Science dreadnought

In starship classification, the science dreadnought was a type of dreadnought based on cruiser and science vessel classes. In the early 25th century, this designation usually included physically large, powerful starships. Members of the Alpha Quadrant Alliance used this classification for their own and captured ships but did not apply it to vessels operated outside the AQA. It included tier 6-rated vessels. 

List of dreadnought cruiser classes

 * Krenim Annorax Science Dreadnought
 * $𝜇$ Paradox Class Temporal Dreadnought
 * Son'a Collector Science Dreadnought
 * Son'a collector
 * Cardassian Intel Science Dreadnought
 * Son'a collector
 * Cardassian Intel Science Dreadnought

Variations
The Annorax-class was the first designated science dreadnought. Both the Annorax and the Paradox were also timeships. The Damar was also an intel starship.