Marjum biota, House Range: Drumian, Utah

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Megasiphon thylakos n. gen., n. sp. Nanglu et al. 2023
Nanglu et al. 2023
Edrioasteroidea - Edrioasterida - Totiglobidae
? Totiglobus lloydi Sprinkle 1985
Eocrinoidea
Marjumicystis mettae Ubaghs and Robison 1988
Eocrinoidea - Gogiida - Eocrinidae
Gogia spiralis Robison 1965
Soluta - Syringocrinida
Castericystis vali Ubaghs and Robison 1988
Pterobranchia
Mastograptus sp. LoDuca and Kramer 2014
Eldoniidae
Eldonia ludwigi Walcott 1911
Polychaeta
Polychaeta indet. Grube 1850
Hyolithida - Hyolithidae
? Hyolithes spp. d'Eichwald 1840
Lingulata - Acrotretida - Acrotretidae
Prototreta attenuata
Linnarssonia bellatula
Linnarssonia ophirensis (Walcott 1902)
Canthylotreta marjumensis
Lingulata - Lingulida - Obolidae
Lingulella spp. Salter 1866
Lingulata - Lingulida - Acrothelidae
Acrothele subsidua White 1874
Paterinata - Paterinida - Paterinidae
Micromitra modesta
Kutorginata - Kutorginida - Nisusiidae
Nisusia sulcata Rowell and Caruso 1985
Stenothecoida - Cambridioida - Cambridiidae
Stenothecoides elongata (Walcott 1884)
Helcionelloida - Helcionellida - Rugaeconidae
Latouchella arguta (Resser 1939)
unclassified
Arthropoda informal gen. et sp. nov. A
Meristosoma sp. Robison and Wiley 1995
? Semaeostomae indet.
Tuzoida - Tuzoiidae
Tuzoia guntheri Robison and Richards 1981
Radiodonta - Hurdiidae
Buccaspinea cooperi Pates et al. 2021
Pahvantia hastata Robison and Richards 1981
Peytoia nathorsti Walcott 1911
Radiodonta
Caryosyntrips sp. Daley and Budd 2010
Caryosyntrips ? camurus Pates and Daley 2017
Hymenocarina - Perspicarididae
? Perspicaris ellipsopelta
unclassified
Branchiocaris ? pretiosa (Resser 1929)
Megacheira - Yohoiida - Yohoiidae
Dytikosicula desmatae Conway Morris et al. 2015
Megacheira - Leanchoiliida - Leanchoiliidae
? Leanchoilia cf. protogonia Simonetta 1970
unclassified
Dicranocaris guntherorum Briggs et al. 2008
Nettapezoura basilika Briggs et al. 2008
Agnostida - Peronopsidae
Itagnostus interstrictus (White 1874)
Peronopsis segmenta Robison 1964
Agnostida - Ammagnostidae
Ammagnostus lochmanae
Ammagnostus laiwuensis (Lorenz 1906)
Agnostida - Diplagnostidae
Iniospheniscus talis
Linguagnostus perplexus
Peronopsis acadica (Hartt 1868)
Agnostida - Spinagnostidae
Cotalagnostus informal new species
Hypagnostus parvifrons (Linnarsson 1869)
Tomagnostella exsculpta (Angelin 1851)
Doryagnostus incertus (Brögger 1878)
Agnostida - Ptychagnostidae
Pseudophalacroma rigbyi
Lejopyge hybridus
Ptychagnostus atavus (Tullberg 1880)
Ptychagnostus akanthodes Robison 1964
Ptychagnostus cuyanus (Rusconi 1948)
Ptychagnostus punctuosus (Angelin 1851)
Ptychagnostus affinis (Brøgger 1878)
Pseudophalacroma lundgreni (Tullberg 1880)
Ptychagnostus occultatus Öpik 1979
Ptychagnostus leptus Qian 1983
Agnostida - Clavagnostidae
Utagnostus songae Peng and Robison 2000
Nektaspidida - Naraoiidae
Naraoia compacta Walcott 1912
Trilobita - Burlingiidae
Burlingia halgedahlae Robison and Babcock 2011
Trilobita - Ptychopariida - Marjumiidae
Modocia typicalis
Modocia laevinucha
Modocia nuchaspina
Modocia typicalis
Trilobita - Ptychopariida - Alokistocaridae
Utaspis marjumensis
Elrathia marjumi
Altiocculus harrisi (Robison 1971)
Trilobita - Ptychopariida - Lonchocephalidae
Trymataspis depressa Robinson 1964
Trilobita - Ptychopariida - Menomoniidae
Bolaspidella jarrardi Robison and Babcock 2011
Bolaspidella contracta Robison 1964
Trilobita - Asaphida - Asaphidae
Asaphiscus wheeleri Meek 1873
Trilobita - Corynexochida - Dolichometopidae
Hemirhodon amplipyge
Athabaskiella proba
Bathyuriscus elegans
Bathyuriscus fimbriatus Robison 1964
Bathyuriscidella sp. Rasetti 1948
Trilobita - Corynexochida - Dorypygidae
Olenoides pugio
Trilobita - Corynexochida - Zacanthoididae
Zacanthoides sp. Walcott 1888
Ottoidae
Ottoia prolifica Walcott 1911
Palaeoscolecida - Cricocosmida - Palaeoscolecidae
Scathascolex minor Smith 2015
Scathascolex ? minor Smith 2015
Selkirkiimorpha - Selkirkiidae
Selkirkia willoughbyi Conway Morris and Robison 1986
unclassified
Cambrorhytium major (Walcott 1908)
Hydrozoa - Narcomedusae
? Narcomedusae indet. Haeckel 1879
Hydrozoa - Hydroida
Sphenoecium wheelerensis
Scyphozoa - Coronatae
? Coronatae indet. Dong et al. 2013
Cubozoa
Cubozoa indet.
"Cubuzoan jellyfish"
Hexactinellida - Reticulosa - Protospongiidae
Diagoniella sp. Rauff 1894
Diagoniella magna Rigby et al. 2010
Diagoniella cyathiformis (Dawson and Hinde 1889)
Diagoniella hindei Walcott 1920
Testiispongia venula
? Protospongia elongata
Protospongia hicksi Hinde 1887
Hexactinellida - Reticulosa - Hintzespongiidae
Hintzespongia bilamina Rigby and Gutschick 1976
Ratcliffespongia perforata
Hexactinellida - Reticulosa
Valospongia gigantus
Demospongiae - Protomonaxonida - Leptomitidae
Leptomitella metta (Rigby 1983)
Demospongiae - Protomonaxonida - Choiidae
Choia utahensis Walcott 1920
Choia carteri Walcott 1920
Choia hindei (Dawson 1896)
Demospongiae - Protomonaxonida - Hazeliidae
Hazelia palmata Walcott 1920
Demospongiae - Protomonaxonida - Hamptoniidae
Hamptonia bowerbankia
Coeloscleritophora - Chancelloriida - Chancelloriidae
Chancelloria sp. Walcott 1920
Hyolithelminthida - Hyolithellidae
Hyolithellus sp. Billings 1872
unclassified
Marpolia spissa Walcott 1919
Morania fragmenta Walcott 1919
Sinocylindra sp. Chen and Erdtmann 1991
Fuxianospira girata Chen and Zhao 1997
Bryopsidophyceae - Caulerpales - Caulerpaceae
Margaretia dorus Walcott 1931
"Oesia disjuncta/Margaretia dorus"
see common names

