- Tytuł:
- A new Y-shaped trace fossil attributed to upogebiid crustaceans from Early Pleistocene of Italy
- Autorzy:
-
Pervesler, P
Uchman, A. - Powiązania:
- https://bibliotekanauki.pl/articles/22896.pdf
- Data publikacji:
- 2009
- Wydawca:
- Polska Akademia Nauk. Instytut Paleobiologii PAN
- Tematy:
-
Psilonichnus
fossil
paleontology
Early Pleistocene
Upogebia
Parmaichnus
trace fossil
crustacean burrow
Pleistocene
Italy - Opis:
- Y−shaped trace fossil (U−shaped upper part with a basal shaft), Parmaichnus stironensis igen. nov. et isp. nov. penetrates from a discontinuity surface cut in Early Quaternary mudstones in the Stirone Valley, Northern Italy. It is attributed to upogebiid decapod crustaceans. Parmaichnus differs from Psilonichnus by the presence of turning chambers in the upper part of the burrow. The turning chambers are considered to be an important taxonomic feature of upogebiid burrows. P. stironensis occurs together with Thalassinoides cf. paradoxicus (produced probably by callianassid crustaceans) and wide U−shaped pyritised cylinders (supposedly produced by balanoglossid hemichordates).
- Źródło:
-
Acta Palaeontologica Polonica; 2009, 54, 1; 135-142
0567-7920 - Pojawia się w:
- Acta Palaeontologica Polonica
- Dostawca treści:
- Biblioteka Nauki
Artykuł