The Permian-Triassic extinction was also caused by impact, but the candidate crater hasn’t been identified.
I read a book about the Permian extinction by geologist who didn't think the extinction was caused by an asteroid because there was no iridium layer associated with it. He believed the extinction was associated with the Siberian Traps and the release of enough magma to cover Western Europe over the course of one million years.
When I was an undergrad and graduate student, impacts were poo pooed by the crusty old curmudgeons that ran the show, and all that continental drift was clearly daft.
Scientific understanding advances like a glacier, quite slowly and the nonsense is eventually cast aside as some lateral moraine. So will be the remains of today’s climate change rantings in good time.
I know there is evidence of one but, to me, unless it caused the Siberian Traps, it was icing on the cake, so as to say. That was the largest extrusion of lava of which the geological records remain. There is also some thought that the Deccan Traps contributed to the K-Pg extinction.
There are two obvious impact remnants framing the northern and southern extents of South America.