Huangzhishan section, Bed 23 (new), Huzhou city (Permian of China)

Where: Zhejiang, China (30.9° N, 120.0° E: paleocoordinates 17.3° N, 101.9° E)

• coordinate stated in text

• small collection-level geographic resolution

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

• Conodont-barren interval between N. meishanensis and H. parvus zones

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, muddy limestone

Size class: macrofossils

Primary reference: Z. Q. Chen, J. Tong, K. Zhang, H. Yang, Z. Liao, H. Song, and J. Chen. 2009. Environmental and biotic turnover across the Permian-Triassic boundary on a shallow carbonate platform in western Zhejiang, South China. Australian Journal of Earth Sciences 56(6):775-797 [M. Clapham/M. Clapham]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 105214: authorized by Matthew Clapham, entered by Matthew Clapham on 17.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• Table gives range-through data - only those taxa confidently placed in a bed (either first or last appearance, or figured in an illustration) are listed. In many beds the figured specimens do not match the range chart.
Tubothalamea
 Miliolida - Cornuspiridae
Hemigordius sp. Schubert 1908
Bivalvia
 Pectinida - Limidae
Palaeolima sp. Hind 1903 file clam
 Ostreida - Bakevelliidae
Towapteria sp. Nakazawa and Newell 1968 oyster
Strophomenata
 Productida - Paucispiniferidae
Lampangella cf. lata Waterhouse 1983
 Productida - Monticuliferidae
Rhynchonellata
 Orthida - Schizophoriidae
Kotlaia strophiria Xu and Grant 1994
 Spiriferida - Martiniidae
Martinia orbicularis Gemmellaro 1899