Hi, @hope-scheff – You can add in some of the higher order classification such as Kingdom Animalia > Phylum Chondrichthyes. I’m seeing some conflicting ordinal assignments Odontaspidida v. Lamniformes so I’ll let @fauve-wilson chime in on that.

You can use Macrostrat to figure out the geochronology:…[Read more]

Hi, @hope-scheff – you can update your classifcation to include Kingdom Animalia > Class Condrichthyes > Order Carcharhiniformes. Are you interested in getting more specific? I can tag in some of our shark experts.
Here is some information on the Hawthorn to help narrow in your time periods:…[Read more]

Hi, @hope-scheff – Do you think Negaprion is the genus of this fossil? It would be better suited in the genus spot rather than the common name spot.

You can add in the geochronology by using this map to find the locality you were at to get the information: https://macrostrat.org/map/#/z=10.7/x=-82.3217/y=29.7107/bedrock/lines/