To identify the template Id of the list, navigate to the list and go to the 'All Items' view. In the browser, go to 'View - Source' and search for “ctx.listTemplate”. The ‘Pages’ Library will show – “ctx.listTemplate = 850” and the ‘Images’ library will show “ctx.listTemplate = 101”.
For other template types, you will need to look up the list ID. You can use the following PowerShell method to retrieve the information about the lists within the site
# Retrieve list templates and IDs
$SPWeb = Get-SPWeb "http://URLtotheSite"
$SPWeb.ListTemplates | Select Name, type, type_client, Description
$SPWeb.dispose()
Additionally, you can use the following SQL query to enumerate all the template IDs that are used in your site collection
-- Enumerate all the IDs that are used in your site collection
SELECT tp_Title as Title, tp_BaseType, tp_ServerTemplate as templateID, tp_Description as Description
FROM AllLists (nolock)
ORDER BY TemplateID, Title
The information is available in the spreadsheet at the end of this post.