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Jessica Smith posted a new activity comment 1 year, 5 months ago
1 year, 5 months ago1 year, 5 months agoThanks @jim-barkley!
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Pamela Fabrick posted a new activity comment 1 year, 11 months ago
1 year, 11 months ago1 year, 11 months ago@jim-barkley Thank you. I was able to find out that this rock told what fish species you would find at this location. Like a menu😁 I thought they were leaves at first.
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Charles Du posted a new activity comment 3 years, 2 months ago
3 years, 2 months ago3 years, 2 months agoThank you @jim-barkley you are correct. Metasequoia occidentalis is an extinct redwood species of the family Cupressaceae that is found as fossils throughout the Northern Hemisphere.
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MacKenzie Smith posted a new activity comment 3 years, 2 months ago
3 years, 2 months ago3 years, 2 months ago@rebecca-barnett, @Jim-barkley is correct, it is Pecopteris. I would hold off on putting it in an order though since Pecopteris is a morphogenus and does not belong to a any one group. It is a convergent form. @matthew-gramling is correct in that it could belong to Medullosales however it could also belong to Marattiales.
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MacKenzie Smith posted a new activity comment 3 years, 2 months ago
3 years, 2 months ago3 years, 2 months ago@chloe-geddes, @smudge-smith I agree with @jim-barkley. To add on to it a little more, this looks like a Mazon Creek nodule which puts it at about 309 Ma (mid-Pennsylvanian which is part of the Carboniferous). Mazon Creek nodules come from the Francis Creek Shale Member of the Carbondale Formation.
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Sean Moran posted a new activity comment 3 years, 8 months ago
3 years, 8 months ago3 years, 8 months agoHi @jim-barkley. Just wanted to clarify the location so we can ensure it’s accurate before marking this as research grade. It looks to me , based on the location of Antelope Springs, that the site would be 69 miles north, not west, of Delta. Is that correct?
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MacKenzie Smith posted a new activity comment 3 years, 8 months ago
3 years, 8 months ago3 years, 8 months ago@smoran and @jim-barkley My reason for doing this was overall shape and some of the other hypothesized plants had extra loops before the margin.
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MacKenzie Smith posted a new activity comment 3 years, 8 months ago
3 years, 8 months ago3 years, 8 months ago@smoran and @jim-barkley I don’t know for sure but I’m ruling it down to Ericales. This is an order level ID. It includes plants like blueberries, kiwis, tea and Symplocos.
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MacKenzie Smith posted a new activity comment 3 years, 8 months ago
3 years, 8 months ago3 years, 8 months ago@vperez and @jim-barkley I can’t see the venation on the dark one. It’s too dark. The overall shape looks Salix like (willow). Salix has been described from the GRF in 1934 by Brown. This image is just for the darker one. The lighter one has it’s own specimen number and image.
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Sean Moran posted a new activity comment 3 years, 8 months ago
3 years, 8 months ago3 years, 8 months agoCertainly big county out there @jim-barkley! Is there any way you could use Google Maps to get GPS coordinates that more closely relate to the location? I’m just trying to think of ways to more accurately record location so that we can mark this as research grade. Thanks!
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Sean Moran posted a new activity comment 3 years, 8 months ago
3 years, 8 months ago3 years, 8 months agoHi @jim-barkley. Could you add Phanerozoic Eon, Mesozoic Era, Cretaceous Period, Late Cretaceous Epoch to this specimen? And do you know the nearest town to where this was collected? Thanks!
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Sean Moran posted a new activity comment 3 years, 8 months ago
3 years, 8 months ago3 years, 8 months agoBeautiful specimen @jim-barkley! Any chance you know the nearest town to where this was collected?
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Sean Moran posted a new activity comment 3 years, 8 months ago
3 years, 8 months ago3 years, 8 months agoHi @jim-barkley, any chance you know the nearest town to where this specimen would have been collected? Thanks!
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MacKenzie Smith posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months agoHi @jim-barkley! I certainly see the overall shape and asymmetrical base as being similar to Allophylus. However, the secondary veins of Allophyllus are crasspidodromous meaning that they go directly to the margin. The veins on this leaf bifurcate before they get to the margin. There are also several intersecondaries which is something I don’t see…[Read more]
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Victor Perez posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months agoHi @jim-barkley ! For this one, we can update the taxonomy and say at least the class Cephalopoda and update the geochronology with the same info as the previous specimen.
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Victor Perez posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months agoHi @jim-barkley ! If you update the taxonomy and the geochronology we can mark this as research grade. For taxonomy, we can at least say this is from the class Anthozoa. For the geochronology, Eon=Phanerozoic, Era=Paleozoic, Period=Carboniferous, Epoch=Pennsylvanian.
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MacKenzie Smith posted a new activity comment 3 years, 9 months ago
3 years, 9 months ago3 years, 9 months ago@jim-barkley This might be a series of suggested taxa so there might be several posts. The lighter leaf (edges of picture) could be Winteraceae or Berberaceae.
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Sadie Mills posted a new activity comment 3 years, 11 months ago
3 years, 11 months ago3 years, 11 months ago@jim-barkley you have found a lot of great insect specimens, would you know the answer to @daniel-park’s question about how this specimen was preserved?
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Sam Ocon posted a new activity comment 4 years, 4 months ago
4 years, 4 months ago4 years, 4 months agoHi, @jim-barkley! This is a beautiful specimen! A photo with a scale bar would really improve this eMuseum entry. Thank you!
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Sam Ocon posted a new activity comment 4 years, 7 months ago
4 years, 7 months ago4 years, 7 months agoHi, @jim-barkley! Is this specimen yours or is it in a collection?
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