Based on the largest specimen of Archaeopteryx known to date, the Solnhofen specimen (it lacks a museum number, but is located in the BMM of Berlin) has been granted the most recent unique genus/species name combination, Wellnhoferia grandis, though I do not follow this.

This largest specimen is distinguished primarily on the basis of a fourth toe (of only one foot known) with only four phalanges, when conventionally Archaeopteryx and most other dinosaurs and birds have five. Elzanowski also considered the tail to be much shorter than other specimens, but the incomplete nature of the specimen makes this difficult to judge. The Solnhofen specimen is also the most robust specimen known, and has a smaller pelvis for its size than other specimens.