Have a look at Issue fields and statuses, it lists the standard fields. It also depends on what project template used, some of the fields only applies to Jira Software. You can always create a new project using one of the templates, that will also create the default screen for it.
Just to put this reply here for those coming in via Google -- I tried to make a new project using the templates, and the default screen was used, but that default screen was still modified in the same way. So even though it's a "new" default screen, because the "original" default screen was modified, I'm seeing the same modifications brought over to the new project.
Curious as to why there is no "Restore Defaults" link like in Field Configurations.
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