ByronNWT Posted March 25, 2020 Share Posted March 25, 2020 Found on blackstone river NWT Canada. Not sure what formation it is but its either devonian or cretaceous nothing between. My best guess is Fort Simpson formation so late devonian. Link to comment Share on other sites More sharing options...
ByronNWT Posted March 25, 2020 Author Share Posted March 25, 2020 Link to comment Share on other sites More sharing options...
ByronNWT Posted March 25, 2020 Author Share Posted March 25, 2020 Small piles about 4cm long. Link to comment Share on other sites More sharing options...
ByronNWT Posted March 25, 2020 Author Share Posted March 25, 2020 Full rock. It has many strange things on it i have never seen anywhere else in area. Link to comment Share on other sites More sharing options...
ByronNWT Posted March 25, 2020 Author Share Posted March 25, 2020 Betterish Link to comment Share on other sites More sharing options...
Rockwood Posted March 25, 2020 Share Posted March 25, 2020 I can't really come up with a guess better than crinoid pieces of some sort. Link to comment Share on other sites More sharing options...
Jasperfossils Posted March 25, 2020 Share Posted March 25, 2020 I don’t see a crinoid in this, crinoids are geometrically divided in 5 sides, because it is an echinoderm. Crinoid discs can be round, five-sides and star shaped but, you can see a star shape just like sea urchins if they are not very damaged. Those on your photo are six sided, so it can never be an echinoderm. Link to comment Share on other sites More sharing options...
ByronNWT Posted March 25, 2020 Author Share Posted March 25, 2020 I know thats why i was intrigued/confused as to what this is. Link to comment Share on other sites More sharing options...
ByronNWT Posted March 25, 2020 Author Share Posted March 25, 2020 Could they be parts of a crinoid cup crushed? I think there are parts of cup that can be hexagonal in shape? 1 Link to comment Share on other sites More sharing options...
Herb Posted March 25, 2020 Share Posted March 25, 2020 looks like a busted up sea urchin to me 1 "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
Rockwood Posted March 25, 2020 Share Posted March 25, 2020 1 hour ago, Jasperfossils said: Those on your photo are six sided, so it can never be an echinoderm. I don't think this is an absolute. 1 Link to comment Share on other sites More sharing options...
Jasperfossils Posted March 25, 2020 Share Posted March 25, 2020 (edited) I don’t think that either. It is too thick to be a piece of a sea urchin, pieces of sea urchins are thin. Edited March 25, 2020 by Jasperfossils Link to comment Share on other sites More sharing options...
Rockwood Posted March 26, 2020 Share Posted March 26, 2020 1 hour ago, Jasperfossils said: I don’t think that either. It is too thick to be a piece of a sea urchin, pieces of sea urchins are thin. Sorry, but I don't think that is an absolute either. Some urchin spines are sizable units. Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted March 26, 2020 Share Posted March 26, 2020 3 hours ago, Jasperfossils said: I don’t see a crinoid in this, crinoids are geometrically divided in 5 sides, because it is an echinoderm. Crinoid discs can be round, five-sides and star shaped but, you can see a star shape just like sea urchins if they are not very damaged. Those on your photo are six sided, so it can never be an echinoderm. Here's a crionoid calyx with several six-sided parts. 1 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
ClearLake Posted March 26, 2020 Share Posted March 26, 2020 6 hours ago, Jasperfossils said: don’t see a crinoid in this, crinoids are geometrically divided in 5 sides, because it is an echinoderm. Crinoid discs can be round, five-sides and star shaped but, you can see a star shape just like sea urchins if they are not very damaged. Those on your photo are six sided, so it can never be an echinoderm. I think you are assuming they have to be crinoid columnals. There are lots of other parts to a crinoid, such as arms, cups, etc that could have pieces that are shaped similar to these. I’m not saying that proves they are crinoids, just saying it can still be in the running. 1 Link to comment Share on other sites More sharing options...
ByronNWT Posted March 26, 2020 Author Share Posted March 26, 2020 Also on this rock Link to comment Share on other sites More sharing options...
Spoons Posted March 26, 2020 Share Posted March 26, 2020 Can OP provide a scale in the photos? I’m having a really hard time judging how large these “chrinoid pieces” are. My first reaction would be mineralogical in origin but as to what mineral it could be... Link to comment Share on other sites More sharing options...
ByronNWT Posted March 26, 2020 Author Share Posted March 26, 2020 The deposits are around 4cm long. Size of each “chrinoid” piece not really sure. Sorry my pictures suck. Link to comment Share on other sites More sharing options...
Spoons Posted March 26, 2020 Share Posted March 26, 2020 5 minutes ago, ByronNWT said: The deposits are around 4cm long. Size of each “chrinoid” piece not really sure. Sorry my pictures suck. Nah it’s all good. We all start somewhere and my photography is nowhere near professional myself. Link to comment Share on other sites More sharing options...
Herb Posted March 26, 2020 Share Posted March 26, 2020 I see this type of groupings in the Miss. around here quite often, in areas of high echinoderm fossil concentrations, crinoids, sea urchins . 2 "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now