It is in the Oncidium Alliance.
Has some Odontoglossum in its parentage but it is not Marfitch. Marfitch are much more starry shaped and 5"vertical. This might be some type of Odontocidium (Odontoglossum X Oncidium). Exact parentage is very difficult to research. Hybrids can be so complex considering some are in their 7th, 8th or 10th generation breeding wise.
I would also like to say that google can be a useful source for information but I find it to be only marginally reliable. A great program for research and how to grow orchid species is the Orchid Wiz. Check it out
@orchidwiz.com. I am a judge for the American Orchid Society and it is simply the best tool out there!