Search the Community
Showing results for tags 'ripple marks'.
I’m very curious about these “ripple marks” that I have seen posted a few times on the forum. From what little research I have been able to do (so far...) they seem to be caused by wind or water erosion of the rock. However, there is mention of them possibly being fossilized rippled sediment from the floor of a body of water. So... are these geological erosions or some type of fossilized evidence of water movement? I can see how the erosion would work, but wouldn’t the sediment be compressed during lithification/fossilization and destroy the details if it was from a body of water
I have had these and others in my collection for about 27 years, most of them have been wrapped up or still are wrapped up since I collected them with my son. I always classified them as Ripple Marks, but wonder if they are, we collected them a little to the West of Sundance, Wyoming in exposure that is supposed to be from the Upper Jurassic / Morrison Formation. What is your opinion?? Top of Plate Bottom of Plate
HoJoon posted a topic in Fossil Hunting TripsHello again!! I visited the southern part of Humber river in Toronto, ON on Oct.15.Sun. Actually, I went there on the way to go to see new homestay(Eventually, I moved elsewhere because of the distance. My ex-landlady urged me to move out 'cause she wanted to give my room to her daughter. The result is better 'cause of food quality. Last one was really terrible). Anyway, the total distance was about 58.6km for round trip(Actually, the distance was about 32km from my last homestay to Humber river. But I took the subway after got to the downtown when I came
Just something for the group, I was just wondering if any one else would like to see a category dedicated to Trace Fossils? I like looking up info and seeing pictures on different Trace Fossils and find myself opening various topics and really finding what I am looking for. I think it could be something as simple as adding it to the "Collections" section with a category titled "Trace Fossils", and that could include sub-categories for trackways, coprolites, burrows, predation evidence, ripple marks / rain drops, trails, etc., or just lump it all under Trace Fossils. If not in the C