> What kind of spider in Missouri has skull on it's back? Is it poisonous?

What kind of spider in Missouri has skull on it's back? Is it poisonous?

Posted at: 2014-11-15 
Probably one of the harmless cobweb spiders, but I would have to see the spider to be certain.

In any event, this will be a harmless spider.

The only spiders you have of any concern are the black widows and brown recluse.