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DRUMIAN

  • Drumian
  • Second age of the Miaolingian epoch

    39°30′42″N 112°59′29″W / 39.5117°N 112.9915°W / 39.5117; -112.9915 The Drumian is a stage of the Miaolingian Series of the Cambrian. It succeeds the Wuliuan

    Drumian

    Drumian

    Drumian

  • Cambrian
  • First geological period of the Paleozoic Era

    is divided into three stages: the Wuliuan c. 506.5 Ma to 504.5 Ma; the Drumian c. 504.5 Ma to c. 500.5 Ma; and the Guzhangian c. 500.5 Ma to c. 497 Ma

    Cambrian

    Cambrian

    Cambrian

  • Arthropod
  • Phylum of invertebrates with jointed exoskeletons

    diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 e10509. Bibcode:2021PeerJ...910509P. doi:10.7717/peerj.10509

    Arthropod

    Arthropod

    Arthropod

  • Miaolingian
  • Third epoch of the Cambrian period

    years ago and is divided in ascending order into 3 stages: the Wuliuan, Drumian, and Guzhangian. The Miaolingian is preceded by the unnamed Cambrian Series

    Miaolingian

    Miaolingian

    Miaolingian

  • Wuliuan
  • Fifth stage of Cambrian and first stage of the Miaolingian

    trilobite species Oryctocephalus indicus; it ends with the beginning of the Drumian Stage, marked by the first appearance of the trilobite Ptychagnostus atavus

    Wuliuan

    Wuliuan

  • Radiodonta
  • Extinct order of basal arthropods

    Reply to Comment on "Aysheaia prolata from the Utah Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan Stanleycaris" with

    Radiodonta

    Radiodonta

    Radiodonta

  • Guzhangian
  • Seventh stage of the Cambrian and third stage of the Miaolingian

    uppermost stage of the Miaolingian Series of the Cambrian. It follows the Drumian Stage and precedes the Paibian Stage of the Furongian Series. The base

    Guzhangian

    Guzhangian

  • Utahnax
  • Extinct genus of gilled lobopodian

    Utahnax is a genus of kerygmachelid lobopodian from the Drumian of Utah, containing one species, Utahnax vannieri, either from the Marjum or Wheeler formation

    Utahnax

    Utahnax

    Utahnax

  • Cambrian explosion
  • Period of major evolutionary diversification of animal life

    M i d d l e L o w e r Fortunian "Stage 2" "Stage 3" "Stage 4" Wuliuan Drumian Guzhangian Paibian Jiangshanian "Stage 10"     Ediacaran biota * * * *

    Cambrian explosion

    Cambrian_explosion

  • Geologic time scale
  • System that relates geologic strata to time

    ~491 Jiangshanian ~494.2 * Paibian ~497 * Miaolingian Guzhangian ~500.5 * Drumian ~504.5 * Wuliuan ~506.5 Series 2 Stage 4 ~514.5 Stage 3 ~521 Terreneuvian

    Geologic time scale

    Geologic time scale

    Geologic_time_scale

  • Eldonia
  • Extinct genus of soft-bodied animals

    Eldonia ludwigi (Walcott, 1911): Known from the Middle Cambrian (Wuliuan to Drumian) Burgess Shale, Spence Shale, and Marjum Formation, all along the Cambrian

    Eldonia

    Eldonia

    Eldonia

  • Caryosyntrips
  • Extinct genus of arthropod

    diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 e10509. doi:10.7717/peerj.10509. ISSN 2167-8359. PMC 7821760

    Caryosyntrips

    Caryosyntrips

    Caryosyntrips

  • Zhenghecaris
  • Genus of enigmatic Cambrian arthropod

    diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 e10509. doi:10.7717/peerj.10509. PMC 7821760. PMID 33552709

    Zhenghecaris

    Zhenghecaris

    Zhenghecaris

  • Lobopodia
  • Group of extinct worm-like animals with legs

    ISSN 2056-2802. S2CID 135026011. "Aysheaia prolata from the Utah Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan Stanleycaris - Acta

    Lobopodia

    Lobopodia

    Lobopodia

  • Dicranocaris
  • Extinct genus of arthropods

    lived in the Wheeler Shale formation of what is now modern day Utah during Drumian of the Cambrian period. The type and only species is Dicranocaris guntherorum

