User:Abyssal/Aguja Formation/fish sandbox

National Park Service Fishes
Big Bend National Park The various Cretaceous strata here have produced abundant fish fossils. Boquillas Formation (Turonian) Fish bones and shark teeth. Pen Formation (Campanian) Xiphactinus ray Ptychotrygon gar Sharks are well knwon from both the Pen and Aguja Formations. Lissodus selachos Squalicorax kaupi Cretorectolobus olsoni Ischyrhiza mira Scapanorhynchus texanus S. raphiodon Cretolamna appendiculata sawfish Ochopristis rays Squatirhina americana Myledaphus bipartitus Ptychotrygon agujaensis bowfin Melvius thomasi gars from the Aguja: Lepisosteus Atractosteus

Reference

 * Hunt, ReBecca K., Vincent L. Santucci and Jason Kenworthy. 2006. "A preliminary inventory of fossil fish from National Park Service units." in S.G. Lucas, J.A. Spielmann, P.M. Hester, J.P. Kenworthy, and V.L. Santucci (ed.s), Fossils from Federal Lands. New Mexico Museum of Natural History and Science Bulletin 34, pp. 63-69.