Holostei

Day three of the Twelve Days of Fishmas! Day two can be found here. The tag for the whole set will be here. On the third day of Fishmas cladistics gave to me... Three genera of HolosteanTwo ChondrosteiAnd a bichir at the base of Actinopterygii Three's...not quite a crowd Next up the family tree, the Holostei, represented by the three modern genera. Two are gars, Lepisosteus and Atractosteus (the latter of which are notable for their heavier snouts and generally…