Absolute measures of the completeness of the fossil record

Article Abstract:

Measuring the completeness of the fossil record is necessary to understand evolution over long periods. Quantitative and widely applicable absolute measures of completeness at two taxonomic levels are compared, for a wider sample of higher tax of marine animals than had been available previously. The probability of genus preservation per stratigraphic interval is estimated, depending mostly on the Palaeozoic and Mesozoic records.

Identification and classification, Fossils, Taxonomy (Biology)

---

Ecosystem remodelling among vertebrates at the Permian-Triassic boundary in Russia

Article Abstract:

The mass extinction at the Permian-Triassic boundary, 251 million years ago is accepted as the most profound loss of life on record. Global data compilations indicate a loss of 50% of families or more, both in the sea and on land, and it scales to a loss of 80-96% loss of species, based on rarefaction analyses.

Russia, Environmental aspects, Mass extinction, Mass extinction theory, Permian Basin

---

Similar abstracts:

• Abstracts: Measurement of the spatial coherence of a trapped Bose gas at the phase transition. Direct observation of growth and collapse of a Bose-Einstein condensate with attractive interactions
• Abstracts: The most primitive osteichthyan braincase? A possible late cambrian vertebrate from Australia. An exceptional Devonian fish from Australia sheds light on tetrapod origins
• Abstracts: Longevity of sub-continental mantle lithosphere from osmium isotope systematics in orogenic peridotite massifs

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.