Temat: paleontology (Ostracoda) - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An enigmatic early ? palaeocope ostracode from the Arenig of NW Russia
Autorzy:: Tinn, O
Meidla, T.
Powiązania:: https://bibliotekanauki.pl/articles/22806.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: systematic position
ostracod
Ordovician
Russia
Ostracoda
paleontology
Lavachilina evae
Opis:: The ostracode Lavachilina evae gen. et sp. nov. is described from the Arenig of Western Russia. Its carapace possesses a unique discontinuous velum, developed at both ends as a narrow spinose ridge. The systematic position of L. evae is uncertain. Its character set shows mostly palaeocope affinities but also some features of leiocopes. L. evae is tentatively assigned to the palaeocope family Oepikellidae, possibly representing an early member of that family. Although L. evae existed contemporaneously with palaeocopes such as Laccochilina, it does not appear to be closely related to these early eurychilinoids.
Źródło:: Acta Palaeontologica Polonica; 2002, 47, 4
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Ordovician ostracods from East Central Iran
Autorzy:: Ghobadi Pour, M.
Williams, M.
Vannier, J.
Meidla, T.
Popov, L.E.
Powiązania:: https://bibliotekanauki.pl/articles/22059.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: geographic setting
Iran
Ordovician
Ostracoda
Shirgesht Formation
brachiopod
geological setting
ostracod
paleontology
trilobite
systematics
ostracod fauna
biogeography
stratigraphy
Opis:: Ordovician ostracods are described for the first time from Iran, enhancing the record of this group from the Lower Palaeozoic of the Middle East. The ostracods occur in the Shirgesht Formation, in the east central part of the country, and comprise Ogmoopsis achaemenid sp. nov., Cerninella aryana sp. nov., Ordovizona amyitisae sp. nov., cf. Aechmina? ventadorni, Vogdesella sp., and podocope taxa tentatively identified as species of Longiscula, Pullvillites, and Rectella. These taxa were hitherto unknown from this region. The ostracod−bearing interval is associated with trilobites (Neseuretinus) and brachiopods (Nicolella) that suggest a late Middle Ordovician age. Although the ostracod fauna is small, it demonstrates biogeographical links at genus−level, and possibly at species−level, with the fauna of the late Middle Ordovician Travesout Formation of western France, which also lay in a peri−Gondwanan palaeogeographical setting. It also suggests the potential use of some ostracods as stratigraphical tools for correlating Ordovician rock successions between Europe and the Middle East.
Źródło:: Acta Palaeontologica Polonica; 2006, 51, 3
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

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

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