piranha Posted March 15, 2011 Share Posted March 15, 2011 I would love to be able to ID that positively, but unfortunately my knowledge is limited to the Ordovician fauna. I did however come across this paper looking for an answer. "New and old Silurian Trilobites from Southeastern Wisconsin, with Notes on the Genera of the Illaenidae". From this, I would venture a guess that it's Bumastus cuniculus (Hall). Perhaps by studying the specimen you have with the descriptions of Bumastoides in this paper you will be able to find a positive ID. Wow Caleb, that is a really awesome bulletin. Another great pdf to add to the files ... Thank You !! Link to comment Share on other sites More sharing options...
alopias Posted March 16, 2011 Share Posted March 16, 2011 piranha , no shark teeth here TRILOBITE!! Spanish trilobite of my small collection Salterocoryphe salteri( Rouault, 1851) Ordovician , landeilian ,Ciudad real size : 3cm and Colpocoryphe rouaulti(Henry,1956 ) " " " " size : 5cm and 3,5 cm Link to comment Share on other sites More sharing options...
MikeD Posted March 17, 2011 Share Posted March 17, 2011 Here is mine. I posted it a long time ago, but I've been working on it recently. Still have more prep to go, but at least you can see more of it now. It has a few blemishes, but I still like it (because I found it). It is Ordovician from central Kentucky. I was told it was Gravicalymene. Link to comment Share on other sites More sharing options...
piranha Posted March 17, 2011 Share Posted March 17, 2011 The Salterocoryphe is simply spectacular !! The "Gravi" has more of a "Flexi" look to me. TOP calymenids Alopias and Mike, Thanks !! Link to comment Share on other sites More sharing options...
Caleb Posted March 17, 2011 Share Posted March 17, 2011 Nice bug MikeD and congrats on the find. Whether it is a Gravi or Flexi is hard to tell from this photo... it's hard to tell in real life too. The subtle difference between the Gravi and Flexi exists mainly in the glabella. A top down photo of the cephalon would help in knowing for sure that this is a Gavicalymene. Here is a brief paper on distinguishing the differences between the different Flexi species and the Gravicalymene. Flexicalymene Species Determination Caleb Midwestpaleo.com Link to comment Share on other sites More sharing options...
MikeD Posted March 17, 2011 Share Posted March 17, 2011 Thanks. I'll check out that paper and get another photo when I get a chance. Link to comment Share on other sites More sharing options...
piranha Posted March 20, 2011 Share Posted March 20, 2011 Another trilobite for PzF's TOP thread: Pseudogygites latimarginatus 2-1/2" Upper Ordovician - Lower Whitby Fm Bowmanville, Ontario, Canada Link to comment Share on other sites More sharing options...
paleozoicfish Posted March 21, 2011 Author Share Posted March 21, 2011 Another trilobite for PzF's TOP thread: Pseudogygites latimarginatus 2-1/2" Upper Ordovician - Lower Whitby Fm Bowmanville, Ontario, Canada Nice plate! I think I have a bigger plate of those lying around... I will have to look when I get back home. -PzF Link to comment Share on other sites More sharing options...
alopias Posted March 27, 2011 Share Posted March 27, 2011 another , Ogygiocarella debuchi Ordovician Shropshire UK , size :26 mm Link to comment Share on other sites More sharing options...
piranha Posted March 27, 2011 Share Posted March 27, 2011 Another Amazingly Awesome Arthropod Alopias ~ And An Additional Asaphiscus Assemblage-Association Assortment !! The headless bug with encrusting pyrite crystals would have been close to a 3 incher !! Asaphiscus wheeleri (2) 2-1/4" Elrathia kingi - meraspid 1cm Middle Cambrian - Wheeler Fm Millard County, Utah Link to comment Share on other sites More sharing options...
Caleb Posted April 3, 2011 Share Posted April 3, 2011 Well I just got 2 trilobites back from our prep guy(Gerald Kloc) at the MAPS fossil show and I just HAVE to post them in this topic. The first is a Cybeloides iowensis(4.75cm) from Northeast Iowa and the second is a very nice Flexacalymene sp.(5.0cm) from Southeast MN. Both bugs are from the Maquoketa formation. Caleb Midwestpaleo.com Link to comment Share on other sites More sharing options...
piranha Posted April 9, 2011 Share Posted April 9, 2011 As always Caleb - Amazing Trilobites !! Link to comment Share on other sites More sharing options...
piranha Posted April 9, 2011 Share Posted April 9, 2011 This Russian bug has long graceful genal spines. In recent years it has been called Prochasmops. Verifying validity for that name appears dubious. Chasmops praecurrens 2-1/4" Middle Ordovician - Vilpovitsy Quarry Asery Formation, St Petersburg, Russia Link to comment Share on other sites More sharing options...
alopias Posted April 10, 2011 Share Posted April 10, 2011 piranha , this bug is my favorite trilobite from Russia Link to comment Share on other sites More sharing options...
