Al Tahan Posted November 25, 2018 Share Posted November 25, 2018 Hello everyone! Thanks again to everyone who helped ID my last fossil (phyllocarid mandible) that had me confused. The weather is horrible in New York so I’m indoor fossil hunting haha (organizing old finds). I have another fossil here that I am pretty much stumped on as well. I’ve had it for several years....it’s something unknown to me. This came from Buffalo area in New York. I sadly don’t remember all the specifics of this find other than I most likely collected this from the Tichenor Limestone. I know for sure it’s from the Hamilton Group of western New York. Interesting looking “exoskeleton” type of fossil. Small only about 20-22mm (.75-.8 inches) give or take. Odd V shaped specimen and I don’t know if that’s the morphology or if it’s something folded...the would be “hinge” or “point” is gone to give me a clue. It has really nice orderly lines running along it and a “knob” on the longer side. Almost like an armor plate or somthing. I thought maybe plant material but it seems like preserved “hard parts” to me. I included a picture of the back of the limestone as it has a possible associated fossil also unknown to me....also “exoskeleton like” in appearance. I wish I knew more exact specifics of how and when I collected it but I hope the information I gave and pictures will be enough. Thanks, Al Link to comment Share on other sites More sharing options...
Al Tahan Posted November 25, 2018 Author Share Posted November 25, 2018 The first 2 pictures are supposed to be the last 2.....they are not the main attraction so to speak. I can’t fix it Link to comment Share on other sites More sharing options...
Wrangellian Posted November 25, 2018 Share Posted November 25, 2018 You could edit the post and delete those two pics, then edit again and add them below the others (or just add a reply, with them attached) I'm going to stick my neck out and say that is another phyllocarid or some similar arthropod material... that ornamentation looks familiar to me! If I'm wrong I know we'll hear it soon. Nice find, especially if it is phyllocarid. 1 Link to comment Share on other sites More sharing options...
Raggedy Man Posted November 25, 2018 Share Posted November 25, 2018 Looks like a hypostome. Maybe from Isotelus sp.? 2 ...I'm back. Link to comment Share on other sites More sharing options...
andreas Posted November 25, 2018 Share Posted November 25, 2018 Maybe partial (Lamell) Aptychus from a Cephalopod(Goniatites). But not sure at all. 1 Link to comment Share on other sites More sharing options...
Monica Posted November 25, 2018 Share Posted November 25, 2018 I was thinking of a hypostome from Isotelus, too, but I don't think that genus is found in Devonian deposits. Perhaps a hypostome from another trilobite? Does anyone know if Eldredgeops, Greenops, Bellacartwrightia, or Dipleura had hypostomes and, if so, what they looked like? @piranha 1 Link to comment Share on other sites More sharing options...
Kane Posted November 25, 2018 Share Posted November 25, 2018 1 hour ago, Monica said: I was thinking of a hypostome from Isotelus, too, but I don't think that genus is found in Devonian deposits. Perhaps a hypostome from another trilobite? Does anyone know if Eldredgeops, Greenops, Bellacartwrightia, or Dipleura had hypostomes and, if so, what they looked like? @piranha That is correct: the asaphids had pretty much gone extinct after the late Ordovician. And, yes, each of these species would have a hypostome. The two main types that would broadly encompass this list would be these (excerpted from Moore's Treatise "O"). A phacopid: A Dipleura: I have, however, encountered exfoliated fragments of Pseudodechenella that take on this terracing/ridged appearance, usually at the cephalic or pygidial border. 1 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Fossildude19 Posted November 25, 2018 Share Posted November 25, 2018 7 hours ago, Al Tahan said: The first 2 pictures are supposed to be the last 2.....they are not the main attraction so to speak. I can’t fix it Took care of it for you, Al. 1 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...
Al Tahan Posted November 25, 2018 Author Share Posted November 25, 2018 Thanks for all the input everyone.....are we leaning towards something trilobite related? Link to comment Share on other sites More sharing options...
Fossildude19 Posted November 25, 2018 Share Posted November 25, 2018 I think so. Also could be the ventral side of a trilobite doublure. Helpful LINK 1 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...
Al Tahan Posted November 25, 2018 Author Share Posted November 25, 2018 Great info! Thank you everyone @Fossildude19 @Kane @Wrangellian @Monica And more!! I promise I won’t bother you guys often with unknown fossils haha...I only have one more lol. I’ll give everyone a rest for a few day lol. It’s a trilobite cephalon! But I’m not sure of the species. Link to comment Share on other sites More sharing options...
sTamprockcoin Posted November 25, 2018 Share Posted November 25, 2018 Please use a ruler since coin sizes are not universal and the color/ shine reflection off the coin can sometimes confuse a camera. Just a reminder. 1 “Beautiful is what we see. More beautiful is what we understand. Most beautiful is what we do not comprehend.” N. Steno Link to comment Share on other sites More sharing options...
Ludwigia Posted November 25, 2018 Share Posted November 25, 2018 I'm just wondering if this might be part of a bivalve shell. Can't find a Hamilton Group trilobite which would fit the description. 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Fossildude19 Posted November 26, 2018 Share Posted November 26, 2018 I wouldn't rule out phyllocarid for this item. 1 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...
KCMOfossil Posted November 26, 2018 Share Posted November 26, 2018 2 hours ago, Ludwigia said: I'm just wondering if this might be part of a bivalve shell. This was also my first thought. Russ 1 Link to comment Share on other sites More sharing options...
Al Tahan Posted November 26, 2018 Author Share Posted November 26, 2018 12 hours ago, Ludwigia said: I'm just wondering if this might be part of a bivalve shell. Can't find a Hamilton Group trilobite which would fit the description. It’s quite odd.....it has a knob-like feature on it that would make me think “armor” ....I’m really not sure on much here ha. It would be an odd looking bivalve or partial bivalve but I can see it being possible too...stumped Link to comment Share on other sites More sharing options...
Scylla Posted November 26, 2018 Share Posted November 26, 2018 I'm getting a fish tooth vibe. Maybe early shark? Something like This? Link to comment Share on other sites More sharing options...
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