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Showing results for tags 'gastropod'.
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
- gastropod
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From the album: Texas Cretaceous Fossils : Gastropods
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- anchorage
- austin chalk
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From the album: Texas Cretaceous Fossils : Gastropods
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- austin chalk formation
- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
- gastropod
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
- drepanochilus kiowanus
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From the album: Texas Cretaceous Fossils : Gastropods
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From the album: Texas Cretaceous Fossils : Gastropods
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- cerithium bullardi
- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- arrhoges tarrantensis
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From the album: Texas Cretaceous Fossils : Gastropods
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
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From the album: Texas Cretaceous Fossils : Gastropods
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From the album: Texas Cretaceous Fossils : Gastropods
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- cretaceous
- fusus haysensis
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From the album: Texas Cretaceous Fossils : Gastropods
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Several gastropods from Galena Formation near Decorah Iowa
tombk posted a topic in Fossil Hunting Trips
I was recently near Decorah, which is in northern Iowa and near the border with Minnesota. The predominant bedrock there is the Galena Formation. It is chiefly limestone with some interbedded shale. I was there only one full day and had other things to do (other than look for fossils, that is, if you can believe it). I did visit one road-cut along highway 52. I am not geologically informed enough to know what member of the formation was exposed at the road cut, so the closest I can get to dating it is to say that it’s upper Ordovician. The road cut was not a place I’ll visit again. Few fossils. But I did come across a few gastropods that I want to show here. And I have one question in the middle about clockwise vs counterclockwise growth in gastropods. I think 3 are Liospira species: Another looks similar but spirals from the umbilicus outward in a clockwise direction out from the rock (that is, toward the viewer looking at the rock) rather than into the rock as the others do. Any thoughts on this reversal of direction? Can it occur in the same genera or species? A possible Sublulites species: And an internal cast of a Hormotoma species (the first cast of such I’ve found where the whorls don’t touch each other). thanks for reading my mini-adventure, Tom- 8 replies
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A number of years ago I was working in Jordan and not far outside Petra we stopped for a coffee by a little roadside stall. Not far away I noticed a kid selling various rocks on an upturned cardboard box. He looked dirt poor so to help him out I bought a number of different shapes and sizes just so he could make a sale. It wasn't until later on I noticed one of the rocks had what looks to be small Gastropods in the rock. Can anyone confirm these are Turritella? Thanks Paul