Hosselkus Limestone

Hosselkus Limestone
Type	Geological formation

The Hosselkus Limestone is an Upper Triassic fossiliferous marine micritic limestone formation that outcrops in Plumas and Shasta Counties, California.^[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.

Vertebrates of the Hosselkus Limestone
Genus	Species	Location	Member	Abundance	Notes	Images
Merriamia[2]	M. zitteli[2]					Thalattosaurus and Nectosaurus Shastasaurus
Nectosaurus[3]	N. halius[4]
Shastasaurus[5]	S. alexandrae[6]				Now referred to S. pacificus.[7]
	S. altispinus[6]				Now referred to S. pacificus.[7]
	S. careyi[7]				Remains formerly attributed to S. careyi are now thought to be from an indeterminate species of Shonisaurus.[8]
	S. osmonti[6]				Now referred to S. pacificus.[7]
	S. pacificus[6]
Shonisaurus[8]	Indeterminate.[8]
Thalattosaurus[2]	T. alexandrae[2]
	T. perrini[2]
	T. shastensis[2]
Toretocnemus[9]	T. californicus[6]
	T. perrini[9]

Footnotes

1. Noble, Paula; Paul Renne (March 1990). "Paleoenvironmental and biostratigraphic significance of siliceous microfossils of the Permo-Triassic Redding Section, Eastern Klamath Mountains, California". Marine Micropaleontology 15 (3-4).
2. "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 267
3. "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) pp. 265-267
4. "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) pp. 266-267
5. "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) pp. 267-270
6. "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 270
7. "4: The Marine Reptiles; Triassic Ichthyosaurs; Shastasauria," in Hilton (2003) p. 88.
8. "4: The Marine Reptiles; Triassic Ichthyosaurs; Shastasauria," in Hilton (2003) p. 88. Misspelled as "Shonosaurus" in "Appendix: Summary of the Mesozoic Reptilian Fossils of California," Hilton (2003) p. 270
9. "Appendix: Summary of the Mesozoic Reptilian Fossils of California," in Hilton (2003) p. 270-271

References

• Hilton, Richard P. 2003. Dinosaurs and Other Mesozoic Reptiles of California. Berkeley: University of California Press. 318 pp.