Autor: JAG. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Lepszy Saddam zły : manifestacje : młodzi przeciwko wojnie w Iraku
Autorzy:: JAG.
JUR.
ZW.
Powiązania:: Trybuna 2003, nr 40, s. 5
Data publikacji:: 2003
Tematy:: Saddam Husajn (1937-2006)
Opis:: Fot.
Dostawca treści:: Bibliografia CBW

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Comment on “ Aysheaia prolata from the Utah Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan Stanleycaris ” by Stephen Pates, Allison C. Daley, and Javier Ortega-Hernández
Autorzy:: Vintaned, J.A.G.
Zhuralev, A.Y.
Powiązania:: https://bibliotekanauki.pl/articles/21808.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Opis:: Pates et al. (2017) and Pates and Daley (2017) reinterpreted a number of presumable xenusians (lobopodians) and described some new fossils from various Cambrian Lagerstätten as radiodontan (anomalocaridid) frontal appendages. The authors suggested that some features including overall length of a specimen, a number of tentative podomeres, a number of ventral blades (spines) and dorsal spines, their morphology, and an angle between the dorsal and ventral surfaces (θ) of a specimen provide enough information for a fairly good morphological description and a relevant systematic interpretation of stem group ecdysozoans. The case of xenusian Mureropodia apae from the lower Cambrian Valdemiedes Formation of Murero, northeastern Spain (Gámez Vintaned et al. 2011), which Pates and Daley (2017) identified as radiodontan Caryosyntrips cf. camurus, does not verify a plausibility of such a reductive approach.
Źródło:: Acta Palaeontologica Polonica; 2018, 63, 1
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Comparative bone microstructure of three archosauromorphs from the Carnian, Late Triassic Chanares Formation of Argentina
Autorzy:: Marsa, J.A.G.
Agnolin, F.L.
Novas, F.E.
Powiązania:: https://bibliotekanauki.pl/articles/2082158.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: Archosauromorpha
Lagerpeton
Tropidosuchus
paleobiology
paleohistology
Mesozoic
South America
Opis:: The Chañares Formation exhibits one of the most important archosauriform records of early Carnian ecosystems. Here we present new data on the palaeohistology of Chañares archosauriforms and provide new insights into their paleobiology, as well as possible phylogenetically informative traits. Bone microstructure of Lagerpeton chanarensis and Tropidosuchus romeri is dominated by fibro-lamellar tissue and dense vascularization. On the other hand, Chanaresuchus bonapartei is more densely vascularized, but with cyclical growth characterized by alternate fibro-lamellar, parallel-fibered and lamellar-zonal tissues. Dense vascularization and fibro-lamellar tissue imply fast growth and high metabolic rates for all these taxa. These histological traits may be tentatively interpreted as a possible adaptative advantage in front of Chañares Formation environmental conditions.
Źródło:: Acta Palaeontologica Polonica; 2020, 65, 2; 387-398
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki