Answer:
the Rhyniognatha hirsti
Explanation:
at age 400 million years old
kg, mg. 65.00, 65,000,000. 65.01, 65,010,000. 65.02, 65,020,000. 65.03, 65,030,000. 65.04, 65,040,000. 65.05, 65,050,000. 65.06, 65,060,000.
df dffdffdfd dffd ff d
df fd df f df df dfdf f fdf df df df fd
75.47
AS WE CANT WEIGHT AIR THE ANSWER IS CORRECT