Mafang, event mudstone: Nangaoian, China

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Dinomischidae
Dinomischus isolatus Chen et al. 1989
1 specimen
Demospongiae - Protomonaxonida - Hazeliidae
Hazelia sp. Walcott 1920
42 specimens
Demospongiae - Protomonaxonida - Leptomitidae
Leptomitella conica Chen et al. 1989
7 specimens
Paraleptomitella dictyodroma Chen et al. 1989
15 specimens
Paraleptomitella globula Chen et al. 1989
1 specimen
Leptomitus teretiusculus Chen et al. 1989
21 specimens
Demospongiae - Protomonaxonida - Halichondritidae
Halichondrites sp. Walcott 1920
6 specimens
Demospongiae - Protomonaxonida - Choiidae
Choiaella radiata Rigby and Hou 1995
5 specimens
Hexactinellida - Reticulosa - Protospongiidae
Saetaspongia densa Mehl and Reitner 1993
16 specimens
Nectocarididae
Petalilium latus Luo and Hu 1999
1 specimen
Eldoniidae
Stellostomites eumorpha
127 specimens
Vetulicolida - Vetulicolidae
Vetulicola cuneata Hou 1987
8 specimens
Vetulicolida - Vetulicolata - Didazoonidae
Pomatrum ventralis Luo et al. 1999
2 specimens
unclassified
Sicyphorus rara
13 specimens
Xiangguangia sinica
10 specimens
Allonina phrixothrix
9 specimens
Urokidia aequalis
7 specimens
Phlogites longus Luo and Hu 1999
1 specimen
Hyolithida - Sulcavitidae
Ambrolinevitus platypluteus
2 specimens
Ambrolinevitus ventricosus Qian 1978
2 specimens
Hyolithida
Glossolites magnus
89 specimens
Rhynchonellata - Orthida - Wangyuiidae
Wangyuia yunnanensis Jin 2004
43 specimens
Chileata
Longtancunella chengjiangensis Hou et al. 1999
7 specimens
Lingulata - Lingulida - Obolidae
Lingulella chengjiangensis Jin et al. 1993
230 specimens
Lingulata - Lingulida - Lingulellotretidae
Lingulellotreta malongensis (Rong 1974)
12 specimens
Lingulata - Lingulida - Botsfordiidae
Diandongia pista Rong 1974
1883 specimens
Mickwitziidae
Heliomedusa orienta Sun and Hou 1987
282 specimens
unclassified
Conicula striata Luo et al. 1999
2 specimens
Cotyledion tylodes Luo and Hu 1999
1 specimen
Xenusia - Archonychophora - Paucipodiidae
Paucipodia inermis Chen et al. 1995
Hou et al. 2004
Paucipodia haikouensis Luo and Hu 1999
6 specimens
Odaraiida - Pectocariidae
Pectocaris spatiosa Hou 1999
1 specimen
Bradoriida
Acanthomeridion serratum Hou et al. 1989
1 specimen
Kunmingella douvillei Mansuy 1912
1962 specimens
Malongella bituberculata Chang 1974
1 specimen
Combinivalvula chengjiangensis Hou 1987
7 specimens
unclassified
Jianfengia multisegmentalis Hou 1987
1 specimen
Pseudoiulia cambriensis Hou and Bergström 1998
3 specimens
Kuamaia lata Hou 1987
5 specimens
Saperion glumaceum Hou et al. 1991
1 specimen
Trilobita - Redlichiida - Redlichiidae
Kuanyangia pustulosa (Lu 1941)
1 specimen
Eoredlichia intermedia (Lu 1940)
178 specimens
Trilobita - Redlichiida - Yunnanocephalidae
Yunnanocephalus yunnanensis (Mansuy 1912)
18 specimens
unclassified
Retifacies abnormalis Hou et al. 1989
6 specimens
Squamacula clypeata Hou and Bergström 1997
1 specimen
Nektaspidida
Xandarella spectaculum Hou et al. 1991
6 specimens
Cindarella eucalla Chen et al. 1996
7 specimens
Nektaspidida - Naraoiidae
Naraoia spinosa Zhang and Hou 1985
485 specimens
Naraoia longicaudata Zhang and Hou 1985
391 specimens
Radiodonta - Anomalocarididae
Parapeytoia yunnanensis Hou et al. 1995
1 specimen
Radiodonta - Amplectobeluidae
Amplectobelua symbrachiata Hou et al. 1995
41 specimens
Lyrarapax unguispinus Cong et al. 2014
Cong et al. 2014 1 specimen
Radiodonta - Tamisiocarididae
Anomalocaris saron Hou et al. 1995
17 specimens
unclassified
Ercaicunia multinodosa Luo et al. 1999
21 specimens
? Branchiocaris yunnanensis Hou 1987
42 specimens
Canadaspidida - Canadaspididae
Canadaspis laevigata (Hou and Bergström 1991)
22 specimens
Waptiida - Waptiidae
Waptia ovata Lee 1975
85 specimens
Isoxyida - Isoxyidae
Isoxys paradoxus Hou 1987
10 specimens
Isoxys curvirostratus Vannier and Chen 2000
9 specimens
Isoxys auritus Jiang 1982
130 specimens
Megacheira - Fortiforcipida - Fortiforcipidae
Fortiforceps foliosa Hou and Bergström 1997
2 specimens
Megacheira - Leanchoiliida - Leanchoiliidae
Leanchoilia illecebrosa (Hou 1987)
832 specimens
Fuxianhuiida - Fuxianhuiidae
Fuxianhuia protensa Hou 1987
27 specimens
Fuxianhuiida - Chengjiangocarididae
Chengjiangocaris longiformis Hou and Bergström 1991
1 specimen
unclassified
Shankouia zhenghei Chen et al. 2004
1 specimen
Parvancorinidae
Primicaris lavaformis (Zhang et al. 2003)
39 specimens
Luolishaniida
Facivermis yunnanicus Hou and Chen 1989
1 specimen
Luolishania longicruris Hou and Chen 1989
10 specimens
unclassified
Onychodictyon ferox Hou et al. 1991
11 specimens
Palaeoscolecida - Cricocosmida - Palaeoscolecidae
Mafangscolex sinensis Hou and Sun 1988
674 specimens
Cricocosmiidae
Cricocosmia jinningensis Hou and Sun 1988
1958 specimens
unclassified
Archotuba conoidalis Hou et al. 1999
19 specimens
Selkirkiimorpha - Selkirkiidae
Paraselkirkia jinningensis Hou et al. 1999
13 specimens
Priapulidae
Xiaoheiqingella peculiaris Hu 2002
1 specimen
unclassified
Palaeopriapulites parvus Hou et al. 1999
8 specimens
Corynetis brevis Luo and Hu 1999
1 specimen
Microdictyon sinicum Chen et al. 1989
4 specimens
Hallucigeniidae
Hallucigenia fortis Hou and Bergström 1995
1 specimen
Cardiodictyon catenulum Hou et al. 1991
6 specimens
unclassified
Haikoucaris ercaiensis Chen et al. 2004
6 specimens
Archisaccophyllia kunmingensis Hou et al. 2005
14 specimens
Beidazoon venustum Shu 2005
3 specimens
Heteromorphus confusa Chen 2004
1 specimen
see common names

