page_title: Paleobiota of the Ciechocinek Formation
section_title: Crustacea
hierarchical_section_title: Paleobiota of the Ciechocinek Formation / Invertebrata / Crustacea
caption_attribution_description: Cyzicus (Euestheria) obliqua syn. Estheria obliqua English: Estheria obliqua, one of the Conchostraca A: Shell of female from the side; B, male from the side, after removal of one valve of the snell. a' Antennule; a', antenna; ad, muscle which draws together the valves of the shell; f, tail fork; md, mandible Subject: Conchostraca Tag: Invertebrates
context_page_description: The Ciechocinek Formation, is a Jurassic geologic formation that extends from Grimmen, Germany, to Poland. Dinosaur remains are among the fossils that have been recovered from the formation, including the Thyreorporan Emausaurus and others which have not yet been referred to a specific genus. On Poland, the main basin if charaserized mostly by lack of marine microfauna in the Częstochowa-Zawiercie area. It is mainly composed by Foraminiferans: Ammodiscus glumaceous, Trochammina? sp., Lagenammina sp., Saccammina? sp. and Dentalina sp., as well as the Ostracodan Liasina sp. The crustacean Estheria is relatively abundant, along traces of Diplocraterion and the inconclusive remains of Clams, Snails and Fish teeth. The discussed settlement complex, due to its characteristic lithological education with floristic and faunistic analogies, allows without difficulty to parallelize with similarly developed sediments in the Polish Lowlands.
caption: Lioestheria
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