Seceda Section, 5.75 m (Triassic of Italy)

Where: Trentino, Italy (46.6° N, 11.7° E: paleocoordinates 6.3° N, 23.6° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Reitzi ammonoid zone, Buchenstein Formation, Illyrian (247.2 - 242.0 Ma)

• Lower Plattenkalk. Late Reitzi or Secedensis Zone.

• bed-level stratigraphic resolution

Environment/lithology: basinal (); dolomitic, black, calcareous mudstone

• Evenly bedded black calcareous to dolomitic mudstones. Often strongly siliceous, laminated, and rich in organic matter. Volcaniclastic detritus and argillaceous material is intercalated.

Size class: macrofossils

Collection methods: surface (in situ),

Primary reference: P. Brack and H. Rieber. 1993. Towards a better definition of the Anisian/Ladinian boundary: new biostratigraphic data and correlations of boundary sections from the Southern Alps. Eclogae Geologicae Helvetiae 86(2):415-527 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 44633: authorized by David Bottjer, entered by Matthew Clapham on 15.09.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Halobiidae
Daonella cerneraensis Brack and Rieber 1993 oyster
 Ostreida - Posidoniidae
Posidonia sp. Bronn 1828 oyster
Cephalopoda
 Ceratitida - Aplococeratidae
Aplococeras sp. Hyatt 1900 ceratite
 Ceratitida - Ceratitidae
Parakellnerites aff. rothpletzi Salomon 1895 ceratite