rem098 Posted August 4, 2015 Share Posted August 4, 2015 On our recent vacation I swam in Lake Ontario at a park in St.Catharines, Ontario. I brought back a whole bunch of rocks I found in the lake, and some fossils. A lot of them look the same, like a spinal column kinda. Any idea what they are? (I have them in water because it's easier to see them that way Link to comment Share on other sites More sharing options...
FossilDAWG Posted August 4, 2015 Share Posted August 4, 2015 (edited) These are the stems of crinoids, a type of echinoderm. Crinoid fossils used to be called "sea lilies" because they look superficially like a plant, and modern crinoids are sometimes called "feather stars". They are related to starfish and sea urchins, but differ in that they had a long stalk to hold them above the sea floor (this is the part you found), a cup-shaped body (called a calyx), and arms (sometimes feathery-looking) that caught small organic material and passed it to the mouth on the top of the calyx. Around St. Catherines these fossils could be Ordovician or Silurian in age. Don Edited August 5, 2015 by FossilDAWG 2 Link to comment Share on other sites More sharing options...
abyssunder Posted August 4, 2015 Share Posted August 4, 2015 Welcome to the Forum! Nice finds and very well described by Don.Thanks for posting them here. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
ZiggieCie Posted August 4, 2015 Share Posted August 4, 2015 Nice finds, and Welcome to the forum. Link to comment Share on other sites More sharing options...
Herb Posted August 4, 2015 Share Posted August 4, 2015 nice pix, welcome "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...
Mike from North Queensland Posted August 5, 2015 Share Posted August 5, 2015 I am with FossilDAWG crinoid. But they look like rocks with zippers. Its interesting how some fossils are preserved then partially eroded when found. Welcome to the Forum Mike 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