Geography
Country:United States State/province:Utah County:Millard
Coordinates: 39.3° North, 113.3° West (view map)
Paleocoordinates:4.1° South, 90.8° West
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Cambrian Epoch: Miaolingian
Stage: Drumian 10 m.y. bin: Cambrian 4
Key time interval: Drumian
Age range of interval: 504.5 - 500.5 m.y. ago
Stratigraphy
Formation:Marjum
Stratigraphic resolution:group of beds
Stratigraphy comments: 30-200 m above base of Marjum Formation; Drumian stage
Lithology and environment
Primary lithology: mudstone
Secondary lithology: "limestone"
Includes fossils?Y
Lithology description: " thin-bedded limestone inter-bedded with shale/lime mudstone"
Environment:offshore
Geology comments: distal shelf to slope biofacies
Taphonomy
Modes of preservation:adpression,soft parts
Lagerst�tten type:conservation
Size of fossils:macrofossils
Articulated whole bodies:some
Collection methods and comments
Reason for describing collection:taxonomic analysis
Taxonomic list comments:Biota updated from list in Robison, Babcock & Gunther (2015)
Metadata
Database number:230679
Authorizer:P. Novack-Gottshall Enterer:P. Novack-Gottshall
Modifier:P. Novack-Gottshall Research group:marine invertebrate
Collections that are a subset of this one:230670, 230677, 230678
Created:2023-07-11 16:10:26 Last modified:2024-06-28 12:20:01
Access level:the public Released:2023-07-11 16:10:26
Creative Commons license:CC BY
Reference information

Primary reference:
85251. S. Pates, R. Lerosey-Aubril, A.C. Daley, C. Kier, E. Bonino and J. Ortega-Hernandez. 2021. The diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian). PeerJ 9:1-43 [P. Novack-Gottshall/P. Novack-Gottshall]

Secondary references:

85261 K. Nanglu, R. Lerosey-Aubril, J.C. Weaver and J. Ortega-Hernandez. 2023. A mid-Cambrian tunicate and the deep origin of the ascidiacean body plan. Nature Communications 14:3832 [P. Novack-Gottshall/P. Novack-Gottshall]