Jiaozishan Section Bed 29 (AJ-47), Anshun County (Permian of China)

Where: Guizhou, China (26.3° N, 105.9° E: paleocoordinates 5.6° N, 95.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Changxing Formation, Changhsingian (254.2 - 252.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, shelly/skeletal, gray chert

Size class: macrofossils

Preservation: mold/impression

Collection methods: All specimens are kept in the Nanjing Institute of Geology and Paleontology, Academia Sinica.

Primary reference: Z. Q. Yao, J. T. Xu, Z. G. Zheng, X. H. Zhao, and Z. G. Mou. 1980. Late Permian Stratigraphy and Fossils in Western Guizhou and Eastern Yunnan 1-277 [M. Clapham/M. Clapham]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 111986: authorized by Matthew Clapham, entered by Matthew Clapham on 02.07.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Spiriferida - Ambocoeliidae
"Crurithyris pigmaea" = Paracrurithyris pigmaea
"Crurithyris pigmaea" = Paracrurithyris pigmaea Liao 1980
Bivalvia
 Pectinida - Euchondriidae
Euchondria anshunensis Xu 1980 scallop
 Pectinida - Limidae
Palaeolima cf. dieneri Frech 1911 file clam
 Pectinida -
Anshunopecten alternatoplicatus Xu and Chang 1980 scallop
Cephalopoda
 Ceratitida - Pleuronodoceratidae
Pleuronodoceras curvaplicatum Zhao et al. 1978 ceratite
Pleuronodoceras anshunense Zheng 1981 ceratite
Pleuronodoceras tenuicostatum Zhao et al. 1978 ceratite
 Ceratitida - Huananoceratidae
"Huananoceras perornatum" = Huananoceras pseudoopalinum Frech 1895 ceratite
Huananoceras pseudoperornatum n. sp. Zheng 1981 ceratite
 Ceratitida - Pseudotirolitidae
Pseudotirolites regularis Zhao et al. 1978 ceratite
Pseudotirolites laibinensis Zhao et al. 1978 ceratite
Pseudotirolites asiaticus Jaekel 1929 ceratite
 Goniatitida - Paragastrioceratidae
Pseudogastrioceras sp. Spath 1936 ammonite
 Goniatitida - Pseudohaloritidae
Qinglongites costatus Zheng 1981 ammonite
Gastropoda
 Bellerophontida - Bellerophontidae
"Tetratubispira micra" = Patellilabia, "Extendilabrum alticarinatum n. sp." = Patellilabia alticarinata, "Aiptospira acutangula n. sp." = Patellilabia alticarinata, "Aiptospira papilionis" = Patellilabia alticarinata, "Aiptospira fragilis" = Patellilabia alticarinata
"Tetratubispira micra" = Patellilabia snail
"Extendilabrum alticarinatum n. sp." = Patellilabia alticarinata Wang 1980 snail
"Aiptospira acutangula n. sp." = Patellilabia alticarinata Wang 1980 snail
"Aiptospira papilionis" = Patellilabia alticarinata Wang 1980 snail
"Aiptospira fragilis" = Patellilabia alticarinata Wang 1980 snail