johnnyvaldez7.jv Posted June 3, 2023 Share Posted June 3, 2023 Went out for a couple of hours today and came back with some good stuff and lots of questions about different things I found. I haven't had a chance to clean the specimens up and will this evening... but I'll start with this one. Pretty sure this is a piece of tusk. I can see the cross bands in some of the images. Is the entire thing enamel? Don't know anything about enamel. I see what looks like 2 layers... are both completely enamel? Also... how would you know whether it came from a mammoth or a Mastodon? Found in SE Texas on a gravel bank. 1 4 Link to comment Share on other sites More sharing options...
Brandy Cole Posted June 4, 2023 Share Posted June 4, 2023 So you may already know that the angle of Schreger lines (concave vs convex) helps to determine between mammoth and mastodon. And in South Texas, we also had gomphothere. I'm terrible at keeping the differences straight, but this post may be useful to you. 5 Link to comment Share on other sites More sharing options...
johnnyvaldez7.jv Posted June 4, 2023 Author Share Posted June 4, 2023 @Brandy Cole Thank you. I'll definitely check it out. Link to comment Share on other sites More sharing options...
Lorne Ledger Posted June 4, 2023 Share Posted June 4, 2023 There is also Cuvieronius tropicus in south texas. Tusks from them can be differentiated by a groove that spirals on the outside of the tusk. I have found two such tusk fragments on the brazos river in the past. That is the texas gomphothere. 1 Link to comment Share on other sites More sharing options...
johnnyvaldez7.jv Posted June 4, 2023 Author Share Posted June 4, 2023 @Lorne Ledger Thanks Lorne! Did either of those fragments look like this sample? Link to comment Share on other sites More sharing options...
Lorne Ledger Posted June 4, 2023 Share Posted June 4, 2023 no they did not. What you have there is either mammoth or mastodon in my opinion. 1 1 Link to comment Share on other sites More sharing options...
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