    Dicranocaris

    Dicranocaris

    Dicranocaris

  • Tommotiid
  • Extinct clade of lophophorates

    "Discovery of the youngest known tommotiid from the middle Cambrian (Drumian) Nelson Limestone of Antarctica". Diva. Guo, Jin; Parry, Luke A.; Vinther

    Tommotiid

    Tommotiid

    Tommotiid

  • Manuels River Formation
  • Geologic formation in Newfoundland and Labrador, Canada

    Manuels River Formation is a Middle Cambrian (Drumian) geological formation cropping out in the Random Island area of Newfoundland and elsewhere?. Its

    Manuels River Formation

    Manuels_River_Formation

  • Soluta (echinoderm)
  • Extinct clade of echinoderms

    The earliest solutes, Coleicarpus and Castericystis, lived during the Drumian age of the Cambrian. Solutes were the last of the four carpoid classes

    Soluta (echinoderm)

    Soluta (echinoderm)

    Soluta_(echinoderm)

  • Pahvantia
  • Extinct genus of radiodonts

    diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 e10509. doi:10.7717/peerj.10509. PMC 7821760. PMID 33552709

    Pahvantia

    Pahvantia

    Pahvantia

  • Wheeler Shale
  • Geologic formation in Utah notable for trilobite fossils

    Zhang, Xi‐Guang (ed.). "New exceptionally preserved panarthropods from the Drumian Wheeler Konservat‐Lagerstätte of the House Range of Utah". Papers in Palaeontology

    Wheeler Shale

    Wheeler Shale

    Wheeler_Shale

  • Arrakis
  • Fictional desert planet featured in the Dune series

    Julien (2021). "First palaeoscolecid from the Cambrian (Miaolingian, Drumian) Marjum Formation of western Utah". Acta Palaeontologica Polonica. 66:

    Arrakis

    Arrakis

  • Megachelicerax
  • Extinct genus of stem-chelicerates

    until 2026. The fossil originates from the Wheeler Formation (Miaolingian: Drumian) of Utah. The genus name is intended to mean “large chelicera” (chelicera

    Megachelicerax

    Megachelicerax

    Megachelicerax

  • Tuzoia
  • Extinct genus of arthropod

    & Brian R. Pratt (2015). "Soft-bodied biota from the middle Cambrian (Drumian) Rockslide Formation, Mackenzie Mountains, northwestern Canada". Journal

    Tuzoia

    Tuzoia

    Tuzoia

  • Cordaticaris
  • Genus of extinct stem-group arthropods

    is now northern China during the middle Cambrian period (Miaolingian, Drumian). This animal was described in 2020 based on remains found in the Zhangxia

    Cordaticaris

    Cordaticaris

    Cordaticaris

  • Palaeoscolecid
  • Extinct class of worms

    China) Scathascolex minor (Burgess Shale, mid-Cambrian) Arrakiscolex aasei (Drumian, Cambrian; Marjum Formation, Utah) Sahascolex (early Cambrian of Siberia)

    Palaeoscolecid

    Palaeoscolecid

    Palaeoscolecid

  • Buccaspinea
  • Extinct genus of radiodont

    diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 e10509. doi:10.7717/peerj.10509. PMC 7821760. PMID 33552709

    Buccaspinea

    Buccaspinea

    Buccaspinea

  • Skeemella
  • Extinct genus of bilaterians

    backward-pointing spines. In 2020, two more specimens of S. clavula were found in Drumian sediments of 'Middle' Marjum Formation, Ptychagnostus punctuosus Biozone

    Skeemella

    Skeemella

    Skeemella

  • Banffozoa
  • Extinct Cambrian group of marine animals

    Temporal range: about 518–501 Ma PreꞒ Ꞓ O S D C P T J K Pg N Cambrian Stage 3—Drumian "Form A" fossil "Form A" diagram Banffia constricta Skeemella clavula Fossils

    Banffozoa

    Banffozoa

    Banffozoa

  • Sinocylindra
  • Extinct algae genus

    fossils across Southern China have been found, as well as a specimen in the Drumian Marjum formation in Utah, United States. Sinocylindra linearis was described

