JerseyGirl Posted April 20, 2017 Share Posted April 20, 2017 1. Coral? Urchin? Link to comment Share on other sites More sharing options...
JerseyGirl Posted April 20, 2017 Author Share Posted April 20, 2017 2. Funky fragment... Link to comment Share on other sites More sharing options...
JerseyGirl Posted April 20, 2017 Author Share Posted April 20, 2017 3. Whose tooth? Sawfish? Link to comment Share on other sites More sharing options...
fossilsofnj Posted April 20, 2017 Share Posted April 20, 2017 Hello JerseyGirl, Your first pic is probably coral that has washed down quite a distance from the North. Pic 2 is a chimaera (ratfish) plate. The last pic is a broken rostral spine from the sawfish Ischyrhiza mira. Nice finds. john 5 It's good sportsmanship to not pick up lost golf balls while they are still rolling. - Mark Twain Link to comment Share on other sites More sharing options...
Jeffrey P Posted April 20, 2017 Share Posted April 20, 2017 I agree with John. The first piece looks like weathered rugose (horn) coral- probably Devonian or Silurian brought down by a glacier during the Ice Age.. Link to comment Share on other sites More sharing options...
JerseyGirl Posted April 20, 2017 Author Share Posted April 20, 2017 Thanks! Link to comment Share on other sites More sharing options...
JerseyGirl Posted April 23, 2017 Author Share Posted April 23, 2017 4. Tooth fragment? Crustacean segment? Both edges are serrated; a cross section would be a demilune shape. Link to comment Share on other sites More sharing options...
JerseyGirl Posted April 23, 2017 Author Share Posted April 23, 2017 5. Spine? Tooth? Link to comment Share on other sites More sharing options...
fossilsofnj Posted April 23, 2017 Share Posted April 23, 2017 both are part of the claw of Protocallianassa sp. or ghost shrimp. Here's a picture of an articulated claw from Big Brook to compare to. Very common in the NJ streams. john 3 It's good sportsmanship to not pick up lost golf balls while they are still rolling. - Mark Twain Link to comment Share on other sites More sharing options...
JerseyGirl Posted April 23, 2017 Author Share Posted April 23, 2017 Perfect picture-- I see both parts. Thanks. A few more coming before I put my finds away... Link to comment Share on other sites More sharing options...
Jeffrey P Posted April 23, 2017 Share Posted April 23, 2017 Nice shrimp pieces there. Because of stream wear those serrations have typically worn off. Nice to see one with the serration still present. Congrats. Link to comment Share on other sites More sharing options...
JerseyGirl Posted April 24, 2017 Author Share Posted April 24, 2017 6. Just a funky rock? The textured side is the convex side (overall shape is a curved plate). I can't see any suggestive texture to the edge so I'm guessing this is just a curiosity? Link to comment Share on other sites More sharing options...
Trevor Posted April 24, 2017 Share Posted April 24, 2017 Looks like sludge. Seems a little too thick to be a scute of any type. Well, at least it is good to always pick up something even if you do not know what it is, might be a fossil. : ) Link to comment Share on other sites More sharing options...
Plax Posted April 24, 2017 Share Posted April 24, 2017 albulid jaw frag sans teeth? (something like parabula casei?) guessing Link to comment Share on other sites More sharing options...
FossilDAWG Posted April 24, 2017 Share Posted April 24, 2017 If you want to have your labels up-to-date, Protocallianassa mortoni is now named Mesostylus mortoni. I agree with Plax that your last specimen may be a worn albulid mouthpart. Don Link to comment Share on other sites More sharing options...
fossilsofnj Posted April 24, 2017 Share Posted April 24, 2017 Thanks Don, I was not aware of that change . john It's good sportsmanship to not pick up lost golf balls while they are still rolling. - Mark Twain Link to comment Share on other sites More sharing options...
FossilDAWG Posted April 24, 2017 Share Posted April 24, 2017 It is hard to keep up with all the taxonomic revisions. Here's a link to the paper that discusses the reassignment to Mesostylus. Don Link to comment Share on other sites More sharing options...
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