These form the so-called Ceratopyge biofacies
Trilobites and biofacies
in the Ordovician Oland Series (Tremadocianmid Darriwilian) of Baltica and a brief comparison with the Yangtze Plate.
Arenig (Middle Ordovician) ostracods from Baltoscandia: fauna, assemblages and biofacies
In this paper, we estimated the water-depth ranks of 374 sections during the Hirnantian based on their lithofacies and biofacies
and reconstructed 2D and 3D palaeotopographic maps using tools in the ArcGIS software.
However, the Middle Tianshan-Beishan Region has its own lithological and biofacies
characters, although some species are shared with the Siberian province.
Arenig (Middle Ordovician) ostracodes from Baltoscandia: fauna, assemblages and biofacies
Review of the Ordovician rhynchonelliformean Brachiopoda of the East Baltic: their distribution and biofacies
of late early Llandovery (Coronograptus cyphus) age.
of the Iranian Oil Consortium Agreement area: Iranian Oil Operating Companies, Geological and Exploration Division, Report 1082, 89.
Further detailed quantitative study may reveal chitinozoan biofacies
(such as those recognized by Nestor 1998 in the Rhuddanian of the East Baltic region) in the interval represented by the Lower and Upper Visby formations.
annulatum was most common in shallow-water environments close to the fair wave base, but occasionally it occurs in deeper-water carbonate facies (cephalopod limestone biofacies
, platy limestone with common trilobites) or even off-shore shales.
The Ikla and Staicele sections exhibit the transition from shelly to graptolite biofacies
and have received attention as the type sections of several lithostratigraphical units (Saarde Formation, Ikla, Lemme, and Staicele members).