Quick infos I gathered:
- Some names from the Shock Troopers credits appear on earlier SNK games like Street Smart (Masato Mioshi) or Ghost Pilots (also Mioshi & Kenji Ishimoto). This suggest that SNK designers were borrowed to Saurus for support [source: mobygames]
- Saurus worked on the port of Art of Fighting 2 for the Super Nintendo from 1994, which apparently marks the earliest collaboration between Saurus and SNK and maybe the time frame of their origin, too(?) [source: gamefaqs]
- They ported their own games (SW 1+2, Ragnagard) to both Saturn and/or Playstation, just like SNK did [source: mobygames]
- Quiz King of Fighters is Saurus' first Neo Geo game (MVS 1995/02/01), followed by Stakes Winner (1995/09/27) [source: neogeomuseum]
- The french wiki page on Saurus links
this archived site as the official Saurus internet presence. Hmm... [source: wikipedia]
- Trivia: The Sharp Zaurus is the name of a series of personal digital assistants (PDAs) made by Sharp Corporation. The Zaurus was the most popular PDA during the 1990s in Japan and was based on a proprietary operating system. The japanese spelling of Zaurus is apparently the same as Saurus ザウルス [source: wikipedia]
...unfortunately, nothing really in-depth.