This article lists the fauna of the Guanshan Biota.
The Guanshan Biota is a collection of organisms from Cambrian China within the Wulongqing Formation, dating to near the beginning of Cambrian Stage 4. It is distinguished by its shallow depositional environment and large quantities of brachiopods.[1]
Ecdysozoa
Scalidophora
Genus
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Species
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Material
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Notes
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Images
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Guanduscolex
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Several specimens
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Digestive tract preserved[2]
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Palaeoscolex
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Two incomplete specimens
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Also similar to Sahascolex[3]
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Mafangscolex
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3 fragmentary specimens
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Unclear whether it belongs to this species due to lack of preserved mouthparts
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Yunnanoscolex[4]
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Around 50 specimens, most fragmentary
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Unusually large for palaeoscolecids
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Wudingscolex[4]
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Two specimens
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Similar to Yunnanoscolex
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Paramaotianshania[4]
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15 specimens, 3 with introverts preserved
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Differentiated from Maotianshania by hair-like protrusions and a larger size
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Corynetis[4]
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Over 100 specimens, around 10 being well-preserved
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Has an unusual looped intestine
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Xiaoheiqingella[5]
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One specimen
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Likely a new species, however the lack of specimens means no name has been provided
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Eximipriapulus?
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Four specimens
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Specimens all found inside hyolith shells, suggesting a “hermiting” lifestyle for the genus.[6]
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Panarthropoda
Genus
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Species
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Material
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Notes
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Images
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Guanshancaris
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Multiple frontal appendages and oral cones
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An amplectobeluid radiodont, formerly placed within Anomalocaris.[7]
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Paranomalocaris
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- P. simplex[8]
- P. multisegmentalis[9]
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Multiple frontal appendages
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Unusually similar to the frontal appendages of Kylinxia, possibly a relative
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Astutuscaris[10]
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One mostly complete specimen
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Placement within Arthropoda uncertain, no limbs other than frontal appendages preserved
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Hallucigenia
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- H. fortis
- H. hongmeia[11]
- H. sparsa
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Dozens of isolated sclerites, a few complete specimens[12]
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One of the most widely distributed lobopodians
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Guangweicaris
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Over 150 specimens[13]
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Most recent known fuxianhuiid
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Leanchoilia
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Several specimens
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Also known from the Maotianshan Shales
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Tuzoia[12]
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- T. sinensis
- T. ?retifera
- T. tylodensa
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Multiple carapaces
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Known from all around the world
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Isoxys[12]
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Multiple carapaces
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Wide distribution, one of the most common Cambrian arthropods globally
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Longquania[14]
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Several partial specimens
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Possibly within Trilobitomorpha
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Branchiocaris
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Several specimens
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One of several species from China
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Liangshanella[12]
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- L. liangshanensis
- L. yunnanensis
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Multiple carapaces
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Also known from the Burgess Shale
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Houlongdongella[12]
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Multiple carapaces
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|
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Neokunmingella[12]
|
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Multiple carapaces
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Waptia[12]
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Several partial specimens
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Mainly known from the Burgess Shale
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Parapeytoia[12]
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Several appendages
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Originally classed as a radiodont
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Artiopoda
Genus
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Species
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Material
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Notes
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Images
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Sinoburius[12]
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Well-preserved specimens
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Mainly known from the Maotianshan Shales
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Panlongia
|
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Multiple specimens
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Assigned to Nektaspida in 2024[15]
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Redlichia[12]
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- R. mansuyi
- R. yunnanensis
- R. noetlingi
- R. mai
- R. chinensis
- R. kaiyangensis
|
Hundreds of fossils
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Most diverse genus in the Guanshan Biota, R. mansuyi specimens preserve gut structures[16]
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Palaeolenus
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- P. lantenoisi
- P. douvillei
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Hundreds of fossils
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Multiple specimens preserve gut structures[16]
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Megapalaeolenus
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Eight specimens
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Merged into Palaeolenus multiple times[17]
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Yuehsienszella[12]
|
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Multiple specimens
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Found in various other formations in Asia[18]
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Kootenia[12]
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Mainly known from the Burgess Shale
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Breviredlichia[19]
|
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Multiple specimens
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Has very large genal spines
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Naraoiidae indet.[20]
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Unapplicable
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3 specimens
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Similar to both naraoiids and Emucaris
|
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Sidneyidae indet.[21]
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Unapplicable
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One nearly complete specimen
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Differing tail fan and tergite shapes distinguish it from Sidneyia
|
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Bailongia[22]
|
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One complete specimen
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Unclear position within Artiopoda
|
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Spiralia
Genus
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Species
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Material
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Notes
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Images
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Bryozoa indet?[23]
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Unapplicable
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One specimen
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Possible bryozoan, earliest record of such if it is one.