Sinopaleus Posted April 18, 2011 Share Posted April 18, 2011 (edited) haha im kind of late but... i personally like moroccan trilobites or big, bulky, detailed, intimidating and rare trilobites. haha pretty vague but i mean it my trilo collection is still under construction but i'm sure i won't get enough! so here's one to start off with. Cambropallas telesto, 22 cm body with counterpart, Morocco aye... it's a pretty bad pic... but pictures won't ever show true beauty Edited April 18, 2011 by fossil maniac Link to comment Share on other sites More sharing options...
piranha Posted April 18, 2011 Share Posted April 18, 2011 Hi Henry, Here are the two stratigraphic sequences where this trilobite is recorded from Morocco. Without an accurate account of collection data it is difficult to say which one although there are only two to choose from. Each of these can fit on a label followed by a (?). At a minimum you know it can only be one or the other and much more preferable than "Found in Morocco". Middle Cambrian - Tissafinian (lower) Tata Group - Asrir Tazlaft Formation Lower Cambrian - Banian (upper) Tata Group - Issafen Formation Thanks for posting a robust and superb Cambropallas telesto! Link to comment Share on other sites More sharing options...
Sinopaleus Posted April 19, 2011 Share Posted April 19, 2011 Hi Henry, Here are the two stratigraphic sequences where this trilobite is recorded from Morocco. Without an accurate account of collection data it is difficult to say which one although there are only two to choose from. Each of these can fit on a label followed by a (?). At a minimum you know it can only be one or the other and much more preferable than "Found in Morocco". Middle Cambrian - Tissafinian (lower) Tata Group - Asrir Tazlaft Formation Lower Cambrian - Banian (upper) Tata Group - Issafen Formation Thanks for posting a robust and superb Cambropallas telesto! i think it's from asrir tazlaft formation. and haha, sorry there just isn't space for detailed information. i tend to write them in the description space of the gallery. and thanks scott i think this cambro was the first trilo in my collection Link to comment Share on other sites More sharing options...
Frank Menser Posted April 19, 2011 Share Posted April 19, 2011 A few from the collection. Be true to the reality you create. Link to comment Share on other sites More sharing options...
Frank Menser Posted April 19, 2011 Share Posted April 19, 2011 Someones was asking for a Harpes? Be true to the reality you create. Link to comment Share on other sites More sharing options...
xonenine Posted April 20, 2011 Share Posted April 20, 2011 (edited) awesome, another Harpes!!!! I have two favorites to present, I recently became the proud recipient of my first BC trilobites, courtesy of palaeopix!~Thank You Dan, they are sublime and here's their moment... The first is a Labiostria westropi, and is very remarkable in its front and back preservation. The second is a Wujiajiania sutherlandi. Both hail from the Upper Cambrian McKay Group in South Eastern BC! Edited April 20, 2011 by xonenine "Your serpent of Egypt is bred now of your mud by the operation of your sun; so is your crocodile." Lepidus Link to comment Share on other sites More sharing options...
piranha Posted May 8, 2011 Share Posted May 8, 2011 Here is another bizarre and beautiful cheirurine trilobite. It is a Crotalocephalus sp. from Morocco. There are approximately a dozen valid species described from six different formations that span the early Pragian to early Eifelian stages of the Devonian (lower-middle). Typically the commercial sellers are calling these specimens Crotalocephalus gibbus although I am hesitant to go along with that as I have no confidence of the actual formation it was collected from and even less confidence in the data that generally accompanies most of the Moroccan material found on the internet. A nifty and intricate bug- Enjoy! Crotalocephalina sp. - 2.75" Link to comment Share on other sites More sharing options...
Sinopaleus Posted May 26, 2011 Share Posted May 26, 2011 this would possibly be my favorite trilobite of all time. this stygnid trilobite from alnif, morocco has strange stripes across the body. if it was unrolled, then it would possibly measure 2.8". it's a free standing corynexochiid trilobite i received a few days ago. (most of you would know by now, i guess...) Paralejurus hamlagdadicus, 2.75" , Devonian, Alnif Morocco 1 Link to comment Share on other sites More sharing options...
paleozoicfish Posted May 26, 2011 Author Share Posted May 26, 2011 One other interesting trilobite from my Collection. I hope you guys are not tired of soft-body trilobites. This is an interesting laterally preserved Triarthrus with what may be a 'bite' out of the cheek. Body length just over 1 cm. Great contrast overall. cheers, -PzF Link to comment Share on other sites More sharing options...
piranha Posted May 26, 2011 Share Posted May 26, 2011 You have been holding out on us PzF.... this is perhaps the most incredible Triarthrus! The carapace is eerily "floating" above the antennae and appendages- it is ALIVE !! Link to comment Share on other sites More sharing options...
JohnJ Posted May 26, 2011 Share Posted May 26, 2011 One other interesting trilobite from my Collection. I hope you guys are not tired of soft-body trilobites. This is an interesting laterally preserved Triarthrus with what may be a 'bite' out of the cheek. Body length just over 1 cm. Great contrast overall. cheers, -PzF That is incredible, Pzf! The human mind has the ability to believe anything is true. - JJ Link to comment Share on other sites More sharing options...
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