    Sinocylindra

    Sinocylindra

    Sinocylindra

  • Marjum Formation
  • Geological formation in Utah, United States

    diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 e10509. doi:10.7717/peerj.10509. ISSN 2167-8359. PMC 7821760

    Marjum Formation

    Marjum Formation

    Marjum_Formation

  • Nuucichthys
  • Genus of early vertebrates

    Nuucichthys Temporal range: Cambrian, Drumian PreꞒ Ꞓ O S D C P T J K Pg N Holotype specimen Scientific classification Kingdom: Animalia Phylum: Chordata

    Nuucichthys

    Nuucichthys

    Nuucichthys

  • Branchiocaris
  • Genus of crustaceans

    Zhang, Xi-Guang (ed.). "New exceptionally preserved panarthropods from the Drumian Wheeler Konservat-Lagerstätte of the House Range of Utah". Papers in Palaeontology

    Branchiocaris

    Branchiocaris

    Branchiocaris

  • Messorocaris
  • Extinct genus of arthropods

    magna from the Wheeler Formation of Utah, dating back to the Cambrian (Drumian) period. As of 2020, Messorocaris known only by two specimens. The holotype

    Messorocaris

    Messorocaris

    Messorocaris

  • 2025 in paleontology
  • known record of Cambrian hallucigeniid/luolishaniid lobopodians into the Drumian. Knecht et al. (2025) redescribe Palaeocampa anthrax, interpret it as the

    2025 in paleontology

    2025_in_paleontology

  • 2025 in arthropod paleontology
  • series of Maotunia iddingsi on the basis of fossils from the Cambrian (Drumian) Zhangxia Formation (Shandong, China). Evidence of changes of moulting

    2025 in arthropod paleontology

    2025_in_arthropod_paleontology

  • Emigrant Formation
  • Geologic formation in Nevada, United States

    Frederick A. (May 2018). "Trilobite biostratigraphy of the Cambrian 5 and Drumian stages, Series 3 (Laurentian Delamaran, Topazan, and Marjuman stages, Lincolnian

    Emigrant Formation

    Emigrant_Formation

  • Aysheaia
  • Extinct genus of soft-bodied animals

    Ortega-Hernández, Javier (2017). "Aysheaia prolata from the Utah Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan Stanleycaris". Acta

    Aysheaia

    Aysheaia

    Aysheaia

  • Habeliida
  • Extinct order of Cambrian arthropods

    Zhang, Xi-Guang (ed.). "New exceptionally preserved panarthropods from the Drumian Wheeler Konservat-Lagerstätte of the House Range of Utah". Papers in Palaeontology

    Habeliida

    Habeliida

    Habeliida

  • Terreneuvian
  • First epoch of the Cambrian Period

    F u r o n g. Early O Fortunian "Stage 2" "Stage 3" "Stage 4" Wuliuan Drumian Guzhangian Paibian Jiangshanian "Stage 10" Ediacaran         ← Orsten Fauna

    Terreneuvian

    Terreneuvian

    Terreneuvian

  • Nettapezoura
  • Extinct genus of arthropods

    basilika from the Marjum Formation of Utah, dating back to the Cambrian (Drumian) period. Nettapezoura is known only by one specimen, UU 04083.02, which

    Nettapezoura

    Nettapezoura

    Nettapezoura

  • Cincta
  • Extinct class of marine invertebrates

    Cambrian Stage 5, now known as the Wuliuan. Their diversity peaked during the Drumian. The youngest cinctans are in the genera Undatacinctus and Sucocystis.

    Cincta

    Cincta

    Cincta

  • Vetulicolia
  • Extinct Cambrian group of animals

    Temporal range: about 520–501 Ma PreꞒ Ꞓ O S D C P T J K Pg N Cambrian Stage 3—Drumian (Possible Ediacaran record) Fossil of Vetulicola cuneata Fossil of Banffia

    Vetulicolia

    Vetulicolia

    Vetulicolia

  • Ediacaria
  • Genus of cnidarians

    Ediacaria Temporal range: Tonian–Drumian Pha. Proterozoic Archean Had. Scientific classification Domain: Eukaryota Clade: incertae sedis Genus: †Ediacaria

