Telegraph Creek Formation

Telegraph Creek Formation
Telegraph Creek Formation
Stratigraphic range: Santonian
Type	Geological formation
Location
Region	Montana
Country	United States

Last updated June 25, 2025

The Telegraph Creek Formation is a Mesozoic geologic formation in Montana, United States. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.^[1]

Fossil content

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.

Invertebrates

Invertebrates reported from the Telegraph Creek Formation
Genus	Species	Locality	Stratigraphic member	Material	Notes	Images
Sphenoceramus ^[2]	S.cardissoides S.lundbreckensis^[3]
Desmoscaphites ^[4]	D.bassleri

Vertebrates

Vertebrates reported from the Telegraph Creek Formation
Genus	Species	Locality	Stratigraphic member	Material	Notes	Images
Tylosaurus	T.proriger^[5]			Skull
Hadrosauridae ^[1]	indet

Footnotes

1 2 Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
↑ Walaszczyk, Cobban, I, WA (2006). "Palaeontology and biostratigraphy of the Middle-Upper Coniacian and Santonian inoceramids of the US Western Interior". Acta Geologica Polonica. 56 (3).{{cite journal}}: CS1 maint: multiple names: authors list (link)
↑ "USGS 9625 (Cretaceous of the United States)". PBDB.org.
↑ Landman, Neil H.; Cobban, William A. (2007-01-01). "Redescription of the Late Cretaceous (late Santonian) ammonite Desmoscaphites bassleri Reeside, 1927, from the Western Interior of North America". Rocky Mountain Geology. 42 (2): 67–94. doi:10.2113/gsrocky.42.2.67. ISSN 1555-7332.
↑ Russell, D. A. (1964). "The Skull of American Mosasaurs". Columbia University.

References

Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.

This article about a specific stratigraphic formation in Montana is a stub. You can help Wikipedia by expanding it.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

[dinosaurdistribution-1] 1 2 Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.

[2] Walaszczyk, Cobban, I, WA (2006). "Palaeontology and biostratigraphy of the Middle-Upper Coniacian and Santonian inoceramids of the US Western Interior". Acta Geologica Polonica. 56 (3).{{cite journal}}: CS1 maint: multiple names: authors list (link)

[3] "USGS 9625 (Cretaceous of the United States)". PBDB.org.

[4] Landman, Neil H.; Cobban, William A. (2007-01-01). "Redescription of the Late Cretaceous (late Santonian) ammonite Desmoscaphites bassleri Reeside, 1927, from the Western Interior of North America". Rocky Mountain Geology. 42 (2): 67–94. doi:10.2113/gsrocky.42.2.67. ISSN 1555-7332.

[5] Russell, D. A. (1964). "The Skull of American Mosasaurs". Columbia University.

[1]

[2]

[3]

[4]

[5]