A cladogram is a stylized diagram that looks like a series of Y's or forks in a road. At each branch, or Y junction, novel characters of evolutionary origin are used to separate off one group from the rest. Cladograms can be constructed for any group of organisms.
I checked with the bubbly brain on staff, Bruce Sanderson (who reviews Champagne for Wine Spectator), and he says, Champagne can age well. High acidity and carbon dioxide act as preservatives as it ages in the bottle prior to disgorgement. After disgorgement, Champagne will develop like a still wine. If the quality is high (i.e., an excellent vintage-dated bubbly) and it is well stored, Champagne is capable of long aging.
Even better is a wine that is made in a oxidative way. By deliberately oxidizing a wine during ageing it becomes less vulnerable to oxygen e.g. a 30 year old bottle of vintage port should be drunk quick (1â3 days) while a bottle of 30 years old tawny port can be opened for at least a month or two.