It’s been confirmed by Google that the company is rolling out a new design for Sitelinks. Sitelinks are additional links found within snippets of search results that allow searchers to jump quickly to important and relevant pages on that site, rather than to the main listing in the search result snippet.
Over the course of a year, Google has been testing a carousel format for these Sitelinks, and today, they have confirmed that they’re now rolling out the new carousel-based design for mobile search results.
You can easily swipe left to right and back again across the sitelinks, revealing more important and relevant links from the site on the topic you search.
At this time, I was unable to replicate this feature.