    Ediacaria

    Ediacaria

    Ediacaria

  • Pseudoarctolepis
  • Extinct genus of bivalved arthropod

    Zhang, Xi-Guang (ed.). "New exceptionally preserved panarthropods from the Drumian Wheeler Konservat-Lagerstätte of the House Range of Utah". Papers in Palaeontology

    Pseudoarctolepis

    Pseudoarctolepis

    Pseudoarctolepis

  • Drum Mountains
  • Mountain range in Utah, United States

    are generally undisturbed. This is the reason why the beginning of the Drumian stage of the geologic time scale was defined here. Fish Springs, Utah,

    Drum Mountains

    Drum_Mountains

  • Thylacocercus
  • Genus of vetulocystids

    vetulocystids from the Lower Cambrian Stage 3 to the Middle Cambrian Stage 5 (Drumian), and the geographic range from South China to Laurentia. The genus name

    Thylacocercus

    Thylacocercus

    Thylacocercus

  • Furongian
  • Fourth and final epoch and series of the Cambrian

    F u r o n g. Early O Fortunian "Stage 2" "Stage 3" "Stage 4" Wuliuan Drumian Guzhangian Paibian Jiangshanian "Stage 10" Ediacaran         ← Orsten Fauna

    Furongian

    Furongian

    Furongian

  • Titanokorys
  • Extinct genus of giant hurdiid radiodont

    diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 (1) e10509. doi:10.7717/peerj.10509. PMC 7821760. PMID 33552709

    Titanokorys

    Titanokorys

    Titanokorys

  • Acontheus
  • Extinct genus of trilobites

    Antarctica, Queensland, China and Wales. Acontheus appears confined to the Drumian and Guzhangian Stages, uppermost two of three Stages subdividing the middle

    Acontheus

    Acontheus

    Acontheus

  • Qiongzhusian
  • M i a o. F u r o n g. Fortunian "Stage 2" "Stage 3" "Stage 4" Wuliuan Drumian Guzhangian Paibian Jiangshanian "Stage 10" Ediacaran         ← Orsten Fauna

    Qiongzhusian

    Qiongzhusian

  • Dinea
  • Genus of trilobites

    straddles the boundary of the Drumian and Guzhangian, whereas all other specimens were deposited earlier in the Drumian. Both of species are known from

    Dinea

    Dinea

  • 2026 in paleontology
  • determine the locations of the Wuliuan–Drumian and Drumian–Guzhangian stage boundaries and the duration of the Drumian Carbon Isotope Excursion on the basis

    2026 in paleontology

    2026_in_paleontology

  • Arrakiscolex
  • Extinct genus of worms

    Julien (2021). "First palaeoscolecid from the Cambrian (Miaolingian, Drumian) Marjum Formation of western Utah". Acta Palaeontologica Polonica. 66.

    Arrakiscolex

    Arrakiscolex

  • Cambrian Series 2
  • Unnamed 2nd series of the Cambrian

    F u r o n g. Early O Fortunian "Stage 2" "Stage 3" "Stage 4" Wuliuan Drumian Guzhangian Paibian Jiangshanian "Stage 10" Ediacaran         ← Orsten Fauna

    Cambrian Series 2

    Cambrian Series 2

    Cambrian_Series_2

  • Ptychagnostus atavus
  • Extinct species of trilobite

    section in the Wheeler Shale of Utah is defined as the beginning of the Drumian Age (around 504.5 million years ago) of the Miaolingian (Middle Cambrian)

    Ptychagnostus atavus

    Ptychagnostus atavus

    Ptychagnostus_atavus

  • Pleuroctenium
  • family Condylopygidae Raymond (1913). The genus occurs in Middle Cambrian (Drumian) strata of Canada (Newfoundland and New Brunswick), the Czech Republic

    Pleuroctenium

    Pleuroctenium

    Pleuroctenium

  • 2026 in arthropod paleontology
  • Liñán, E.; Gámez Vintaned, J. A.; Gozalo, R. (2025). "Cambrian (Stage 4–Drumian) non-trilobite arthropods from the Murero biota (Spain)". Journal of the

    2026 in arthropod paleontology

    2026_in_arthropod_paleontology

  • Felbabkacystis
  • Extinct genus of eocrinoid

    Felbabkacystis is an extinct eocrinoid that is known only from the Drumian Jince Formation of the Czech Republic.. It is significant as a transitional

