Ammojoe Posted January 26, 2012 Share Posted January 26, 2012 (edited) It's about time that I showed off a few more of my Lias Ammonites, I'll try to get more photos up soon. Anyway, to wet your appetite here is a few specimens from my collection. The ammonites will be listed in the following way, identification (Genus, and species, if known), Location, precise horizon. Dactylioceras commune (SOWERBY 1815), Kettleness, Upper Lias, bifrons zone, commune subzone: Dactylioceras athleticum (SIMPSON 1855), Port Mulgrave, Upper Lias, bifrons zone, commune subzone: This ammonite certainly has a story behind it. It's very pathological, evidently it suffered damage from a Dacryomya ovum. Regards, Joe Edited January 26, 2012 by Ammojoe Kind regards, Joe Link to comment Share on other sites More sharing options...
Kosmoceras Posted January 26, 2012 Share Posted January 26, 2012 They are beautiful! Very nice specimens, I always like seeing your collection. Can't wait to see more... Link to comment Share on other sites More sharing options...
Sinopaleus Posted January 26, 2012 Share Posted January 26, 2012 It's about time that I showed off a few more of my Lias Ammonites, I'll try to get more photos up soon. Anyway, to wet your appetite here is a few specimens from my collection. The ammonites will be listed in the following way, identification (Genus, and species, if known), Location, precise horizon. Dactylioceras commune (SOWERBY 1815), Kettleness, Upper Lias, bifrons zone, commune subzone: Dactylioceras athleticum (SIMPSON 1855), Port Mulgrave, Upper Lias, bifrons zone, commune subzone: This ammonite certainly has a story behind it. It's very pathological, evidently it suffered damage from a Dacryomya ovum. Regards, Joe great dactioceriids! :) nice ammos! soo the ammo was wounded by a bivalve? can you tell me how? Link to comment Share on other sites More sharing options...
Ammojoe Posted January 26, 2012 Author Share Posted January 26, 2012 Thanks Thomas, and Henry! I'm not actually too sure how the damage occured, I presumed that the damage was related to the missing section of the Dactylioceras, which has the imprint of a Dacryomya. I'd be interested in further opinions regarding the pathology? The imprint plausibly coincides with the pathology, so perhaps the dacryomya somehow became lodged onto the dactylioceras, and as a consquence impacted on the normal growth, causing the pathology - perhaps? Joe Kind regards, Joe Link to comment Share on other sites More sharing options...
Sinopaleus Posted January 26, 2012 Share Posted January 26, 2012 that is interesting. perhaps Dacryma is parasitic? Link to comment Share on other sites More sharing options...
Axelorox Posted January 26, 2012 Share Posted January 26, 2012 perhaps Dacryma is parasitic? Now that is an interesting thought. Ammojoe, if you could get some more info on the pathology it could lead to some very interesting stuff. Link to comment Share on other sites More sharing options...
squalicorax Posted January 26, 2012 Share Posted January 26, 2012 Possible post-mortem feeding? My Flickr Page of My Collection: http://www.flickr.com/photos/79424101@N00/sets Link to comment Share on other sites More sharing options...
Boneman007 Posted January 26, 2012 Share Posted January 26, 2012 In the DFW area lower cretaceous there is a genus Oxytropidoceras that is commonly "bent". I've always wondered why... Link to comment Share on other sites More sharing options...
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