Notch Peak Sill intruding into the layers of white marble and grey argillite of the Marjum Formation
Type
Geological formation
Overlies
Wheeler Shale
Thickness
Up to 430 meters[1]
Lithology
Primary
limestone
Other
shale, metasedimentary rocks
Location
Region
Utah
Country
USA
Extent
House Range
Type section
Named for
Marjum Pass[2]
Named by
Charles D. Walcott
Year defined
1908[2]
The Marjum Formation is a Cambrian geological formation that overlies the Wheeler Shale in the House Range, Utah.[1][3] It is named after its type locality, Marjum Pass, and was defined in 1908.[2] The formation is known for its occasional preservation of soft-bodied tissue, and is slightly younger than the Burgess Shale,[4] falling in the Ptychagnostus praecurrens trilobite zone.[5]
^ abFoster, John; Gaines, Robert (October 2016). "Taphonomy and paleoecology of the "middle" Cambrian (Series 3) formations in Utah's West Desert: Recent finds and new data". Utah Geological Association Publication. 45: 291–336.
^ abcWalcott, Charles D. (1910). "Nomenclature of some cambrian cordilleran formations". Smithsonian Miscellaneous Collections. 53 (1): 1–12. hdl:10088/23377.
^"Trilobites of The Marjum Formation".
^Robison, R. A. (1964). "Upper Middle Cambrian Stratigraphy of Western Utah". Geological Society of America Bulletin. 75 (10): 995–1010. Bibcode:1964GSAB...75..995R. doi:10.1130/0016-7606(1964)75[995:UMCSOW]2.0.CO;2. ISSN 0016-7606.
^Conway Morris, S.; Robison, R. A. (1986). "Middle Cambrian priapulids and other soft-bodied fossils from Utah and Spain". University of Kansas Paleontological Contributions. 117: 1–22. hdl:1808/3696.
The MarjumFormation is a Cambrian geological formation that overlies the Wheeler Shale in the House Range, Utah. It is named after its type locality...
represents a Konservat-Lagerstätten. Together with the MarjumFormation and lower Weeks Formation, the Wheeler Shale forms 490 to 610 m (1,610 to 2,000 ft)...
Conway Morris et al. reported another species, Y. utahana, from the MarjumFormation, Utah. Fossil specimens of Yohoia range in size from 7 to 23 mm, they...
Ortega-Hernández, J. (2024). "Benthic pterobranchs from the Cambrian (Drumian) Marjum Konservat-Lagerstätte of Utah". Papers in Palaeontology. 10 (3). e1555....
elongate animal from what is now the Middle Cambrian Wheeler Shale and Marjum lagerstätte of Utah. It has been classified with the vetulicolians. The...
Canada and the Wheeler and MarjumFormations of the United States, and Peytoia infercambriensis from the Zawiszyn Formation of Poland. Another species...
Buccaspinea is an extinct genus of Cambrian peytoiid radiodont from the MarjumFormation, known from frontal appendages and a nearly complete albeit headless...
recovered from the Burgess Shale Formation, Canada, Wheeler Shale and MarjumFormation, United States, and Valdemiedes Formation, Spain. The latter contain...
Ortega-Hernández, Javier (2021-01-19). "The diverse radiodont fauna from the MarjumFormation of Utah, USA (Cambrian: Drumian)". PeerJ. 9: e10509. doi:10.7717/peerj...
of the problematic vetulicolian Skeemella clavula in the Cambrian MarjumFormation of Utah, USA". Carnets de Géologie. 2020: 215–221. doi:10.4267/2042/70836...
Ortega-Hernández, Javier (19 January 2021). "The diverse radiodont fauna from the MarjumFormation of Utah, USA (Cambrian: Drumian)". Palaeontology and Evolutionary Science...
palaeoscolecid, the first known from the MarjumFormation in Utah; some specimens from the Weeks Formation could be tentatively assigned to this genus...
Columbia, Canada but also possibly the Wheeler Shale, MarjumFormation, Pioche Shale and Bloomington Formation. Two named species are known from the Burgess Shale...
Ortega-Hernández, Javier (19 January 2021). "The diverse radiodont fauna from the MarjumFormation of Utah, USA (Cambrian: Drumian)". Palaeontology and Evolutionary Science...
E, Ortega-Hernández J. 2021. The diverse radiodont fauna from the MarjumFormation of Utah, USA (Cambrian: Drumian) PeerJ 9:e10509 https://doi.org/10...
free-living medusa fossils from the Cambrian, such as those from the MarjumFormation of Utah and Yunannoascus from the Chengjiang biota of China are considered...
Ortega-Hernández, Javier (2021-01-19). "The diverse radiodont fauna from the MarjumFormation of Utah, USA (Cambrian: Drumian)". PeerJ. 9: e10509. doi:10.7717/peerj...
(2021). "First palaeoscolecid from the Cambrian (Drumian, Miaolingian) MarjumFormation of western Utah, USA". Acta Palaeontologica Polonica. 66 (3): 663–678...
(2022). "Revision of the middle Cambrian (Drumian) sponges from the MarjumFormation of Utah, USA". Conference: 6th International Palaeontological Congress...
Ortega-Hernández, J. (2021). "The diverse radiodont fauna from the MarjumFormation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 (1): e10509. doi:10.7717/peerj...
cyclic facies, and lagerstätten in the Middle Cambrian Wheeler and MarjumFormations, Great Basin, Utah". Palaeogeography, Palaeoclimatology, Palaeoecology...
E, Ortega-Hernández J. 2021. The diverse radiodont fauna from the MarjumFormation of Utah, USA (Cambrian: Drumian) PeerJ 9:e10509 https://doi.org/10...
Middle Cambrian) Wheeler Shale and MarjumFormation, then the Cedaria zone (lowermost Upper Cambrian) Weeks Formation. Van Cott, J. W., 1990, Utah Place...
of spicular Cambrian sea sponges known from the Burgess Shale, the MarjumFormation of Utah, and possibly Chengjiang. It was described by Charles Walcott...
include the Walcott Quarry, Marble Canyon, Stephen Formation, Stanley Glacier and the Cathedral Formation. Crown-group arthropods (euarthropods such as trilobites)...
Cambrian PreꞒ Ꞓ O S D C P T J K Pg N Olenoides superbus from the Upper MarjumFormation 3D reconstruction of Olenoides serratus Scientific classification Domain:...
single species, Pahvantia hastata, described from Wheeler Shale and MarjumFormation in Utah. Although it was once considered as filter feeder using large...
Global Information
Utah
USA