Is this a dendrobium or oncidium?

[Lilac]

Hello everyone! Praying everyone is safe and in good health in these trying times. I bought this plant last year with it's beautiful orange curly leafed petals. The tag had the name and that it was a dendrobium. I was also told by the seller. But as I look at the leaves they look more like oncidium to me.

I cannot find any information on it though. Any info will be greatly appreciated. Thank you.