LON 7, Longyuan section (Triassic of China)

Where: Guangxi, China (24.4° N, 107.4° E: paleocoordinates 5.9° N, 97.7° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Luolou Formation, Griesbachian (252.2 - 251.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

• inner to mid-shelf setting and is generally dominated by Renalcis-type calcimicrobes
• lens-shaped, laterally discontinuous shell coquinas interbedded within microbial


Size class: macrofossils

Collection methods: Repository: Palaeontological Institute and Museum of the University of Zurich (PIMUZ)

Primary reference: M. Hautmann, B. Bagherpour, M. Brosse, A. Frisk, R. Hofmann, A. Baud, A. Nützel, N. Goudemand, and H. Bucher. 2015. Competition in slow motion: the unusual case of benthic marine communities in the wake of the end-Permian mass extinction. Palaeontology 58:871-901 [W. Kiessling/M. Krause]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 187267: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 19.07.2017, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

 Spiriferida - Ambocoeliidae
"Orbicoelia speciosa" = Speciothyris speciosa
"Orbicoelia speciosa" = Speciothyris speciosa Wang 1955
 Lingulida - Lingulidae
? Sinolingularia sp. Peng and Shi 2008
 Myalinida - Myalinidae
Myalinella newelli Hautmann et al. 2011 clam
 Myalinida - Atomodesmatidae
Atomodesma sp. Beyrich 1865 clam
 Pectinida - Entoliidae
Scythentolium scutigerulus Hautmann et al. 2011 scallop
 Pectinida - Heteropectinidae
Eumorphotis shajingengi Hautmann et al. 2011 scallop
 Pectinida - Hunanopectinidae
Leptochondria albertii Goldfuss 1838 scallop
 Pectinida - Pterinopectinidae
Claraia liuqiaoensis He et al. 2007 scallop
 Ostreida - Bakevelliidae
Towapteria scythica Wirth 1936 oyster
Bakevellia ceratophaga von Schlotheim 1816 oyster
 Mytilida - Mytilidae
Modiolus sp. Lamarck 1801 mussel
 Cardiida - Kalenteridae
Permophorus cf. similis Girty 1927 clam
 Neritoidea - Naticopsidae
Naticopsis sp. M'Coy 1844 snail
 Murchisoniina - Gosseletinidae
Wannerispira shangganensis Kaim and Nützel 2010 snail
 Microconchida -
Microconchus aberrans Hohenstein 1913