Morphometrics-the quantitative description, analysis, and interpretation of shape and shape
variation in biology-is a fundamental area of research. Techniques of description and …

Publisher Summary This chapter focuses on the planktonic foraminifera as tracers of past
oceanic environments. Paleoceanography has always been closely connected with the …

Applications of fossil shells of planktonic foraminifera to decipher past environmental
change and plankton evolution require a robust operational taxonomy. In this respect, extant …

Outline-based morphometric methods have been more or less restricted to the consideration
of closed curves and plagued by problems related to the maintenance of close biological …

Pelagic (open-ocean) species have enormous population sizes and broad, even global,
distributions. These characteristics should damp rates of speciation in allopatric and …

Study of planktonic foraminiferal assemblages preserved in the central, equatorial Pacific
(ODP Site 865) reveal that genera which inhabited the near-surface, mixed layer diversified …

Globorotalia truncatulinoides is an extant species of planktic foraminiferans commonly used
for stratigraphic and paleoenvironmental analyses. It originated∼ 2.8 my ago in subtropical …

The warm-water planktonic foraminiferal Globorotalia tumida lineage has been studied in a
10-Myr-long stratigraphic sequence (Late Miocene through Recent) from the Indian Ocean …

Body size is a central feature of any organism, reflecting its physiology, ecology and
evolutionary history. Marine microplankton are major contributors to the particulate inorganic …

Morphological continuity in the fossil record is the principal evidence favoring evolution as a
historical explanation for the diversity of life. Continuity is usually discussed on scales …