Ammorhynchus

Ammorhynchus is an extinct genus of hyperodapedontid rhynchosaur from Middle Triassic (Anisian stage) deposits of Navajo County, Arizona.[1] It is known from the holotype MSM 02-153/P4585, a nearly complete left maxilla and from three paratypes (MSM 00-99/P4409, MSM 00-103/P4586 and MSM 02-145/P4544) from the same locality. It was found in the Holbrook Member, upper Moenkopi Formation of northern Arizona. It was first named by S. J. Nesbitt and R. L. Whatley in 2004 and the type species is Ammorhynchus navajoi.[2]

Ammorhynchus
Temporal range: Anisian
~247.2–242.0 Ma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: †Rhynchosauria
Family: †Rhynchosauridae
Subfamily: †Stenaulorhynchinae
Genus: †Ammorhynchus
Nesbitt & Whatley, 2004
Species
  • †A. navajoi Nesbitt & Whatley, 2004 (type)

References
  1. Ammorhynchus at Fossilworks.org
  2. S. J. Nesbitt & R. L. Whatley (2004). "The first discovery of a rhynchosaur from the upper Moenkopi Formation (Middle Triassic) of northern Arizona". PaleoBios. 24 (3): 1–10.


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