Is there a level of classification in fossil labeling below cf.? E.g. I have a unidentified tooth similar to a tyrannosaurid, I'm not comfortable labeling it as cf. Tyrannosauridae indet. as it lacks diagnostic characteristics.
However, I think that's still a possible family due to its size and morphology. If I don't want to call it cf. Tyrannosauridae indet. or Theropoda indet., what can I label it as?
As I understand, the surety of classification goes from: Tyrannosauridae indet. > ? Tyrannosauridae indet. > cf. Tyrannosauridae indet.
Can I write something like:
Fossil tooth
Probably Tyrannosauridae indet.
66.8 - 66 Ma | late Cretaceous
Hell Creek Formation
Montana, USA