Youjianzhai-5 (Triassic of China)

Where: Guizhou, China (25.6° N, 106.8° E: paleocoordinates 6.5° N, 96.5° E)

When: Hindeodus parvus conodont zone, Daye Formation, Griesbachian (251.9 - 250.5 Ma)

Environment/lithology: open shallow subtidal; lithified, calcareous packstone

Size class: mesofossils

Preservation: original calcite, replaced with calcite

Collection methods: bulk, mechanical,

Primary reference: W.J. Foster, D.J. Lehrmann, M. Yu, L. Ji, and R.C. Martindale. 2018. Persistent Environmental Stress Delayed the Recovery of Marine Communities in the Aftermath of the Latest Permian Mass Extinction. Paleoceanography and Paleoclimatology 33:338-353 [W. Foster/W. Foster]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 200989: authorized by William Foster, entered by William Foster on 28.04.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Tentaculita
 Microconchida -
Microconchus aberrans Hohenstein 1913
Rhynchonellata
 Spiriferida - Ambocoeliidae
"Orbicoelia speciosa" = Speciothyris speciosa
"Orbicoelia speciosa" = Speciothyris speciosa Wang 1955
Bivalvia
 Nuculanida - Tindariidae
Austrotindaria antiqua Foster et al. 2017 clam
Austrotindaria svalbardensis Foster et al. 2017 clam
 Nuculanida - Nuculanidae
Dacryomya skorochodi Kiparisova 1938 pointed nut clam
 Pectinida - Claraiidae
Claraia liuqiaoensis He et al. 2007 scallop
 Pectinida - Hunanopectinidae
Leptochondria spp. Bittner 1891 scallop
 Ostreida - Bakevelliidae
Bakevellia exporrecta Lepsius 1878 oyster
Towapteria scythica Wirth 1936 oyster
 Cardiida - Anthracosiidae
 Trigoniida - Myophoriidae
Neoschizodus laevigatus Ziethen 1830 clam
Gastropoda
 Caenogastropoda - Goniasmatidae
Wannerispira shangganensis Kaim and Nützel 2010 snail
 Neritoidea - Naticopsidae
Naticopsis sp. M'Coy 1844 snail
 Bellerophontida - Bellerophontidae
Retispira asiatica Wirth 1936 snail