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Gaoloufangchaeta[24]
|
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One mostly complete specimen
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Earliest member of Errantia known[25]
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Guanshanchaeta[26]
|
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One specimen
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First annelid from Cambrian China found
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Brachiopoda
Genus
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Species
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Material
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Notes
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Images
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Linevitus
|
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Several specimens
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Some specimens preserve helens[12]
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Heliomedusa
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Several specimens
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Soft tissues such as the lophophore are preserved.[12]
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Diandongia
|
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Over 200 specimens
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Likely epifaunal due to its very long pedicle.[27]
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Acanthotretella
|
|
Around 15 specimens
|
Likely epifaunal similar to Diandongia above.[28]
|
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Eoobolus
|
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Around 700 specimens
|
Formerly placed within Lingulellotreta[29]
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Nisusia
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6 specimens[1]
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A very rare calcareous brachiopod
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Kutorgina
|
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8 specimens[1]
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A very rare calcareous brachiopod
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Neobolus
|
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Thousands of specimens
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Some fossils preserve unusual tubes, which are likely parasites[30]
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Westonia
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Over 500 specimens[1]
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Most common in the higher assemblages of the biota
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Linnarssonia
|
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Around 60 specimens[1]
|
Rarest non-calcareous brachiopod in the Guanshan Biota
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Schizopholis[19]
|
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Multiple specimens
|
|
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Palaeobolus[19]
|
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Multiple specimens
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Closely related to lingulids
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Acrothele
|
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Multiple specimens
|
|
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Deuterostomia
Genus
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Species
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Material
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Notes
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Images
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Vetulicola
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- V. gangtoucunensis
- V. longbaoshanensis
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Hundreds of specimens
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The two recorded species may be synonymous with each other.[12]
|
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Wudingeocrinus[31]
|
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Several specimens
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Similar to a genus from the Balang fauna
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Kunmingeocrinus[31]
|
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Two specimens
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Possibly weakly biomineralised
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Phlogites[12]
|
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Several specimens
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Possibly synonymous with Cheungkongella?
|
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Eldonioidea indet.[20]
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Unapplicable
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Over 30 specimens
|
Possibly within Rotadiscidae
|
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Enigmatic/Miscellaneous
Genus
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Species
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Material
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Notes
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Images
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Dinomischidae indet?[23]
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Unapplicable
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One specimen
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Closely resembles Xianguangia, may instead be a cnidarian
|
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Allonnia[12]
|
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Hundreds of specimens
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Member of Chancelloriidae, possibly sponge relatives?
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Sinoflabrum[12]
|
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Several specimens
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Similar to both Ediacaran biota and sponges
|
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Guangweia[33]
|
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30 specimens, 10 well-preserved
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Similar in form to the Ediacaran biota
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Nidelric[32]
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Multiple spines
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An enigmatic animal, possibly related to the chancelloriids
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Porifera
Genus
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Species
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Material
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Notes
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Images
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Crumillospongia[12]
|
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Several specimens
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Known from multiple sites around the world.
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Choia[12]
|
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Several specimens
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Known from multiple sites such as the Burgess Shale.
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Paraleptomitella[12]
|
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Many specimens
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The most common sponge in the Guanshan Biota.
|
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Archaeocyatha indet?
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Unapplicable
|
Two specimens
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Unusually similar to vauxiid sponges, suggesting a relationship between the two[34]
|
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Cnidaria
See also
References
- ^ a b c d e Chen, Feiyang; Brock, Glenn A.; Zhang, Zhiliang; Laing, Brittany; Ren, Xinyi; Zhang, Zhifei (January 2021). "Brachiopod-dominated communities and depositional environment of the Guanshan Konservat-Lagerstätte, eastern Yunnan, China". Journal of the Geological Society. 178 (1). Bibcode:2021JGSoc.178...43C. doi:10.1144/jgs2020-043.
- ^ Shixue, Hu; Yong, Li; Huilin, Luo; Xiaoping, Fu; Ting, You; Jiyuan, Pang; Qi, Liu; Steiner, Michael (April 2008). "New Record of Palaeoscolecids from the Early Cambrian of Yunnan, China". Acta Geologica Sinica - English Edition. 82 (2): 244–248. Bibcode:2008AcGlS..82..244H. doi:10.1111/j.1755-6724.2008.tb00574.x.
