Idealised portrayal of the author Homer

Thanatocoenosis (from Greek language thanatos - death and koinos - common) are all the embedded fossils at a single discovery site.

- Thanatocoenosis

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A biocenosis (UK English, biocoenosis, also biocenose, biocoenose, biotic community, biological community, ecological community, life assemblage), coined by Karl Möbius in 1877, describes the interacting organisms living together in a habitat (biotope).

A freshwater aquatic and terrestrial food web.
The side of a tide pool showing sea stars (Dermasterias), sea anemones (Anthopleura) and sea sponges in Santa Cruz, California.

In other words, it is an assemblage of fossils or a community of specific time, which is different from "death assemblages" (thanatocoenoses).


Genus of dinosaur whose fossils were discovered by Godefroit, Zan & Jin in 2000 on the south bank of the Amur River, dividing China from Russia.


The thanatocoenosis of the type locality of this species further consists of an unidentified hadrosaurine, the lambeosaurine Amurosaurus, an unidentified ankylosaurian, the tyrannosaurid Tarbosaurus bataar, unidentified tortoises, turtles of the species Amuremys planicostata and unidentified crocodiles.

Depositional resolution

Age span of objects that are contained within a stratum.

The rock cycle shows the relationship between igneous, sedimentary, and metamorphic rocks.

Even in such cases there will still be some death assemblage around that has been generated beforehand.

Ciechocinek Formation

Jurassic (lower Toarcian) geologic formation that extends across the Baltic coast, from Grimmen, Germany, to Lithuania, with its major sequence in Poland and a few boreholes in Kaliningrad.

Schwinzer Hellberg clay pit outcrop at Dobbertin
Schwinzer Hellberg clay pit brickyard in 1900, one of the major claystone straction sites of the formation
Brigde over the Schwinzer Hellberg clay pit
The "Estheria Series" is exposed at the vicinity of Żarnów, Wąsosz and Kuraszków, where is composed by paleosols with abundant roots, plants fragments and associated coals, suggesting a limnic shore. The Environment was probably similar to modern Mangroves
Terrestrial environment of the Pliensbachian-Toarcian Fennoscandinavia, with flora based on the Sorthat Formation. Dinosaurs are based on material found on various locations of the Ciechocinek Formation as well Footprints of the underliying Drzewica Formation
Worm-like burrows Planolites come specially from the Polish realm.

The Ciechocinek Formation was, in the late Toarcian a depositional area located north-eastern margin of the North German Basin, where the Sorthat Formation (Bornholm high, Fennoscandinavian coast) and the northern part of the island of Rügen (Ringkøbing-Fyn High), both to the north, provided the terrestrial elements of the Ciechocinek Formation taphocoenosis.