Hi @isabelle-guthery do you have any associated location of geologic context information with these three specimens? If so, could you add it so we can try to narrow down the identifications of these specimens. If not, let us know if we can help!

Hi @isabelle-guthery, based on the location of your fossil, it is likely cretaceous in age. Possibly from the Eagle Ford or Woodbine formation.

Hi, @Isabelle-Guthery! Could you use macrostrat: https://macrostrat.org/map/#/z=1.5/x=16/y=23/bedrock/lines to figure out what age this is?