Geography
Country:China State/province:Yunnan County:Haikou
Coordinates: 24.8° North, 102.6° East (view map)
Paleocoordinates:34.5° North, 159.7° East
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Cambrian Epoch: Series 2
Stage: Stage 3 10 m.y. bin: Cambrian 2
Key time interval: Nangaoian Trilobite zone:  Eoredlichia-Wutingaspis
Age range of interval: 521 - 514 m.y. ago
Stratigraphy
Formation:Yu'anshan Member:Maotianshan
Stratigraphic resolution:group of beds
Stratigraphy comments: Qiongzhusian/Chiungchussuan = Nangaoian = Cambrian stage 3
Lithology and environment
Primary lithology: lithified mudstone
Lithology description: various event mudstone layers
Environment:marine indet.
Taphonomy
Modes of preservation:body,cast,mold/impression
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:bulk,field collection
Reason for describing collection:paleoecologic analysis
Metadata
Also known as:Chengjiang biota
Database number:132330
Authorizer:W. Kiessling, P. Wagner Enterer:U. Merkel, P. Wagner
Research group:marine invertebrate
Created:2012-08-13 23:19:08 Last modified:2012-08-13 08:19:08
Access level:authorizer only Released:2015-08-13 23:19:08
Creative Commons license:CC BY
Reference information

Primary reference:
42578. F. C. Zhao, S. X. Hu, J. B. Caron, M. Y. Zhu, Z. J. Yin and M. Lu. 2012. Spatial variation in the diversity and composition of the Lower Cambrian (Series 2, Stage 3) Chengjiang Biota, Southwest China. Palaeogeography, Palaeoclimatology, Palaeoecology 346/347:54-65 [W. Kiessling/U. Merkel]

Secondary references:

88360 P. Cong, A. C. Daley, G. D. Edgecombe, X. Hou, and A. Chen. 2016. Morphology of the radiodontan Lyrarapax from the early Cambrian Chengjiang biota. Journal of Paleontology 90(4):663-671 [P. Wagner/P. Wagner]
88361 P. Cong, X. Ma, X. Hou, G. D. Edgecombe, and N. J. Strausfeld. 2014. Brain structure resolves the segmental affinity of anomalocaridid appendages. Nature 513:538-542 [P. Wagner/P. Wagner]
88375 X.-G. Hou, X.-Y. Ma, J. Zhao and J. Bergström. 2004. The lobopodian Paucipodia inermis from the Lower Cambrian Chengjiang fauna, Yunnan, China. Lethaia 37:235-244 [P. Wagner/P. Wagner]