I have an alien race that is carbon-based, like life on Earth, but this alien life uses different essential elements in their biochemistry than those elements used on Earth.
I'm trying to come up with a a naming element convention that the aliens might use that allows them to uniquely distinguishes between our (Earth-based) carbon-based life and their alien carbon-based life.
For example, suppose that the aliens contain hydrogen, carbon, oxygen, but not nitrogen. Hypothetically, these aliens dub life on Earth as nitrogen-unique life forms. (This is one example, but I'm wondering if there is something a little more scientific or concrete.)
What is a naming element convention that distinguishes different forms of life based on the unique essential elements in their biochemistries?