glacialerratic Posted April 23, 2012 Share Posted April 23, 2012 (edited) Another amazing showing of fossils! My entry this month is the Annularia sphenophylloides I opened on 4/17/12, originally collecting the nodule around 9/17/10. The fossil is 21mm long by 15mm at the widest point. Positive Negative Edited April 28, 2012 by michigantim Link to comment Share on other sites More sharing options...
TOM BUCKLEY Posted April 23, 2012 Share Posted April 23, 2012 that is a nice greenops Tom Thank you! The Greenops thanks you also. Tom AVOCATIONAL PALEONTOLOGIST STROKE SURVIVOR CANCER SURVIVOR CURMUDGEON "THERE IS A VERY FINE LINE BETWEEN AVOCATIONAL PALEONTOLOGY AND MENTAL ILLNESS" Link to comment Share on other sites More sharing options...
pleecan Posted April 23, 2012 Share Posted April 23, 2012 Another amazing showing of fossils! My entry this month is the Annularia sphenophylloides I opened on 4/17/12, originally collecting the nodule around 9/17/10. Positive Negative Very Nice Tim! Link to comment Share on other sites More sharing options...
glacialerratic Posted April 24, 2012 Share Posted April 24, 2012 Thanks, Peter! The contest is looking good this month! Link to comment Share on other sites More sharing options...
GerryK Posted April 26, 2012 Share Posted April 26, 2012 This trilobite belongs to a "clade" that has been put into 5 different genera. This species is not described and for now it's referred to as Calymene? sp. It's from the Silurian of Missouri. Collected 4/2/12 and finished prepping 4/24/12 from a block of limestone. Link to comment Share on other sites More sharing options...
piranha Posted April 26, 2012 Share Posted April 26, 2012 Looks like a Calymene celebra to me The large axial gap below the posterior borders and the occipital lobe is seen in other examples of Calymene celebra from the Silurian of Missouri, including the lumpy glabellar lobes... unless Scott (piranha) or any other trilobitologist can prove me wrong? Henry, You could be correct but this is not a simple proposition. Additionally, the wide axial gap you mention is a result of the cephalon tipped forward relative to the prone position of the trilobite and not actually a useful diagnostic feature. Follow this LINK to an excellent paper on morphometric and phylogenetic analysis of the Calymenidae. Ironically this paper addresses these issues specifically in an attempt to clarify the dubious status of C. celebra in the past 100+ years. And last but not least, Gerry is certainly one of the top trilobite specialists here at TFF; if he says the bug is undescribed you can bank on it. Link to comment Share on other sites More sharing options...
pleecan Posted April 26, 2012 Share Posted April 26, 2012 Great find Gerry! I agree with this statement "Gerry is certainly one of the top trilobite specialists here at TFF; if he says the bug is undescribed you can bank on it." Link to comment Share on other sites More sharing options...
pleecan Posted April 26, 2012 Share Posted April 26, 2012 Vertebrate Entry: April 22, 2012 Placoderm Armor, possible tenative id = Protitanichthys Hungry Hollow Formation Mid Devonian Hamilton Group Only a small section was accidentally exposed... the rest is buried in the rock matrix Here is the exposed section approx 1" section Link to comment Share on other sites More sharing options...
Sinopaleus Posted April 26, 2012 Share Posted April 26, 2012 (edited) Henry, You could be correct but this is not a simple proposition. Additionally, the wide axial gap you mention is a result of the cephalon tipped forward relative to the prone position of the trilobite and not actually a useful diagnostic feature. Follow this LINK to an excellent paper on morphometric and phylogenetic analysis of the Calymenidae. Ironically this paper addresses these issues specifically in an attempt to clarify the dubious status of C. celebra in the past 100+ years. And last but not least, Gerry is certainly one of the top trilobite specialists here at TFF; if he says the bug is undescribed you can bank on it. :blink: My bad, I was just expressing my view but apparently I never thought GerryK was a trilobitologist! I seriously thought it was a Calymene celebra but if it isn't then it proves me wrong Great find Gerry! I like the preservation of the lovely Calymene Edited April 26, 2012 by Sinopaleus Link to comment Share on other sites More sharing options...
GerryK Posted April 26, 2012 Share Posted April 26, 2012 Henry, You could be correct but this is not a simple proposition. Additionally, the wide axial gap you mention is a result of the cephalon tipped forward relative to the prone position of the trilobite and not actually a useful diagnostic feature. Follow this LINK to an excellent paper on morphometric and phylogenetic analysis of the Calymenidae. Ironically this paper addresses these issues specifically in an attempt to clarify the dubious status of C. celebra in the past 100+ years. And last but not least, Gerry is certainly one of the top trilobite specialists here at TFF; if he says the bug is undescribed you can bank on it. This trilobite is not a "celebra" but is in the same "clade" of "celebra." I'll be using this trilobite in an up and coming discussion in Missouri Trilobites in how they are different but related. Link to comment Share on other sites More sharing options...
DeloiVarden Posted April 27, 2012 Share Posted April 27, 2012 Looks like the month of the trilos! A lot of great stuff. Link to comment Share on other sites More sharing options...
