- Tytuł:
- A new pleurocystitid blastozoan from the Middle Devonian of the Eifel (Germany) and its phylogenetic importance
- Autorzy:
-
Nardin, E.
Bohaty, J. - Powiązania:
- https://bibliotekanauki.pl/articles/20422.pdf
- Data publikacji:
- 2013
- Wydawca:
- Polska Akademia Nauk. Instytut Paleobiologii PAN
- Tematy:
-
new pleurocystitid blastozoan
blastozoan
Middle Devonian
Germany
phylogenetic importance
Echinodermata
Blastozoa
Pleurocystitidae
Regulaecystis
evolution
paleoecology
Eifelian
Devonian
Rhenish Massif - Opis:
- Rich echinoderm fauna from the Middle Devonian of the Eifel (Rhenish Massif, Germany) has yielded specimens of the rare recumbent pleurocystitid rhombiferans. Regulaecystis testudineus sp. nov. extends the stratigraphic range of the pleurocystitids to the Eifelian (Middle Devonian). Specimens show a strongly inflated and ornamented theca, which is unusual for the European pleurocystitids. Phylogenetic analysis of all described pleurocystitid genera suggests a close relationship of Regulaecystis with the other Devonian genera. Results indicate that the degree of inflation and of ornamentation of the theca can be interpreted as convergences within the pleurocystitids due to environmental conditions (such as surface consistency, hydrodynamism). R. testudineus sp. nov. was living as a strict epibenthic vagile organism; lying on muddy soft to firm substrates in quiet to agitated shallow warm water environments.
- Źródło:
-
Acta Palaeontologica Polonica; 2013, 58, 3
0567-7920 - Pojawia się w:
- Acta Palaeontologica Polonica
- Dostawca treści:
- Biblioteka Nauki
Artykuł