ammonites
Carnalpia nivosa Community in the Carnic Alps (Silurian of Austria)

Where: Austria (46.7° N, 13.0° E: paleocoordinates 22.3° N, 1.4° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Cyrtograptus rigidus zone, Sheinwoodian (428.2 - 426.2 Ma)

Environment/lithology: marine; ferruginous, shelly/skeletal limestone and shale

• "...bivalves, brachiopods, and trilobites occur disarticulated. All bivalves are filtrators...Epibyssate bivalves...document...together with disarticulation of shells and presence of current drift derived cephalopods, current activity. [High diversity and juvenile mollusks] indicate a well-aerated sea bottom. Sediment type and fossil preservation speak for an environment below wave base."
• "The shells occur disarticulated in biodetrital limestone which forms lenses in the dark graptolitic shales. The horizon is a part of the ferruginous limestone formation."

Collection methods: Author gives table with inferred life mode and observed abundance of bivalve species.

Primary reference: J. Kříž. 1999. Bivalvia communities of Bohemian type from the Silurian and Lower Devonian carbonate facies. in A. J. Boucot and J. D. Lawson, eds. Paleocommunities--a case study from the Silurian and Lower Devonian. Cambridge University Press, Cambridge. 229-252 [M. Foote/M. Foote/P. Wagner] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 14158: authorized by Michael Foote, entered by Michael Foote on 20.05.2002