Sinopaleus Posted April 27, 2012 Share Posted April 27, 2012 (edited) Looks like the month of the trilos! A lot of great stuff. And here's another trilobite to add to the party, a rare, new species of Altiocculius (Alokistocare) I found in Utah's Drum Mountains. Altiocculus n. sp, Middle-Cambrian, Antelope Springs, Drum Mountains, UT, USA Link to hunting trip: http://www.thefossil...rd-county-utah/ Trilobite is 1" in length. Found on February 12, Prep finished on April 24 Before Prep After Prep Edited April 30, 2012 by Sinopaleus Link to comment Share on other sites More sharing options...
pleecan Posted April 27, 2012 Share Posted April 27, 2012 Super cool Henry!! Congratulations!! Link to comment Share on other sites More sharing options...
Sinopaleus Posted April 27, 2012 Share Posted April 27, 2012 Super cool Henry!! Congratulations!! Thanks Peter Link to comment Share on other sites More sharing options...
DeloiVarden Posted April 29, 2012 Share Posted April 29, 2012 Went diving today and found some decent megs and mako, but my favorite was this little Great White. Measures about 1 1/4" and has nice color and serrations. Carcharodon carcharias 1 1/4", Miocene Charleston, SC 04/28/12 Link to comment Share on other sites More sharing options...
Dromiopsis Posted April 29, 2012 Share Posted April 29, 2012 Hello! Found in Sweden beginning of April Agnostus pisiformis High concentration of shields comming from Kinnekulle, Upper Cambrian, Västergotland, Sweden D Gallery pictures http://www.flickr.com/photos/supergrevling/ Link to comment Share on other sites More sharing options...
Bill Posted April 29, 2012 Share Posted April 29, 2012 ^^^^^^^^^ WOW ^^^^^^^ KOF, Bill. Welcome to the forum, all new members www.ukfossils check it out. Link to comment Share on other sites More sharing options...
Shamalama Posted April 29, 2012 Share Posted April 29, 2012 (edited) Okay, I'm going to enter my partial fossil fish from Red Hill that I found a couple of weeks ago. This is my first Vert entry into the FOTM and is up against some good competition: Limnomis delaneyi Found April 14th Red Hill, Hyner, PA Catskill Formation Upper Devonian Edited April 29, 2012 by Shamalama -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
pleecan Posted April 29, 2012 Share Posted April 29, 2012 Great entries for the month of April! Best wishes to all who have entered. Link to comment Share on other sites More sharing options...
Sinopaleus Posted April 29, 2012 Share Posted April 29, 2012 Great entries for the month of April! Best wishes to all who have entered. This is my first entry for FOTM so I'm really nervous and excited I can't wait to see what happens next! Great finds everyone Link to comment Share on other sites More sharing options...
Malcolmt Posted April 29, 2012 Share Posted April 29, 2012 Very nice bug.......... wish I could have been there.... Link to comment Share on other sites More sharing options...
JohnJ Posted April 30, 2012 Author Share Posted April 30, 2012 Did you hear that???? No, it's not continental drift, the changing of the seasons, or a shift in geologic eras. It's just the clock ticking away the minutes until the beginning of the April FOTM contests.....and the time for me to hand the reins of the FOTM contests over to someone else on our staff. We all know that different priorities can shuffle how much time we devote to the things we do; and the gradual shuffling in my life results in this change. I've really enjoyed the opportunity to help with a little fun and learning the last few years. Cris will organize the April contests and I'll continue to assist behind the scenes. Best of luck to all this month! The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
Sinopaleus Posted April 30, 2012 Share Posted April 30, 2012 Did you hear that???? No, it's not continental drift, the changing of the seasons, or a shift in geologic eras. It's just the clock ticking away the minutes until the beginning of the April FOTM contests.....and the time for me to hand the reins of the FOTM contests over to someone else on our staff. We all know that different priorities can shuffle how much time we devote to the things we do; and the gradual shuffling in my life results in this change. I've really enjoyed the opportunity to help with a little fun and learning the last few years. Cris will organize the April contests and I'll continue to assist behind the scenes. Best of luck to all this month! Thanks for all the hard work John! Link to comment Share on other sites More sharing options...
Sinopaleus Posted April 30, 2012 Share Posted April 30, 2012 Very nice bug.......... wish I could have been there.... Wait, which bug... Link to comment Share on other sites More sharing options...
DeloiVarden Posted April 30, 2012 Share Posted April 30, 2012 Did you hear that???? No, it's not continental drift, the changing of the seasons, or a shift in geologic eras. It's just the clock ticking away the minutes until the beginning of the April FOTM contests.....and the time for me to hand the reins of the FOTM contests over to someone else on our staff. We all know that different priorities can shuffle how much time we devote to the things we do; and the gradual shuffling in my life results in this change. I've really enjoyed the opportunity to help with a little fun and learning the last few years. Cris will organize the April contests and I'll continue to assist behind the scenes. Best of luck to all this month! Thanks John for working on the FOM thread and the work you do for the entire forum! Link to comment Share on other sites More sharing options...
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