Of course its not part of the text.
It is an emphasis on what the text of Gen 5:2, posted below it, says and what it clearly implies verbatum, in that the first man and women are called Adam, the way scientists today might might call a kind of species Homo erectus or Neanderthal man.
That IS my interpretation of what the verse is telling us.
That meaning is consistent with the other interpretations made by Theistic Evolution which sees the 22 links to Modern man as the same idea in Paleontiology as it is in Genesis.
How is this liberty different from those people who will need to interpret the direct King James statement to mean that Adam is used as a generic term?
How is it different when they say "Adam" means mankind in this special case?
They MUST say that us the case beause otherwise, their whole interpretation isn't consistent.
The difference is quite clear.
The use of "Adam" in those instances comes directly from Hebrew translation.
Strong's Concordance H120 as opposed to Strong's H121.
Examples:
Gen 1:26 And God said Let us make
adam in our image...
Gen 2:5 And every plant of the field before it was in the earth, and every herb of the field before it grew : for the LORD God had not caused it to rain upon the earth, and [there was] not
an adam to till the ground.
Gen 2:8 And the LORD God planted a garden eastward in Eden; and there he put
adam whom he had formed .
Gen 2:15 And the LORD God took the
adam and put
him into the garden of Eden to dress it and to keep it.
Gen 2:18 And the LORD God said ,
[It is] not good that adam should be alone; I will make him an help meet for him.
The word literally means "man." Beyond that, you cannot claim that the word alone can imply a race, nationality, or species. There is no intent of "particular species" built within the word.
However, to use the word, as opposed to the namesake "Adam (H121)" in generic terms of mankind is acceptible according to the literal definition.
That is the fundamental difference between what biblical scholars do when they are careful to note the difference between the two distinct words which English speakers are familiar with as "Adam" and what the unlearned attempt to do to force private interpretations.