- ^ Liu, Jianni; Han, Jian; Li, Jinshu; Wu, Yichen; Peng, Jie; Qi, Nan; Yang, Yiyao; Li, Juan (December 2016). "New Localities and Palaeoscolecid Worms from the Cambrian (Stage 4, Series 2) Guanshan Biota in Kunming, Yunnan, South China". Acta Geologica Sinica - English Edition. 90 (6): 1939–1945. Bibcode:2016AcGlS..90.1939L. doi:10.1111/1755-6724.13013.
- ^ a b c d Hu, S.; Steiner, M.; Zhu, M.; Luo, H.; Forchielli, A.; Keupp, H.; Zhao, F; Liu, Q. (29 February 2012). "A new priapulid assemblage from the early Cambrian Guanshan fossil Lagerstätte of SW China". Bulletin of Geosciences: 93–106. doi:10.3140/bull.geosci.1238.
- ^ Hu, Shi-Xue; Zhu, Mao-Yan; Zhao, Fang-Chen; Steiner, Michael (November 2017). "A crown group priapulid from the early Cambrian Guanshan Lagerstätte". Geological Magazine. 154 (6): 1329–1333. Bibcode:2017GeoM..154.1329H. doi:10.1017/S001675681700019X.
- ^ Yang, Xiao-yu; Smith, Martin R.; Yang, Jie; Li, Wei; Guo, Qing-hao; Li, Chun-li; Wang, Yu; Zhang, Xi-guang (November 2021). "A 'hermit' shell-dwelling lifestyle in a Cambrian priapulan worm". Current Biology. 31 (21): R1420 – R1421. Bibcode:2021CBio...31R1420Y. doi:10.1016/j.cub.2021.10.003. PMID 34752764.
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- ^ Wang, YuanYuan; Huang, DiYing; Hu, ShiXue (November 2013). "New anomalocardid frontal appendages from the Guanshan biota, eastern Yunnan". Chinese Science Bulletin. 58 (32): 3937–3942. Bibcode:2013ChSBu..58.3937W. doi:10.1007/s11434-013-5908-x.
- ^ Jiao, De guang; Du, Kunsheng (2022). "A new euarthropod from the Cambrian Stage 4 Guanshan Biota of South China" (PDF). Acta Palaeontologica Polonica. 67. doi:10.4202/app.00937.2021.
- ^ Steiner, M.; Hu, S.X.; Liu, J.; Keupp, H. (29 February 2012). "A new species of Hallucigenia from the Cambrian Stage 4 Wulongqing Formation of Yunnan (South China) and the structure of sclerites in lobopodians". Bulletin of Geosciences: 107–124. doi:10.3140/bull.geosci.1280.
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- ^ Chen, Hong; Legg, David; Liu, Yu; Hou, Xian-guang (2020). "New data on the anatomy of fuxianhuiid arthropod Guangweicaris spinatus from the lower Cambrian Guanshan Biota, Yunnan, China". Acta Palaeontologica Polonica. 65. doi:10.4202/app.00508.2018.
- ^ Zhu, Yuyan; Zeng, Han; Liu, Yao; Zhao, Fangchen (2023). "New artiopodan euarthropods from the Chengjiang fauna (Cambrian Stage 3) at Malong, Yunnan, China". Acta Palaeontologica Polonica. 68. doi:10.4202/app.01080.2023.
- ^ Luo, Shengxiang; Liu, Jianni (February 2024). "Exceptionally preserved Panlongia tetranodusa from the early Cambrian sheds light on the evolution of arthropods". Science Bulletin. 69 (3): 308–313. Bibcode:2024SciBu..69..308L. doi:10.1016/j.scib.2023.11.043. PMID 38057233.
- ^ a b Hopkins, Melanie J.; Chen, Feiyang; Hu, Shixue; Zhang, Zhifei (21 September 2017). "The oldest known digestive system consisting of both paired digestive glands and a crop from exceptionally preserved trilobites of the Guanshan Biota (Early Cambrian, China)". PLOS ONE. 12 (9): e0184982. Bibcode:2017PLoSO..1284982H. doi:10.1371/journal.pone.0184982. PMC 5608306. PMID 28934290.
- ^ Zhao, Wenyu; Liu, Jianni; Bicknell, Russell (2020). "Geometric morphometric assessment of Guanshan trilobites (Yunnan Province, China) reveals a limited diversity of palaeolenid taxa". Palaeontologia Electronica. doi:10.26879/1062.
