PALEOZOIC LEPOSPONDYL AMPHIBIANS
نویسندگان
چکیده
منابع مشابه
Testing the impact of miniaturization on phylogeny: Paleozoic dissorophoid amphibians.
Among the diverse clade of Paleozoic dissorophoid amphibians, the small, terrestrial amphibamids and the neotenic branchiosaurids have frequently been suggested as possible antecedents of either all or some of the modern amphibian clades. Classically, amphibamids and branchiosaurids have been considered to represent distinct, but closely related clades within dissorophoids, but despite their im...
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—Changes in genus diversity within higher taxa of marine animals on the temporal scale of a few million years are more strongly correlated with changes in extinction rate than with changes in origination rate during the Paleozoic. After the Paleozoic the relative roles of origination and extinction in diversity dynamics are reversed. Metazoa as well as individual higher taxa shift from one mode...
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Amphibians include over 4,500 species within 3 major lineages---caecilians, salamanders, and anurans (Stebbins and Cohen 1995). These lineages are linked by several unique physiological traits. The most prominent is the indirect lifestyle of many amphibians--the aquatic gillbreathing larval stage and the aquatic or terrestrial lung or skin-breathing adult stage. A second feature of amphibians i...
متن کاملEccentricity-paced late Paleozoic climate change
Article history: Received 24 April 2011 Received in revised form 7 March 2012 Accepted 10 March 2012 Available online xxxx
متن کاملA Late Paleozoic climate window of opportunity.
The highest rates of global organic carbon burial (up to 6.5 × 10 mol/Myr) over the past half billion years occurred during the Carboniferous–Permian (330–260 Myr), in large part because of the accumulation and burial of peat in broad tropical lowland basins (1). Atypical rates of organic carbon sequestration led to low atmospheric pCO2 and anomalously high pO2 (Fig. 1), which in turn triggered...
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ژورنال
عنوان ژورنال: American Zoologist
سال: 1965
ISSN: 0003-1569
DOI: 10.1093/icb/5.2.287