dominant physical characteristics

[Aliw1995]

Is there a list anywhere of which characteristics are dominant v recessive? For example, long head v short head, high tail carriage v low tail carriage? Roman nose v dished?

[BlackOak2]

Is there a list anywhere of which characteristics are dominant v recessive? For example, long head v short head, high tail carriage v low tail carriage? Roman nose v dished?

There may be some off-site lists, personal lists. But an all inclusive list of genes for the site does not yet exist. There are a lot of separate gene posts dedicated to specific genes, such as Lp and sooty.
Of the examples you expressed, these are handled by 'how much you have in the cup' type of genes. In essence, the more you have of the roman nose, the more expression you'll get of the roman nose.
Searching for specific genes you have a question on will bring up (among other posts) the gene discussions you're looking for.
To begin with (those off the top of my head), Pony manes are dominant to thin manes, long manes are recessive to short manes and upright manes are recessive to laid-over manes.
Feathers are recessive and work off of an incomplete, if you have only one feather gene, you'll get a little feathering versus the full feathering with both genes. However there is more at work. You can have a horse that never develops feathers that will throw foals with feathers. These horses will often show a white coronet.
I can help further with direct answers to some of the genes (I'm off and on right now, so it may take me awhile to respond).

[Lekara]

To begin with (those off the top of my head), Pony manes are dominant to thin manes, long manes are recessive to short manes and upright manes are recessive to laid-over manes.

Thank you,BlackOak! I'm just about to start focusing on getting the manes on my horses long and full. (After all - an Andalusian with a short mane is hardly an Andalusian! )
This information was helpful to my plans - thank you!