Dimitris Posted May 23, 2020 Share Posted May 23, 2020 Hello everyone! Today, on my way back from Jurassic hunting, I stopped on a small river I had seen the other time. The location is this 43.297077, 23.397995 Picture shown on google is either irrelevant to exact location or something I have not seen. Anyway, the location as per Rockd is Early Cretaceous. I cannot find a geological map for the exact location. The closest known to me is Maastrichtian, 30km SW. In the area around, there are confirmed Eocene formations as well. The site is characterised by dark shales, which are very loose and easy to split even with bare hands. The fossil is this: Imprint left from its shell on the other side of the stone. I tried to find other fossils in the area around in hope to find something distinctive to determine age. One brachipod and maybe a part of an ammonite. The place where I found the fossil is this General aspect on the other side I have not visited, due to the river. It is what is seen from the road. Link to comment Share on other sites More sharing options...
Dimitris Posted May 23, 2020 Author Share Posted May 23, 2020 Better pictures taken at home Overall diameter is 22cm. The last picture was found on the same formation 800m further than the fossil. Looks like fragment of ammonite, though I am not sure. Link to comment Share on other sites More sharing options...
caterpillar Posted May 23, 2020 Share Posted May 23, 2020 Take a look at Inoceramus 3 http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
Dimitris Posted May 23, 2020 Author Share Posted May 23, 2020 Thanks a lot! I think the fragment on the field is inoceramus labiatus, which would make the formation Early Turonian, as per this article: http://www.geologicacarpathica.com/GeolCarp_Vol50_No2_193_198.html It refers to Eastern Bulgaria for a different stratigraphic unit, but the inoceramus labiatus shall be indicative for my location as well. The outcrop I collected is very small, a stripe of 0.4m wide and 15m long that continues under the river. 300m East though, the formation is more than 30m thick, exposed on a cliff. I will visit again Link to comment Share on other sites More sharing options...
Darbi Posted May 25, 2020 Share Posted May 25, 2020 I'm sure it's Inoceramus. It's quite abundant from Albian and even more from Cenomanian and Turonian in my area (central Kansas). Here's a picture of my Inoceramus from Albian. 1 Link to comment Share on other sites More sharing options...
Dimitris Posted May 25, 2020 Author Share Posted May 25, 2020 14 hours ago, Darbi said: I'm sure it's Inoceramus. It's quite abundant from Albian and even more from Cenomanian and Turonian in my area (central Kansas). Here's a picture of my Inoceramus from Albian. Yes the shell structure close to the scaling cube looks identical. I was wrong with the age of the formation though. On 23/5/2020 at 9:20 PM, Dimitris said: I think the fragment on the field is inoceramus labiatus, which would make the formation Early Turonian, as per this article: http://www.geologicacarpathica.com/GeolCarp_Vol50_No2_193_198.html It refers to Eastern Bulgaria for a different stratigraphic unit, but the inoceramus labiatus shall be indicative for my location as well. The outcrop I collected is very small, a stripe of 0.4m wide and 15m long that continues under the river. 300m East though, the formation is more than 30m thick, exposed on a cliff. I will visit again It is middle Aptian to Albian as per this geological map I found yesterday. Sumer Formation: Marl stones, clayish limestones, and sandstones. Thanks everyone for your help! I will soon visit again this place. 1 Link to comment Share on other sites More sharing options...
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