Suggestion 3:
The current system is focused on known families.
This is good as it is short and intuitive.
But I suggest to harmonize all wikis to:
Horns of a X/X alt name (X family name), or looking similar.
<usual aspect & traits description>.
Real-based
Horns of a deer (cervid), or looking similar.
Pair of solid branched structures on the forehead.
May be irregular, flattened, or palmed at junctions.
Either smooth or velvety (live skin), or woody/barky (dead bone).
Worn mostly by males, shed and regrown each year.
Eastern dragon horns are similar.
I am not fond of treating antlers as horns, but it is better to have a common root, and "horn" is simple and already an umbrella term for various head prongs.
reindeer <-alias- caribou
Horns of a reindeer/caribou, or looking similar.
Like antlers, but generally bigger and worn by females too.
There are many, just because of santa's sled I guess.
Horns of cattle/cow/bull (bos), or looking similar.
Pair of solid pointy projections just above the ears.
Typically stubby, hand to head long, with slow upward/inward curve(s).
Sometimes assymmetrical or much, much bigger.
Either smooth or ridged. Made of keratin on live bone.
Horns of a giraffe, or looking similar.
Solid projections on the skull, mainly above the eyes.
Present: Columnar or conical. Past: also pointy, bulbous or antlers-like.
Made of fur on live bone.
Horns of a goat, or looking similar.
Pair of solid pointy projections on the top of the head.
Medium to thick, non-circular cross-section, size from a hand to 3× the head, curved backward and outward.
Nearly smooth to strongly ringed. Made of keratin on live bone.
Males tend to have more/bigger.
sheep horns are similar, but thicker and curlier.
Horns of a sheep/ram, or looking similar.
1 or 2 pair(s) of solid pointy projections on the top of the head.
Thick to very thick, non-circular cross-section, size from nonexistent to 3× the head, strongly curved backward and outward to the point of spiraling back.
Nearly smooth to strongly ringed. Made of keratin on live bone.
Males tend to have more/bigger.
goat horns are similar, but thiner and straighter.
I suggest adding:
Horns of an antelope, or looking similar.
Pair of solid pointy projections on the top of the head.
Thin to medium, near-circular cross-section, 1 to 2 head long, in a tight spiral pointing up and a bit to the sides.
Strongly ringed. Made of keratin on live bone.
pronghorn's look more like simplified antlers.
Horn(s) of a rhinoceros, or looking similar.
Solid pointy projection(s) centered on the muzzle (nose for fore or single, between eyes for aft).
Typically massive, hand to head long, with slight backward curve.
Either smooth or rough, colored gray or brown. Made of mineralized keratin.
Fantasy
These are much more varied, and often require clues from the character's apperance or background to pinpoint a type.
This makes it desirable to update character's wikis with known attributes. It seems good practice anyways.
Horns of a demon, or looking similar.
Come in a wide variety, relies more on the character than the horn's aspect.
Frequently similar to:
- Short cattle horns or 😈 emoticon. Common in simple illustrations and comedy.
- Long sheep horns or goat horns with elaborate curvature. Common in complex illustrations.
If on the forehead and straight, it is probably oni horns.
Horns of a dragon, or looking similar.
Come in a wide variety, relies more on the character than the horn's aspect.
If possible specify eastern dragon horns or western dragon horns instead.
I suggest this split as they tend to be quite different.
eastern dragon <-alias- ryu
Horns of an eastern dragon/ryū, or looking similar.
Generally similar to antlers, but straighter, with less or no forks, and facing back.
Horns of a western dragon, or looking similar.
Generally similar to cattle horns, but strongly patterned, more numerous, and strongly bent forward or backward.
Horns of an oni or eastern ogre, or looking similar.
Single or pair of solid projection(s) on the forehead.
Rather slim and pointy, palm to head long, straight up with slight bend backward.
Smooth, skin-covered or same color as the skin.
There is tendency for onis to have 2 and eastern ogres 1, not sure if it makes sense to split.