Bajaichthys
Bajaichthys is an extinct Ypresian zeid from the Monte Bolca Lagerstätten of Italy. It contains a single species, B. elegans, and is the only member of the family Bajaichthyidae.
Anatomy and appearance
The holotype is four centimeters in length. It has a deep, oblong-shaped body, a deep, but short head, a long tail composed of 27 caudal vertebrae, a long, crest-like dorsal fin, a long, banner-like anal fin with 29 to 30 rays running from the posterior region of the body down the entire length of the tail, and two enormous, wing-like pelvic fins.The holotype was originally described as the remains of a larval form due to its small size and due to its strong similarity to the larval form of trachypterid ribbonfish.