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Showing results for tags 'ordovician'.
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While doing a little fossil presentation to a local "Intro to Geology" class I did it..... Broke both eye stalks off this Asaphus kowalewskii. Any helpful tips from you folks regarding ways to align and hold the pieces while adhesive sets? And......lesson learned about transporting fragile specimens. :-(
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Ordovician Galena Formation probably Prosser member SE Minnesota For scale note penny at upper left. Below Part 1 Part 2 Part 3 I guess will be in the reply. :-)
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Ordovician Galena Formation, probably Prosser member SE Minnesota Do not know what this is! Fascinating! To me it looks like a tentacled head with bumps facing the bottom of the picture, then a long skinny spine and then a bulbous tail. The rock I've never seen anything like this before in the field or in the books for the Ordovician. Of course, I could be visualizing it wrong. Anyone know what this critter is???
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Caryocaris--An Ordovician Bi-Valved Crustacean
Virgilian posted a topic in General Fossil Discussion
On occasion, a paleo-pen pal emails me a few images of unusual material (I would consider most of what's sent "unusual," anyhow) he's pulled out of various places. Latest example is in the photograph, below. It's a slab of shale from a lower Ordovician section of the Palmetto Formation, Nevada, that contains carapaces (original phosphatic shell substance preserved intact, by the way) of the curious, extinct, bi-valved phyllocarid crustacean called Caryocaris. The critter seems restricted worldwide to strata of early to mid Ordovician geologic age (a handful of examples assigned to the Silurian are apparently problematic)--sometimes occurring in "graptolitic shale facies." I'd never even heard of these things until I received this image. Had to do some research, indeed. Not something most folks see everyday, I'm thinking.- 3 replies
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We are having a highly unusual, but welcome, respite from winter here in Minnesota. Temps have been in the 40s and 50s for several days and the snow is slowly departing. Rain is even forecast for tomorrow, but snow is predicted to return next weekend, so a fossil hunt sounded like a wonderful pursuit for a Sunday afternoon. The breezes were light, even balmy for February, green grass blades are starting to poke through and a flight of geese could be seen in the blue skies heading north - a sure sign of an early spring. I headed to one of my favorite hunting spots to see if it was melted off. My very first find was this gorgeous Halysites Coral! These are rare in these parts and this one is the biggest I have ever seen, but it is caught in the rock. :-( The location of this coral is very unusual as I have never found one at this level. Since I couldn't get this one out with the two hammers I had, I proceeded to wander the upper shelf of the Stewartville member of the Galena formation in this area collecting Maclurites, a lovely Fusispera sp., a broken trilo cephlon, and a warn cephalopod among other treasures. Continued...
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Ordovician Stewartville member of the Galena Formation SE Minnesota, USA I was out fossil hunting today and found this, which I believe is a worn hexigornian (sp?) coral. BUT I could certainly be wrong, so I thought I would post it for ID. As far as I know, a hex has never been found in this location, although hexs are known to be in this member of the Galena not too far away. Thoughts?
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Found near Richmond IN. 2-1/4" long, 1-1/2" wide. I know it's rough, but it's definitely something. (The pictures don't do it justice) Any ideas?
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Had the time to clean this up and was surprised at what I have. Any help IDing this would be greatly appreciated. It seems to have a tiny little tail!!!
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No link between gigantic Ordovician asteroid break-up, rise in biodiversity (open access paper)
Oxytropidoceras posted a topic in Fossil News
Myth busted: No link between gigantic asteroid break-up, rise in biodiversity, University of Copenhagen, February 3, 2017 https://www.sciencedaily.com/releases/2017/02/170203110156.htm https://phys.org/news/2017-01-meteorites-enrich-ocean-life.html the paper is; Lindskog, A., M. M. Costa, C.M.Ø. Rasmussen, J. N. Connelly, and M. E. Eriksson, 2017, Refined Ordovician timescale reveals no link between asteroid breakup and biodiversification. Nature Communications, 2017; 8: 14066 DOI: 10.1038/ncomms14066 http://www.readcube.com/articles/10.1038/ncomms14066 http://www.nature.com/articles/ncomms14066 Yours, Paul H. -
Hello. I know almost nothing about fossils. I found this in Nashville, Tennessee. I left it where I found it, but if I recall correctly it was about a foot long. I looked online to see what other similar fossils were found here but didn't see one like this. Any help?
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During the Christmas holidays, i had the opportunity to go out again for a trilobites hunt. Could spend 2 days there splitting shale. The site is Ordovician. The plan is to split good looking shale blocks, the bigger the better. For site pictures, you can go check on my previous report here I manage to find nearly complete or nearly complete bugs. The first morning, complete ones took their time to show up. The first one was this one : Neseuretus tristani, the most common on the site, but still a cool piece. On it's own it would have make my day. I will post more in a few days
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From the album: La Dominelais - winter 2016/2017 - Ordovician
Neseuretus tristani : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Neseuretus tristani and counterpart : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Neseuretus tristani : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Neseuretus tristani : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Neseuretus tristani : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Indet. trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Eodalmanitina destombesi destombesi : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
A huge partial Ectilaenus giganteus found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Ectilaenus giganteus : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Ectilaenus giganteus : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Ectilaenus giganteus : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Ectilaenus giganteus : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
From the album: La Dominelais - winter 2016/2017 - Ordovician
Neseuretus tristani : a trilobite found in La Dominelais (south of Rennes - Bretagne - France during winter 2016/2017 Ordovician, Landeilian (-460 MA) -
Is it possible to narrow down the location for these Sphenothallus sp. from the Whetstone Gulf Formation of New York from just "Lewis Co, NY"? Maybe more about the stratigraphy too (ie. what North American stage of the Ordovician?) I suppose I could ask the seller but I'm going to assume the info they gave was all they had or were willing to divulge, and I know TFF has a good knowledge base, so... The info I got was: Sphenothallus sp. Upper Ordo (Sandbian), Whetstone Gulf Fm, Lewis County, NY. Also stated this unit is where the pyritized trilos with soft parts preserved come from (not the exact site I guess).
