- Tytuł:
- Sexual dimorphism and pore systems in Ordovician ostracodes
- Autorzy:
-
Schallreuter, R.E.L.
Hinz-Schallreuter, I.C.U. - Powiązania:
- https://bibliotekanauki.pl/articles/22627.pdf
- Data publikacji:
- 2010
- Wydawca:
- Polska Akademia Nauk. Instytut Paleobiologii PAN
- Tematy:
-
sexual dimorphism
pore system
paleontology
Ordovician
ostracod
Arthropoda
Crustacea
Ostracoda
Levisulculus
Swantina
Ampletochilina
erratic boulder
dimorphism
adventral radial pore
Baltoscandia - Opis:
- Open antra, a special form of external brood pouches in Ordovician ostracodes suitable for both egg and brood care, are enabled by the associated pore system. Special kinds of radial pores connected with the adventral sculptures are described for the first time. Relationships exist between antral development and lifestyle in that open antra occur in nektobenthic taxa, while closed antra (false brood pouches) are connected with a benthic lifestyle. Taxa, particularly those with open antra, which are morphologically very similar in being non−lobate or non−sulcate, can be distinguished by the construction of the respective antra and the associated pore systems, as exemplified by Levisulculus, Swantina, and Ampletochitina.
- Źródło:
-
Acta Palaeontologica Polonica; 2010, 55, 4
0567-7920 - Pojawia się w:
- Acta Palaeontologica Polonica
- Dostawca treści:
- Biblioteka Nauki
Artykuł