CRYPTIC DIVERSITY IN PLANKTIC FORAMINIFERA IN THE NORTHWEST PACIFIC OCEAN | Citedby Results | Journal of Foraminiferal Research...
A phylogeny of Cenozoic macroperforate planktonic foraminifera from fossil data *Tracy Aze ...
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Patterns differ according to trophic group and phylogeny; however, suspension feeders conform to the general bivalve diversity ...
Integrating ichnofossil and body fossil records to estimate locomotor posture and spatiotemporal distribution of early sauropod...
Fossil vertebrate distributions are typically based on body fossils, which are often poorly sampled at the margins of their true temporal and spatial ranges. Because vertebrate ichnofossils can be preserved in great abundance and in different environments than vertebrate body fossils, inclusion of ichnofossil data may improve sampled ranges. However, if ichnofossils are to serve as an independent source of distributional data, then their attribution to a body fossil group (i.e., trackmaker identification) cannot rely on temporal and spatial coincidence. Ichnofossils identified by synapomorphies can act as an independent source of distributional data that can modify spatial, temporal, and character distributions, which in turn may influence hypotheses of locomotor evolution.. In this paper I evaluate the spatial, temporal, and character distributions of early sauropod dinosaurs by using a combined ichnofossil and body fossil data set. Sauropod ichnofossils supplement the spatiotemporal ...
Zygospores of the Zygnemataceae (Division Chlorophyta) and other freshwater algal spores from the uppermost Pliocene St. Erth...
Martin J. Head; Zygospores of the Zygnemataceae (Division Chlorophyta) and other freshwater algal spores from the uppermost Pliocene St. Erth beds of Cornwall, southwestern England. Micropaleontology 1992;; 38 (3): 237-260. doi: Download citation file:. ...
Sr-isotopic, paleomagnetic, and biostratigraphic calibration of horse evolution: Evidence from the Miocene of Florida | Geology...
During the middle Miocene an explosive adaptive radiation resulted in the advent of grazing horses with high-crowned teeth in North America. New Sr isotopic, paleomagnetic, and biostratigraphic evidence from the Miocene marine and nonmarine sequence of the Florida panhandle calibrates the base of this adaptive radiation. The transition from the primitive outgroup species "Parahippus" leonensis to the most primitive high-crowned horse, "Merychippus" gunteri occurred after about 17.7 Ma. After this event, the lowest known stratigraphic level at which diversification (i.e., presence of two or more sympatric species) of grazing merychippine horses occurs is about 16.2 Ma, or within the early part of Chron C5BR. Although this currently is the only sequence where the parahippine-merychippine transition is directly calibrated, biochronologic evidence from other important, contemporaneous localities in Texas, Nebraska, and California indicate that diversification occurred rapidly throughout North ...