    Felbabkacystis

    Felbabkacystis

  • Stanleycaris
  • Extinct genus of basal hurdiid radiodonts

    (2018). "Comment on "Aysheaia prolata from the Utah Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan Stanleycaris" by Stephen

    Stanleycaris

    Stanleycaris

    Stanleycaris

  • Cambrian Stage 3
  • Unnamed third stage of the Cambrian

    i a o. F u r o n g. E Fortunian "Stage 2" "Stage 3" "Stage 4" Wuliuan Drumian Guzhangian Paibian Jiangshanian "Stage 10" Tremadocian Ediacaran      

    Cambrian Stage 3

    Cambrian_Stage_3

  • Myllokunmingiidae
  • Extinct family of jawless fishes

    vertebrates or transitional between olfactores and vertebrates are: Nuucichthys (Drumian) Emmonsaspis (Cambrian Stage 4) Zhongxiniscus (Cambrian Stage 3) Metaspriggina

    Myllokunmingiidae

    Myllokunmingiidae

  • Condylopyge
  • Genus of trilobites

    Cambrian Terreneuvian Series in Nuneaton, central England into at least Drumian strata (middle stage of the Miaolingian Series) at various locations elsewhere

    Condylopyge

    Condylopyge

    Condylopyge

  • Rockslide Formation
  • formation in Northwest Territories. It preserves fossils dating back to the Drumian (Plagiura-Pogiella to Bolaspidella Zone). It was deposited in deep water

    Rockslide Formation

    Rockslide_Formation

  • List of organisms named after works of fiction
  • Julien (2021). "First palaeoscolecid from the Cambrian (Miaolingian, Drumian) Marjum Formation of western Utah". Acta Palaeontologica Polonica. 66:

    List of organisms named after works of fiction

    List_of_organisms_named_after_works_of_fiction

  • Thylacocephala
  • Extinct group of arthropods

    diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 e10509. doi:10.7717/peerj.10509. ISSN 2167-8359. PMC 7821760

    Thylacocephala

    Thylacocephala

    Thylacocephala

  • Agraulos
  • Genus of trilobites

    elsewhere". A. socialis (Billings, 1872) occurs in the Manuels River Formation (Drumian Stage) of Eastern Newfoundland where localities include the eastern side

    Agraulos

    Agraulos

    Agraulos

  • List of Cambrian arthropods
  • diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 e10509. doi:10.7717/peerj.10509. PMC 7821760. PMID 33552709

    List of Cambrian arthropods

    List_of_Cambrian_arthropods

  • Trilobite zone
  • Index fossils to subdivide the Cambrian period

    Shale) and the subsequent Bolaspidella-zone (starting at the base of the Drumian stage). These are overlain by the lowermost Upper Cambrian Cedaria-zone

    Trilobite zone

    Trilobite_zone

  • Corcorania
  • Genus of Ordovician arthropod

    Javier (November 2020). "New exceptionally preserved panarthropods from the Drumian Wheeler Konservat-Lagerstätte of the House Range of Utah". Papers in Palaeontology

    Corcorania

    Corcorania

  • Ribband Group
  • Geologic group in Ireland

    graptolite faunas and acritarchs have been found. Their dating range from the Drumian stage of the Cambrian to the Early-Mid Ordovician. The following is a classification

    Ribband Group

    Ribband_Group

  • Hurdiidae
  • Extinct family of arthropods

    diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian) PeerJ 9:e10509 https://doi.org/10.7717/peerj.10509 Guo, J.; Pates, S.;

    Hurdiidae

    Hurdiidae

    Hurdiidae

  • 2014 in arthropod paleontology
  • Xiao-wen Sun; James B. Jago; Christopher J. Bentley (2014). "Cambrian (Drumian) trilobites from the Gidgealpa 1 drillhole, Warburton Basin, South Australia"

    2014 in arthropod paleontology

    2014_in_arthropod_paleontology

  • Peytoia
  • Extinct genus of radiodont

    diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". PeerJ. 9 e10509. doi:10.7717/peerj.10509. ISSN 2167-8359. PMC 7821760

