Chattian genera

The moonfish of the genus Mene, the sole extant genus of the family Menidae, are disk-shaped fish which bear a vague resemblance to gourami, thanks to their lateral compression and thread-like pelvic fins. Today, the genus is represented only by Mene maculata of the Indo-Pacific, where it is a popular food fish, especially in the Philippines, where it is known as bilong-bilong, chabita, hiwas or tahas.

Xenomorphia is an extinct genus of parasitoid wasp comprising two species: X. resurrecta (the type species) and X. handschini. The generic name is in reference to the parasitic Xenomorph creature starring in the Alien franchise. The wasp's first fossils were discovered in Oligocene (Chattian) aged phosphorite mines located in the former Quercy province of France, the remains of 55 ancient fly (Phoridae) pupae were found preserved with Xenomorphia wasps inside of them, recording a parasitic relationship between the two insects. Along with the two Xenomorphia wasp species, two other new wasp tax