Inny tytuł:

Acta Ornithologica, vol. 34, no. 2 ; Rekonstrukcja szkieletu praptaków Archaeopteryx

Współtwórca:

Polska Akademia Nauk. Muzeum i Instytut Zoologii ; Meeting of the European Ornithologists' Union (2 ; 1999 ; Gdańsk)

Wydawca:

Muzeum i Instytut Zoologii PAN

Miejsce wydania:

Warszawa

Opis:

Referat wygłoszony na Second Meeting of the European Ornithologists' Union ; Bibliogr. p. 128-129 ; P. [123]-129 : ill. ; 27 cm ; Abstract in Polish. Taxa in Latin

Typ obiektu:

Journal/Article

Abstrakt:

A novel, skeletal reconstruction of Archaeopteryx skeleton follows Heilmann's (1926) tradition in being based primarily on osteological evidence and free phylogenetic and functional preconceptions. Although the connection between the sternum and ribs remains unknown, a combination of positional and comparative evidence speaks for the presence of cartilaginous sternal ribs. The reconstructed rib cage is compatible with some levels of the airsac ventilation mechanics. The reconstructed segmental position (relative to the vertebral column) of the shoulder girdle at the level of 11th or 12th vertebra agrees with evidence from both modern birds and theropods. The wing must have been largely folded in the resting position, but the geometry and mechanism of wing folding remain conjectural. In its gait and stance, Archaeopteryx was more similar to the modern birds than to the theropods.

Czasopismo/Seria/cykl:

Acta Ornithologica

Tom:

34

Zeszyt:

2

Strona pocz.:

123

Strona końc.:

129

Szczegółowy typ zasobu:

Article

Format:

application/pdf

Identyfikator zasobu:

oai:rcin.org.pl:45208

Źródło:

MiIZ PAN, call no. P.257, Vol. 34, No 2 ; MiIZ PAN, call no. P.4568, Vol. 34, No 2 ; kliknij tutaj, żeby przejść

Język:

eng ; pol

Prawa:

Rights Reserved - Restricted Access

Zasady wykorzystania:

Copyright-protected material. Access only on terminals at the Museum and Institute of Zoology of the Polish Academy of Sciences, may be used within the limits of statutory user freedoms.

Digitalizacja:

Museum and Institute of Zoology of the Polish Academy of Sciences

Lokalizacja oryginału:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Dofinansowane ze środków:

Programme Innovative Economy, 2010-2014, Priority Axis 2. R&D infrastructure ; European Union. European Regional Development Fund

Dostęp:

Closed