Does it have flowers??? Yours kinda look like the Black Anthurium but more pointed and a bit into triangular shape
I have one somewhat similar (but not exactly) which is an as yet undescribed species. Mine is from Colombia. DO you know where yours ins from?
Love those Anthurium! Jorge, it's really tough to ID these kind of aroids from just juvenile leaves. There is massive variation from seedling to juvenile to mid to mature leaves. They can often look nothing like their earlier forms. Multiply that by their massive variation in leaf form from one plant to the next... it's surprising how many forms there can be of the same species. Here's one example with a deeply lobed form of Philodendron hastatum at NSE Tropicals, and then a more common form you often see for sale without any lobes at all.
Here's another one, a Philodendron bipennifolium hybrid 'Jerry Horne' from Brian's Botanicals that looks similar to your plant, but it looks almost nothing like a typical P. bipennifolium. Philodendron barrosoanum is another one that can have a similar skinny+deeply-lobed form when very young but gets much fatter with age. Here is one particular Anthurium falcatum at Ecuagenera very similar to your plant, but again not at all similar to the typical leaf form.
Thanks for your comments, this anthurium is from Mexico. I think I managed to discover its name and it is an Anthurium chiapasense