Axelorox Posted November 28, 2014 Share Posted November 28, 2014 Hello all, I currently have a few assorted ammos in collection I'd like to get ids and more info on. This one is from Peru. I've tried finding info on similar ammonites online but there isn't much. So far all I can gather is that they seem to come from a locale referred to as Huanzala Ancash. This is a pyritized Volga River from the Oxfordian Jurassic I think (160 m.y.o.) - any ideas as to genus and/or species? This is supposedly from the Aptian (120 m.y.a.) Cretaceous of Dallas Texas. I'm thinking this is a German Pleuroceras spinatum, but have a bit of a hard time believing that considering I picked it up for $5 from some assorted minerals dealer at a show. Last one is supposedly a Hoploscaphites from the Cenomanian/Albian of Chile (100 m.y.a.). However I am having a very tough time finding information on Chilean ammonites online - is anyone here more familiar with them? Link to comment Share on other sites More sharing options...
Ludwigia Posted November 28, 2014 Share Posted November 28, 2014 I can't say much to the other ones, but I can confirm definitely that your $5 ammo a Pleuroceras spinatum is. If it's a small one, then the price would fit. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Axelorox Posted November 28, 2014 Author Share Posted November 28, 2014 Thanks for the confirmation. It's a bit over 1 1/8" in diameter Link to comment Share on other sites More sharing options...
Ludwigia Posted November 28, 2014 Share Posted November 28, 2014 (edited) Thanks for the confirmation. It's a bit over 1 1/8" in diameter As I figured. It's more than likely either an old find from Untersturmig or else a more recent one from Buttenheim, both just a few miles from each other in Bavaria. They are both pits in Pliensbachian clays. Untersturmig closed down many years ago and Buttenheim has taken its place both commercially and fossily. http://www.thefossilforum.com/index.php?/topic/17616-last-stop-in-southern-germany-on-this-trip/?hl=stop Edited November 28, 2014 by Ludwigia 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Axelorox Posted November 29, 2014 Author Share Posted November 29, 2014 Thanks for the specific info! Always good to have that stuff for reference purposes. Link to comment Share on other sites More sharing options...
Axelorox Posted November 30, 2014 Author Share Posted November 30, 2014 Bump. Especially curious about the supposed Chilean ammo Link to comment Share on other sites More sharing options...
milou115 Posted November 30, 2014 Share Posted November 30, 2014 Hello ! #1 : Brancoceras (Eubrancoceras) aegoceratoides : Albian from Chile #2 : Kosmoceras sp. : Callovian or Oxfordian #3 : Colinoceras tarrentense : Cenomanian, USA, Texas #4 : Pleuroceras spinatum => Ludwigia has already said everything and even more ! #5 : Never seen that kind of ammonites from Chile, it looks american to me ! Bye Emile 1 Link to comment Share on other sites More sharing options...
Axelorox Posted November 30, 2014 Author Share Posted November 30, 2014 Thanks for the ids! I guess the store I bought the first one from had them mislabeled. Link to comment Share on other sites More sharing options...
Wrangellian Posted December 1, 2014 Share Posted December 1, 2014 #1 : Brancoceras (Eubrancoceras) aegoceratoides : Albian from Chile Is this correct? I have one of these too and the info I can have says: Prolyelliceras sp. Albian Huanzala, Huanuco Dept. Peru. Link to comment Share on other sites More sharing options...
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