- ^ Singh, Birendra P.; Virmani, Nancy; Bhargava, O.N.; Kishore, Naval; Gill, Aman (June 2014). "Yuehsienszella (Cambrian Series 2) Trilobite From the Parahio Valley, Spiti Region (Zanskar-Spiti Sub-Basin), India and Its Biostratigraphic Significance". Journal of the Palaeontological Society of India. 59 (1): 81–88. Bibcode:2014JPalS..59...81S. doi:10.1177/0971102320140107.
- ^ a b c Chen, Feiyang; Zhang, Zhifei; Betts, Marissa J.; Zhang, Zhiliang; Liu, Fan (July 2019). "First report on Guanshan Biota (Cambrian Stage 4) at the stratotype area of Wulongqing Formation in Malong County, Eastern Yunnan, China". Geoscience Frontiers. 10 (4): 1459–1476. Bibcode:2019GeoFr..10.1459C. doi:10.1016/j.gsf.2018.09.010.
- ^ a b Zhao, Jun; Li, Yujing; Selden, Paul A.; Cong, Peiyun (2 July 2020). "New occurrence of the Guanshan Lagerstätte (Cambrian Series 2, Stage 4) in the Kunming area, Yunnan, southwest China, with records of new taxa". Alcheringa: An Australasian Journal of Palaeontology. 44 (3): 343–355. Bibcode:2020Alch...44..343Z. doi:10.1080/03115518.2020.1781257.
- ^ Zhao, Jun; Li, Yujing; Selden, Paul A.; Cong, Peiyun; Yang, Zhixin (1 July 2022). "A Sidneyia-Like Euarthropod from the Guanshan Biota (Cambrian Series 2, Stage 4), Eastern Yunnan, Southwest China". Paleontological Research. 26 (3): 47. Bibcode:2022PalRe..26.0047Z. doi:10.2517/PR200047.
- ^ Jiao, De-Guang; Du, Kun-Sheng; Zhang, Xi-Guang; Yang, Jie; Eggink, Daniel (May 2022). "A new small soft-bodied non-trilobite artiopod from the Cambrian Stage 4 Guanshan Biota". Geological Magazine. 159 (5): 730–734. Bibcode:2022GeoM..159..730J. doi:10.1017/S0016756821001254.
- ^ a b Zhao, Jun; Li, Yujing; Selden, Paul A. (31 March 2023). "Two new metazoans from the Cambrian Guanshan biota of China". Frontiers in Ecology and Evolution. 11. doi:10.3389/fevo.2023.1160530.
- ^ Zhao, Jun; Li, Yujing; Selden, Paul A. (26 April 2023). "A new primitive polychaete with eyes from the lower Cambrian Guanshan biota of Yunnan Province, China". Frontiers in Ecology and Evolution. 11. doi:10.3389/fevo.2023.1128070.
- ^ Yang, Xiaoyu; Aguado, M. Teresa; Helm, Conrad; Zhang, Zhiqian; Bleidorn, Christoph (April 2024). "New fossil of Gaoloufangchaeta advances the origin of Errantia (Annelida) to the early Cambrian". Royal Society Open Science. 11 (4). Bibcode:2024RSOS...1131580Y. doi:10.1098/rsos.231580. PMC 11004674. PMID 38601033.
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- ^ Zhang, Zhifei; Holmer, Lars E.; Liang, Yue; Chen, Yanlong; Duan, Xiaolin (2 June 2020). "The oldest ' Lingulellotreta ' (Lingulata, Brachiopoda) from China and its phylogenetic significance: integrating new material from the Cambrian Stage 3–4 Lagerstätten in eastern Yunnan, South China". Journal of Systematic Palaeontology. 18 (11): 945–973. Bibcode:2020JSPal..18..945Z. doi:10.1080/14772019.2019.1698669.
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- ^ a b Zhao, Jun; Guo, Jin; Selden, Paul A.; Cong, Pei-Yun; Li, Yu-Jing (June 2022). "A new eocrinoid from the Guanshan Biota (Cambrian Series 2, Stage 4), with implication of the development of different attachment modes in early Cambrian". Palaeoworld. 31 (2): 185–193. doi:10.1016/j.palwor.2021.08.001.
- ^ a b Zhao, Jun; Li, Guo-Biao; Selden, Paul A. (November 2018). "New well-preserved scleritomes of Chancelloriida from early Cambrian Guanshan Biota, eastern Yunnan, China". Journal of Paleontology. 92 (6): 955–971. Bibcode:2018JPal...92..955Z. doi:10.1017/jpa.2018.43.
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