i'll be a little more specific.....
if it helps, it is not a shell....simply round, it has a hole in the center as well. and it's not flat either....i don't have a picture to show and i can't find one online that matches the description. (i made a mold of it in class and now i'm trying to remember what it was so i can finish an info card about it....well i got myself into a big mess.)
thanks for your help!
2007-02-22 14:04:27 · 5 answers · asked by dreamer_girl 2 in Science & Mathematics ➔ Earth Sciences & Geology
sounds like an echinoid:
2007-02-22 14:20:11 · answer #1 · answered by Anonymous · 0⤊ 0⤋
ude ive been trying to say(on last one)it could be a laminid form shark vertabre.if its 2 inches its probly from a 6 to eight foot shark some have 4 holes some have 2 some have 3 on one side and 1 on the other depending where the pectorial was placed and the nerve line passed.the hole in the center is probly from reformulated wear,like most have these since there brittle in the center.it should look like a bowl on each side.some even have holes around the whole disc
2007-02-22 22:53:16 · answer #2 · answered by william d i 1 · 0⤊ 0⤋
Hmmm....sorry...
Use google pics to look up some common ones -- crinoids and other echinoids (related to star fish...the hole doesn't have 5 point symmetry, does it? That'd be one of those), rugosa (round but generally trumpet-like) and other corals...that's all the suggestions I have.
2007-02-22 22:17:22 · answer #3 · answered by D E W 1 · 0⤊ 0⤋
Maybe if you could give some dimensions. It sounds to me like it is a crynoid (spelling?) stem, but without dimensions or some better descriptions I can't tell.
2007-02-23 17:57:48 · answer #4 · answered by Amphibolite 7 · 0⤊ 0⤋
if it was smaller I would possibly guess crinoid:
http://www.kgs.ku.edu/Extension/fossils/crinoid.html
Was the round disk broken?
2007-02-22 22:10:11 · answer #5 · answered by darkrevni 1 · 0⤊ 0⤋