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Showing results for tags 'early devonian'.
Found 19 results
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The Devonian period is known as "The Age of Fish", but could also be known as "The Age of Brachiopods." In the Early / Lower Devonian, brachiopods reached the height of their diversity towards its end in the Emsian. We see the ancestral groups occurring, lingulids, craniids, orthids, protorthids, pentamerids, rhynchonellids and strophomenids, as well as the later successful groups we have seen before such as atrypids, athyrids and orthotetids, plus the rise of spiriferids, spiriferinids and productids and the beginning of the terebratulids. By the end of the Devonian , several of these groups are extinct or severely reduced in importance and brachiopods never quite recover. Also, the Devonian is the last time we see trilobites with such variation, large sizes and numbers and orthocerids too are much more uncommon after the rise of the goniatites. The massive tabulate coral reefs also disappear after the Devonian. Fascinating period and I hope to share some of its wonders with you. Equally, a lot of this is rather new to me, so I would be very grateful for any assistance, corrections or further information on my specimens. Thank you. The Early Devonian epoch is split into three stages, so let's start with the first of those, the Lochkovian, that began about 419 mya and finished roughly 411 mya. I have been sent a nice selection of brachiopods from the Kalkberg Formation, Helderberg Group by the Mighty @Misha, mostly. But the kind gentleperson also sent me this fascinating little bryozoan hash : It is dominated by fenestellids, which is usually the case in the Devonian, but other orders sill occur. These ones, I think, are Fenestella, but there are so many species in the formation that I wont take a guess as to species : Not sure what this one is ;
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- aguion formation
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Found digging out in the needmore shale of WV so early to mid Devonian. It’s broken but I believe the full thing to be shaped kind of like the bendy part of a bendy straw when stretched out. So a crinkled tube that’s been squashed a bit by geological forces. Texture on it is a three dimensional crosshatch, kind of textile-like. My first guess was some kind of bryozoan, but I honestly don’t know
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Hello, I would like to know whether or not this is a fossil on top of this rock? Is it just weathering? It is from my yard in middle Tennessee.
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Hello, I am hoping some of the fossils on this hash plate from my yard in middle Tennessee can be identified. Could any of these be from a very small shark?
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Hello, I think this is a crinoid, but am hoping somebody will let me know which type? I found it in a creek in middle Tennessee.
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Hello, I’m hoping someone will let me know if this rock has some type of fossil in it? I found it in a creek in middle Tennessee. After cleaning it with vinegar and water, several little black spots became visible. Are those fossil imprints of some sort?
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- early devonian
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Hello, I’m hoping someone can let me know what caused the three indentations in this rock? Weathering? Some type of track? Something previously embedded in the rock?
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I’m wondering what this fossil would be? Is it a sundial shell? It is on a slab of rock which was used as a pathway stepping stone in my yard in middle Tennessee.
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I would like to know whether or not this is a concretion? What is in the center? It is a middle Tennessee creek find.
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I’m hoping someone will let me know which types of fossils are on this rock? It is from my yard in middle Tennessee.
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I’m hoping someone will tell me which type of fossil I have? I think it is interesting because such a narrow piece is intact. It is from my yard in middle Tennessee.
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I’m wondering if this could be a coprolite? I found it in a creek in middle Tennessee.
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Hello, I found this in a creek in middle Tennessee. Is it a concretion or some type of fossil?
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Hello, I would like to know if this is a type of fossil, or a discoloration on the rock. And if it is a fossil, what is it? I found it in my yard in middle Tennessee. Thanks.
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Hello, I would like to know if this rock has some type of fossilized plant imprint? I found it in my yard in middle Tennessee.
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I am hoping someone will tell me which type of fossils are in this rock? It is from my yard in middle Tennessee. Thanks.
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Can someone tell me which type of fossils these two items are? I found them in a creek in middle Tennessee. Thanks.
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From the album: Trilobit 2
Trilobite for example Cavetia sp Phacops Acastoides Leonaspis Kettneraspis Diademaproteus.... -
Lower Devonian Unknown find from Montague, NJ. - Hypostome?
Fossildude19 posted a topic in Fossil ID
On 12/5/2016, I was lucky enough to get out and hunt with Gordon C and JeffreyP , in the Lower Devonian area in Montague, NJ. known as Trilobite Ridge. I made many good finds, but did come across an unknown item. (at least to me!) I am unsure of what it is - either a ventral cephalon of a trilobite, or a single valve of a brachiopod. Any assistance/ideas welcome. Lower DevonianPort Jervis/Glenerie FormationsTristates GroupTrilobite RidgeMontague, NJ. Thanks for looking. Regards,
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