Moreno Formation
Stratigraphic range:
TypeGeological formation
Unit ofChico Group
UnderliesUnconformity with the Martinez Formation and Tejon Formation
OverliesPanoche Formation
Thickness1,600–2,000 ft (487.68–609.60 m)
Lithology
PrimaryShale
OtherSandstone
Location
RegionSan Joaquin Valley  California
Country United States

The Moreno Formation is a Mesozoic geologic formation located in San Joaquin Valley (California).
Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[1]

Paleofauna

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
 Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Ray-finned fish

Ray-finned fishes reported from the Moreno Formation
Genus Species Location Member Material Notes Images

Bonnerichthys[2]

B. gladius

A large, filter-feeding pachycormid.
Bonnerichthys

Saurodon[3]

S. sp.

An ichthyodectid.
Saurodon

Dinosaurs

Dinosaurs reported from the Moreno Formation
Genus Species Location Member Material Notes Images

Augustynolophus[4]

A. morrisi[4]

A saurolophine.[4]
"Augustynolophus"

Saurolophus[4]

S. morrisi[4]

Reclassified as Augustynolophus morrisi.[4]

Mosasaurs

Mosasaurs reported from the Moreno Formation
Genus Species Location Member Material Notes Images

Kolposaurus[5]

K. bennisoni[5]

The name Kolposaurus was preoccupied and its two constituent species moved to the new genus Plotosaurus.[5]

K. tuckeri[5]

Plesiotylosaurus[6]

P. crassidens[6]
Plesiotylosaurus crassidens

Plotosaurus[5]

P. bennisoni[5]
Plotosaurus bennisoni
P. tuckeri[5] A junior synonym of P. bennisoni.

Prognathodon[7]

P. cf. waiparaensis

cf. Mosasaurus[7]

cf. M. sp.

Halisaurus[7]

H. sp.

Plesiosaurs

Plesiosaurs reported from the Moreno Formation
Genus Species Location Member Material Notes Images

Aphrosaurus[8]

A. furlongi[8]
Aphrosaurus

Fresnosaurus[9]

F. drescheri[9]
Fresnosaurus

Hydrotherosaurus[8]

H. alexandrae[8]
Hydrotherosaurus

Morenosaurus[9]

M. stocki[9]
Morenosaurus

Turtles

Testudines reported from the Moreno Formation
Genus Species Location Member Material Notes Images

Adocus

J. Howard Hutchison later referred the specimen originally identified as Adocus by to the genus Basilemys.[10]

Basilemys

Osteopygis[9]

See also

Footnotes

  1. ↑ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
  2. ↑ Friedman, Matt; Shimada, Kenshu; Everhart, Michael J.; Irwin, Kelly J.; Grandstaff, Barbara S.; Stewart, J. D. (8 January 2013). "Geographic and stratigraphic distribution of the Late Cretaceous suspension-feeding bony fish Bonnerichthys gladius (Teleostei, Pachycormiformes)". Journal of Vertebrate Paleontology. 33 (1): 35–47. doi:10.1080/02724634.2012.713059. S2CID 128958842.
  3. ↑ Friedman, Matt; Shimada, Kenshu; Everhart, Michael J.; Irwin, Kelly J.; Grandstaff, Barbara S.; Stewart, J. D. (8 January 2013). "Geographic and stratigraphic distribution of the Late Cretaceous suspension-feeding bony fish Bonnerichthys gladius (Teleostei, Pachycormiformes)". Journal of Vertebrate Paleontology. 33 (1): 35–47. doi:10.1080/02724634.2012.713059. S2CID 128958842.
  4. 1 2 3 4 5 6 Prieto-Márquez, Albert; Wagner, Jonathan R.; Bell, Phil R.; Chiappe, Luis M. (2014). "The late-surviving 'duck-billed' dinosaur Augustynolophus from the upper Maastrichtian of western North America and crest evolution in Saurolophini". Geological Magazine. 152 (2): 225–241. doi:10.1017/S0016756814000284. S2CID 131049979.
  5. 1 2 3 4 5 6 7 "4: The Marine Reptiles; Mosasaurs," in Hilton (2003) p. 107-110
  6. 1 2 "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 273
  7. 1 2 3 Lindgren, Johan; Schulp, Anne (15 September 2010). "New material of Prognathodon (Squamata: Mosasauridae), and the mosasaur assemblage of the Maastrichtian of California, U.S.A." Journal of Vertebrate Paleontology. 30 (5): 1632–1636. doi:10.1080/02724634.2010.501444. S2CID 131124198.
  8. 1 2 3 4 "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 276
  9. 1 2 3 4 5 "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 277
  10. ↑ "4: The Marine Reptiles; Turtles," in Hilton (2003) p. 114

References

  • Hilton, Richard P. 2003. Dinosaurs and Other Mesozoic Reptiles of California. Berkeley: University of California Press. 318 pp.
  • Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.
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