Ameenah Posted June 11, 2012 Share Posted June 11, 2012 I found a very large ceph fragment Is there a way to figure out the approximate size from a fragment? Explore -> Dream -> Discover ! Link to comment Share on other sites More sharing options...
squalicorax Posted June 11, 2012 Share Posted June 11, 2012 If you figure out the genera from the siphuncle you might be able to figure out an estimate. You have the phragmocone in tact which is good. My Flickr Page of My Collection: http://www.flickr.com/photos/79424101@N00/sets Link to comment Share on other sites More sharing options...
FossilDAWG Posted June 11, 2012 Share Posted June 11, 2012 Can you see any tapering to the specimen? Perhaps you could calculate how long the specimen would have to be to come to a point. Don Link to comment Share on other sites More sharing options...
Fossildude19 Posted June 11, 2012 Share Posted June 11, 2012 Great find, Ameenah! Math problem? No thank you! I'm outta here. Regards, Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
TMNH Posted June 11, 2012 Share Posted June 11, 2012 Great find! I have a complete Endoceras phragmocone that is similar in width at the end. Presuming that this shell tapered about the same as mine, when complete, yours may have been around 20" long. Link to comment Share on other sites More sharing options...
Ameenah Posted June 11, 2012 Author Share Posted June 11, 2012 Great find, Ameenah! Math problem? No thank you! I'm outta here. Regards, LOL Tim Explore -> Dream -> Discover ! Link to comment Share on other sites More sharing options...
Ameenah Posted June 11, 2012 Author Share Posted June 11, 2012 Great find! I have a complete Endoceras phragmocone that is similar in width at the end. Presuming that this shell tapered about the same as mine, when complete, yours may have been around 20" long. Wow 20" !!!!!!?????!!!!!!! I would love to see yours please post a pic. Explore -> Dream -> Discover ! Link to comment Share on other sites More sharing options...
Ameenah Posted June 11, 2012 Author Share Posted June 11, 2012 Can you see any tapering to the specimen? Perhaps you could calculate how long the specimen would have to be to come to a point. Don I do see some tapering Don Explore -> Dream -> Discover ! Link to comment Share on other sites More sharing options...
Ameenah Posted June 11, 2012 Author Share Posted June 11, 2012 If you figure out the genera from the siphuncle you might be able to figure out an estimate. You have the phragmocone in tact which is good. Thanks for the info. I had to look up phragmocone Explore -> Dream -> Discover ! Link to comment Share on other sites More sharing options...
Teres Posted June 15, 2012 Share Posted June 15, 2012 Hi Ameenah, here's one very similar to yours (also from middle Tn.) This one is from the Lebanon Limestone, Upper Ordovician. Phragmacone and living chamber, large centrally placed siphuncle, so probably Endoceras(?). Link to comment Share on other sites More sharing options...
Teres Posted June 15, 2012 Share Posted June 15, 2012 Here's a view of the siphuncle...I forgot to add that it's close to 20 cm. Link to comment Share on other sites More sharing options...
Ameenah Posted June 15, 2012 Author Share Posted June 15, 2012 Very cool Teres !!!! what part of TN are you in? Explore -> Dream -> Discover ! Link to comment Share on other sites More sharing options...
Teres Posted June 15, 2012 Share Posted June 15, 2012 Wilson county! Link to comment Share on other sites More sharing options...
Uncle Siphuncle Posted June 15, 2012 Share Posted June 15, 2012 you could either use a little trig to answer your question, or just slap 2 straight edges on opposite sides of the taper and measure to the intersection. Grüße, Daniel A. Wöhr aus Südtexas "To the motivated go the spoils." Link to comment Share on other sites More sharing options...
Scylla Posted June 15, 2012 Share Posted June 15, 2012 just had to comment on the humor in you icon. lol. Link to comment Share on other sites More sharing options...
Ameenah Posted June 16, 2012 Author Share Posted June 16, 2012 you could either use a little trig to answer your question, or just slap 2 straight edges on opposite sides of the taper and measure to the intersection. trig uhhhhh?????........ straight edges sound great ~ thanks Explore -> Dream -> Discover ! Link to comment Share on other sites More sharing options...
Ameenah Posted June 16, 2012 Author Share Posted June 16, 2012 just had to comment on the humor in you icon. lol. You like that huh? Explore -> Dream -> Discover ! Link to comment Share on other sites More sharing options...
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