Species: popularis CAMP, 1976
Etymology:
Holotype: UNLVNH FZVE-1
Locality: Quarry 5, west Union Canyon, southwest of Ichthyosaur State Park exhibition quarry, Nye County, Nevada.
Horizon: 170 m above base of shaly limestone member of Luning Formation.
Biostratigraphy: Upper part of the Klamathites macrolobatus zone.
Age: Upper Carnian Stage, Middle Late Triassic Epoch, Late Triassic.
Material: Skeleton lacking distal end of tail, incomplete skull.
Paratype: UNLV MNH FZVE-2: Proximal half of right front paddle humerus, parts of shoulder girdle and skull.
UNLV MNH FZVE-3: Incomplete skeleton including 1 side of skull, pelvis and part of rear paddle and tail.
There are more than 30 individuals.
Referred material:
= Shoniosaurus aff. S. popularis DALLA VECCHIA & AVANZINI, 2002
Locality: Rifugio Dibona, Tofane, Dolomites, Belluno Province, Veneto Region, Northeastern Italy.
Horizon: Durrenstein Formation.
Biostratigraphy:
Age: Earliest Tuvalian, base of the Late Carnian Stage, Lower Late Triassic Stage, Early Late Triassic.
Material:
MTSN 4896: Centra.
KELLEY, IRMIS, dePOLO, NOBLE, MONTAGUE-JUDD, LITTLE, BLUNDELL, RASMUSSEN, PERCIVAL, MATHER & PYENSEN, 2022
Locality: Quarry 2, west Union Canyon, southwest of Ichthyosaur State Park exhibition quarry, Nye County, Nevada.
Horizon: Luning Formation.
Biostratigraphy: Upper part of the Klamathites macrolobatus zone.
Age: Upper Carnian Stage, Middle Late Triassic Epoch, Late Triassic.
Material:
In situ: 7 fragmentary skeletons.
McMENAMIN, HUSSEY, & ORR, 2016
Locality: Near Ichthyosaur State Park exhibition quarry, Nye County, Nevada.
Horizon: Luning Formation.
Biostratigraphy: Upper part of the Klamathites macrolobatus zone.
Age: Upper Carnian Stage, Middle Late Triassic Epoch, Late Triassic.
Material:
Number: Not given: Shonisaurus coprolite (Heteropolacopros ichnosp), with remains of a nautiloid ?(cf. Cenoceras).
= Shonisaurus silberlingi CAMP, 1976
Etymology:Holotype: UNLV NHM PZVE-7
Locality: Quarry X, 150 m northwest of Quarry 4, 800 m due west of the upper (or "Cirac") springs, at an elevations of approximately 2262 m, on top of south-sloping ridge, north side of West Union Canyon, Nye, County, Nevada.
Horizon: Shaly limestone member of Luning Formation.
Biostratigraphy: Lower part of Klamathites schucherti zone.
Age: Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material: Left humerus, left radius, Ulnare, large neural spine.
= Shonisaurus mulleri CAMP, 1976
Etymology:Holotype: UNLV NHM FZVE-5
Locality: Quarry 4, (the "May Locality") 1200 m northeast of Quarry 1 on northwest side West Union Canyon, about 60 m above the floor of the canyon, Nye County, Nevada.
Horizon: Luning Formation.
Biostratigraphy: Lower part of Klamathites macrolobatus zone.
Age: Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material: Associated pubis, ischia, ilium, femur tibia, and other paddle elements with ribs and fragments.
Referred material:
Locality: Dunlap Canyon in the Pilot Mountains east of Mina, Mineral County, Nevada.
Horizon:
Biostratigraphy:
Age: Late Triassic.
Material:
UNLV NHM FZVE-6: Humerus.
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