trips. It is worth it. So different than Klein or Conklin.

 

 Mike

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abyssunder
On 10/15/2018 at 12:43 AM, minnbuckeye said:

Is there a way to distinguish genus or species from a fragment of a crinoid calyx? And seeing pictures of crinoid calyxs on line, is the pointy thing in the middle indicative of a plate that attached to the stem??

This might be helpful: R. V. Kesling & L. W. Mintz. 1963. Species of the crinoid Dolatocrinus from the Middle Devonian Dock Street Clay of Michigan. Contributions from the Museum Of Paleontology. VOL. XVIII, No. 5, pp. 67-100 .

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fossilized6s
10 hours ago, minnbuckeye said:

 

@fossilized6s, though we did not meet, I was the one at the end of the day that helped your female friend knock some fossils out of the rock for her. You must have took all of her heavy hammers. LOL . I did tell her to visit the CVRM trips to Raymond quarry east of Waterloo. Unbelievable crystals everywhere! Fossils are not as common. But for you, I have found fish teeth and placoderm like material there. Watch for their trips. It is worth it. So different than Klein or Conklin.

 

 Mike

Sounds interesting. I'll definitely be looking into it. 

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