Chondrichthyans from the lower Mississippian Redwall Limestone of the Grand Canyon National Park, Arizona.
Hodnett J, Elliott D, Santucci VL. 2020. Chondrichthyans from the lower Mississippian Redwall Limestone of the Grand Canyon National Park, Arizona.. Pages 141-144. In Fossil Record #7: New Mexico Museum of Nature and Science Bulletin 82. New Mexico Museum of Nature and Science. Albuquerque, NM. 82
Two species of holocephalan chondrichthyans are identified and described from the Mooney Falls Member of the early Late Mississippian Redwall Limestone at the Grand Canyon National Park. A specimen previously referred to “Helodus sp.” from the South Kaibab Trail is re-diagnosed as Psephodus sp. A new specimen of Helodus sp. is identified from the Surprise Canyon region of the Grand Canyon. Based on the current fossil and stratigraphic data, these two holocephalans are considered to be of Visean (early Late Mississippian) age.
- Type
- Book Chapter
- Authors
- Hodnett, John-Paul; Elliott, David; Santucci, Vincent
- Units
- GRCA
- Keywords
- fossils, holocephalan, Mississippian, paleontology
- Subjects
- Ecological Framework: Geology and Soils | Paleontology | Paleontology