    Peytoia

    Peytoia

    Peytoia

  • Kutorginata
  • Extinct genus of shelled animals

    Cambrian] Incertae sedis genera: Anomalocalyx Brock, 1999 [mid-Cambrian (Drumian)] Some species of Kutorgina have a concavo-convex shell, with the smaller

    Kutorginata

    Kutorginata

    Kutorginata

  • Eodiscina
  • Suborder of agnostid trilobites

    collected from the lower part of the Menevia Formation (Mid Cambrian Drumian Stage), Mawddachites hicksi Biozone, of Dwrhyd near Nine Wells on the St

    Eodiscina

    Eodiscina

    Eodiscina

  • Mesones Group
  • Geologic formation in Spain

    Vintaned, José Antonio; Gozalo, Rodolfo (27 August 2025). "Cambrian(Stage 4-Drumian)non-trilobite arthropods from the Murero biota (Spain)". Journal of the

    Mesones Group

    Mesones_Group

  • Fortunian
  • First stage of Cambrian Period

    i a o. F u r o n g. E Fortunian "Stage 2" "Stage 3" "Stage 4" Wuliuan Drumian Guzhangian Paibian Jiangshanian "Stage 10" Tremadocian Ediacaran      

    Fortunian

    Fortunian

    Fortunian

  • List of flood basalt provinces
  • Continental flood basalts and oceanic plateaus

    event Jiangshanian c. 494* Paibian c. 497* Series 3 Guzhangian c. 500.5* Drumian c. 504.5* Stage 5 c. 509 Series 2 Stage 4 c. 514 Stage 3 c. 521 Terreneuvian

    List of flood basalt provinces

    List_of_flood_basalt_provinces

  • Emeraldella
  • Extinct genus of arthropods

    anatomy of the artiopod Emeraldella brutoni from the middle Cambrian (Drumian) of western Utah". PeerJ. 7 e7945. doi:10.7717/peerj.7945. ISSN 2167-8359

    Emeraldella

    Emeraldella

    Emeraldella

  • 2024 in paleontology
  • Ortega-Hernández, J. (2024). "Benthic pterobranchs from the Cambrian (Drumian) Marjum Konservat-Lagerstätte of Utah". Papers in Palaeontology. 10 (3)

    2024 in paleontology

    2024_in_paleontology

  • Banffiidae
  • Extinct Cambrian family of animals

    Temporal range: about 518–501 Ma PreꞒ Ꞓ O S D C P T J K Pg N Cambrian Stage 3—Drumian H. confusus B. constricta B. episoma Fossils and reconstructions of banffiids

    Banffiidae

    Banffiidae

    Banffiidae

  • Yuknessia
  • Genus of marine worm-like animals

    Yuknessia Temporal range: Drumian, 508–507 Ma PreꞒ Ꞓ O S D C P T J K Pg N Fort. 2 3 4 W D G P J 10 Scientific classification Kingdom: Animalia Phylum:

    Yuknessia

    Yuknessia

  • Cambrian Stage 4
  • Stage of the Cambrian period

    i a o. F u r o n g. E Fortunian "Stage 2" "Stage 3" "Stage 4" Wuliuan Drumian Guzhangian Paibian Jiangshanian "Stage 10" Tremadocian Ediacaran      

    Cambrian Stage 4

    Cambrian_Stage_4

  • Nepeidae
  • Nepeidae Temporal range: Drumian to Guzhangian PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Kingdom: Animalia Phylum: Arthropoda Clade: †Artiopoda

    Nepeidae

    Nepeidae

  • Mollisoniida
  • Extinct order of chelicerates

    Javier (November 2020). "New exceptionally preserved panarthropods from the Drumian Wheeler Konservat-Lagerstätte of the House Range of Utah". Papers in Palaeontology

    Mollisoniida

    Mollisoniida

    Mollisoniida

  • Imbricata
  • Order of extinct blastozoan echinoderms

    Imbricata Temporal range: Cambrian Stage 4–Drumian PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Kingdom: Animalia Phylum: Echinodermata Class:

    Imbricata

    Imbricata

  • Conodont biostratigraphy
  • Use of a particular fossil class to identify stratigraphy

    Westergaardodina quadrata Shandongodus priscus - Hunanognathus tricuspidatus Drumian Gapparodus bisulcatus - Westergaardodina brevidens Wuliuan Series 2 "Stage

