No, that's not true. There are young earth creationists and there are old earth creationists. I understand that you are a young earther, but nothing in the article you linked to argues against a 250 million year extinction date for trilobites. I'm afraid you're going to have to try again.
Trilobites are all dead just like dinaosaurs. Because you and evolutionists say they are millions of years old doesn’t make it so. For you to ask me to show you a younger one is really hilarious.