ammonites
Bangtoupo F17, Qingyan, China (Triassic to of China)

Where: Guizhou, China (26.3° N, 106.7° E: paleocoordinates 13.3° N, 95.1° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Leidapo Member (Qingyan Formation), Pelsonian to Pelsonian (247.2 - 242.0 Ma)

• Basal upper Anisian. Schreyerites binodosus and Paraceratites trinodosus zones. Yuqing subformation

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, argillaceous wackestone and lithified, calcareous claystone

Size classes: macrofossils, mesofossils

Preservation: original calcite

Collection methods: bulk, mechanical, peel or thin section,

• All abundance data given as "statistical individuals"

•Bivalves, brachiopods: Double-valved shells + higher number of single shells (right or left)

•Echinoderms, vertebrates: one indivudual if number of parts more than parts in living animal. crinoids > 150 columnalia = 1 individual,

•Others: all fragments as one

Primary reference: F. Stiller. 2001. Fossilvergesellschaftungen, Paläoökologie und paläosynökologische Entwicklung im Oberen Anisium (Mittlere Trias) von Qingyan, insbesondere Bangtoupo, Provinz Guizhou, Südwestchina. Münstersche Forschungen zur Geologie und Paläontologie 92:1-523 [W. Kiessling/W. Kiessling/W. Kiessling] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 31613: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 20.05.2003, edited by Marcus Apel