    Conodont biostratigraphy

    Conodont_biostratigraphy

  • List of fossiliferous stratigraphic units in Antarctica
  • Guzhangian-Cambrian Stage 10 Nelson Limestone Guzhangian Spurs Formation Wuliuan-Drumian Taylor Formation Wuliuan Schneider Hills Limestone Cambrian Stage 3-Stage

    List of fossiliferous stratigraphic units in Antarctica

    List_of_fossiliferous_stratigraphic_units_in_Antarctica

  • Cambrian Stage 2
  • Second and last age of the Terreneuvian Epoch

    i a o. F u r o n g. E Fortunian "Stage 2" "Stage 3" "Stage 4" Wuliuan Drumian Guzhangian Paibian Jiangshanian "Stage 10" Tremadocian Ediacaran      

    Cambrian Stage 2

    Cambrian_Stage_2

  • Pagetia
  • Genus of trilobites

    Pagetia bootes Walcott, 1916, from the middle Cambrian (late Wuliuan or base Drumian) Burgess Shale fossil Lagerstätte. The species occurs with Ptychagnostus

    Pagetia

    Pagetia

    Pagetia

  • Ptychagnostus
  • Extinct genus of trilobites

    Angelin, 1851 from the Ptychagnostus punctuosus zone of the Alum Shale (Drumian), Sweden (by original designation). Official ruling on the conservation

    Ptychagnostus

    Ptychagnostus

    Ptychagnostus

  • Duchesnay Formation
  • Geologic formation in British Columbia, Canada

    Duchesnay Formation Stratigraphic range: Drumian? Type Formation Unit of Chancellor Group Location Region British Columbia Country Canada

    Duchesnay Formation

    Duchesnay_Formation

  • Caerfai Bay
  • Human settlement in Wales

    is in sharp sill-like contact with baked fossiliferous Middle Cambrian (Drumian) mudstones from within the lower part of the Menevia Formation. Trilobite

    Caerfai Bay

    Caerfai Bay

    Caerfai_Bay

  • 2019 in brachiopod paleontology
  • Spiriferida. Nisusia multicostata Sp. nov Valid Holmer et al. Cambrian (Drumian) Mila Formation Iran A member of Kutorginida. Nottina Gen. et sp. nov Valid

    2019 in brachiopod paleontology

    2019_in_brachiopod_paleontology

  • Lepidocystidae
  • Extinct family of marine invertebrates

    Lepidocystidae Temporal range: Cambrian Stage 4–Drumian PreꞒ Ꞓ O S D C P T J K Pg N The lepidocystid Kinzercystis Scientific classification Kingdom: Animalia

    Lepidocystidae

    Lepidocystidae

    Lepidocystidae

  • List of geochronologic names
  • Florschutz, 1950 Dresbachian 501 496.8 age Cambrian North America Howell, 1944 Drumian 506.5 503 age Cambrian ICS Drum Mountains (Utah, US) Peng & Robinson, 2000

    List of geochronologic names

    List_of_geochronologic_names

  • Polygoniella
  • appearance showed that their modern body plan existed since at least the Drumian. Richards, Jared C.; Ortega-Hernández, Javier (2026). "Predator-prey scaling

    Polygoniella

    Polygoniella

    Polygoniella

  • Jiangshanian
  • Second age of the Furongian epoch

    i a o. F u r o n g. E Fortunian "Stage 2" "Stage 3" "Stage 4" Wuliuan Drumian Guzhangian Paibian Jiangshanian "Stage 10" Tremadocian Ediacaran      

    Jiangshanian

    Jiangshanian

  • List of lagerstätten
  • Julien; Pratt, Brian R. (29 July 2015). "Taphonomy of the middle Cambrian (Drumian) Ravens Throat River Lagerstätte, Rockslide Formation, Mackenzie Mountains

    List of lagerstätten

    List_of_lagerstätten

  • Ctenocystoidea
  • Extinct clade of marine invertebrates

    earlier, in late Cambrian Stage 4. Most species date to the Wuliuan and Drumian ages of the Cambrian. The geologically youngest ctenocystoid, the only

    Ctenocystoidea

    Ctenocystoidea

    Ctenocystoidea

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