tag:blogger.com,1999:blog-6286447219062105861.post6622779001131757209..comments2023-06-29T10:51:34.278-04:00Comments on Caribbean Paleobiology: What is this?J. Velez-Juarbehttp://www.blogger.com/profile/13939389115952799046noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-6286447219062105861.post-72598352145101697802011-11-09T03:28:57.243-05:002011-11-09T03:28:57.243-05:00The spiraling dentine in this tooth fragment indic...The spiraling dentine in this tooth fragment indicate it's a Narwhal incisor; walrus and elephant tusks don't spiral like this (some fossil proboscideans may exhibit some spiraling, but IIRC, it is not as tight and the tusk is less perfectly cylindrical).Robert Boesseneckerhttps://www.blogger.com/profile/04157434108254005433noreply@blogger.comtag:blogger.com,1999:blog-6286447219062105861.post-78135379980759301332011-11-07T18:46:28.207-05:002011-11-07T18:46:28.207-05:00I'm sure I'm wrong, but to me it looks lik...I'm sure I'm wrong, but to me it looks like a Norwhal tusk... Certainly it'll be something prehistoric and convergent, but I only know Norwhals ;)traumadorhttps://www.blogger.com/profile/00387315561167115253noreply@blogger.com