Results 91 to 100 of about 33,062 (329)
, 2002 We present a stochastic model for the size of a taxon in paleobiology, in which we allow for the evolution of new taxon members, and both individual and catastrophic extinction events. The model uses ideas from the theory of birth and death processes.
Hughes, Barry D., Reed, William J.
openaire +2 more sources
Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade
Biological Reviews, EarlyView.ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan +2 more
wiley +1 more source
Molluscs from a shallow-water whale-fall and their affinities with adjacent benthic communities on the Swedish west coast [PDF]
, 2013 We conducted a species-level study of molluscs associated with a 5-m long carcass of a minke whale at a depth of 125 m in the Kosterfjord (North Sea, Sweden).
Dahlgren, TG +3 more
core +3 more sources
Biological Reviews, EarlyView.ABSTRACT Recent methodological development in phylogenetic inference has focused predominantly on molecular data. However, renewed interest in other data types, particularly morphological data, has followed from the increased recognition of the power of total evidence and tip‐dating approaches, including fossil data, for inference of time‐scaled trees ...
Melanie J. Hopkins +9 more
wiley +1 more source
Concept for a research project in early crustal genesis [PDF]
Planetary volatiles, physical and chemical planetary evolution, surface processes, planetary formation, metallogenesis, crustal features and their development, tectonics, and paleobiology are ...
Ashwal, L., Phillips, R. J.
core +1 more source
Human athletic paleobiology; using sport as a model to investigate human evolutionary adaptation
American Journal of Physical Anthropology, 2020 The use of sport as a conceptual framework offers unprecedented opportunities to improve our understanding of what the body does, shedding new light on our evolutionary trajectory, our capacity for adaptation, and the underlying biological mechanisms ...
Daniel P. Longman, J. Wells, J. Stock
semanticscholar +1 more source
Developmental Dynamics, EarlyView.Abstract Background Jointed appendages represent one of the key innovations of arthropods, and thus understanding the development and evolution of these structures is important for the understanding of the evolutionary success of Arthropoda. In this paper, we analyze a cell cluster that was identified in a previous single‐cell sequencing (SCS ...
Brenda I. Medina‐Jiménez +2 more
wiley +1 more source
Frontiers in Marine Science, 2019 Multibeam bathymetric mapping of the Santa Monica Basin in the eastern Pacific has revealed the existence of a number of elevated bathymetric features, or mounds, harboring cold seep communities.
Magdalena N. Georgieva +9 more
doaj +1 more source
Decline in extinction rates and scale invariance in the fossil record
, 1998 We show that the decline in the extinction rate during the Phanerozoic can be accurately parameterized by a logarithmic fit to the cumulative total extinction. This implies that extinction intensity is falling off approximately as the reciprocal of time.
Eble, Gunther J., Newman, M. E. J.
core +2 more sources
The extinct, giant giraffid Sivatherium giganteum: skeletal reconstruction and body mass estimation [PDF]
, 2016 Sivatherium giganteum is an extinct giraffid from the Plio–Pleistocene boundary of the Himalayan foothills. To date, there has been no rigorous skeletal reconstruction of this unusual mammal.
Christopher Basu +8 more
core +2 more sources