I am a family.
A member of me is so cute.
Drawing my last four over my first two might perish this age.
My counterpart makes a letter and a number.
What am I?
I am a family.
A member of me is so cute.
Drawing my last four over my first two might perish this age.
My counterpart makes a letter and a number.
What am I?
I'm pretty sure you are a
Feline
I am a family.
I think the family of cats is Felidae but can is also referred to by the adjective feline.
A member of me is so cute.
Drawing my last four over my first two might perish this age.
Drawing a line over Fe (iron) might perish this age - as clarified by the OP, this refers to $\overline{Fe}$, the anti-matter counterpart of iron which could cause us to perish (originally, I had thought this referred to the end of the Iron Age or the elimination of iron, in general).
My counterpart makes a letter and a number.
My counterpart might be a canine or K9, for short.