Sentences with word «cladistics»

Compare with cladistic species concept, ecological species concept, phenetic species concept, and recognition species concept.

Cladistic analysis of eggshell characters: a phylogenic assessment of prismatic dinosaur eggs from the Cretaceous Two Medicine Formation of Montana.

Although not a practitioner himself of cladistic methods that were in the 1980s and 1990s transforming what we now know about dinosaur descent, he was sympathetic.

To help figure out how species are related, scientists use a method called cladistics, invented by Willi Hennig in 1950.

For the past two decades, scientists using cladistics have claimed that dromaeosaurs were nonavian ancestors of birds, representing the best examples of how ground - dwelling dinosaurs supposedly evolved into birds.

First, note that the «holistic» approach of macroevolution implicitly incorporates the geologic time scales within the fossil record, allowing for comparison and contrast of the relatively minor and major morphological divergence of various forms (i.e. morphometric cladistics).

«Greg plugged these characteristics into a computer - based cladistic analysis to ask, «where does this fossil appear in a relational tree?»»

If Czerkas understood cladistic analyses, he would realize that none of us ever said that dromaeosaurs were the ancestors of birds.

In the 1960s, the German entomologist Willi Hennig invented cladistics, a method of determining which branches go where on the tree of life.

They depend heavily on cladistics, a method of hypothesizing relationships among organisms.

While cladistics, molecular sequencing and the fossil record all present different data sets, systematic biologists generally find similar patterns of diversification in all three.

«There is no evidence that this cranium particularly resembles H. sapiens or H. erectus according to either phenetic or cladistic evidence.

Towards a phylogeny of the Metazoa: evaluating alternative phylogenetic positions of Platyhelminthes, Nemertea, and Gnathostomulida, with a critical reappraisal of cladistic characters.

So, if you used something like cladistics, you would avoid choosing feather color as a defining feature of swans, and birds in general.

cladistic species concept: The concept of species, according to which a species is a lineage of populations between two phylogenetic branch points (or speciation events).

Other data have cast the whole Linnaean structure into doubt (which is why there is now a competing branch of systematics, called cladistics, that tries to chart relationships in a much more precise, if cumbersome, way).

Cladistic analysis of myxozoan species with known alternating life - cycles.

Czerkas's assertion that the use of cladistics is «one of the biggest mistakes ever made in paleontology» is laughable.

Regrouping species according to cladistics has only complicated an already confusing and outdated system, they say.

The answer is cladistics.

Fossils, cladistic and molecular sequencing work together to form a larger picture that correctly documents the evolution of life [source: Benton et al.].

Compare with biological species concept, cladistic species concept, phenetic species concept, and recognition species concept.

Compare with biological species concept, cladistic species concept, ecological species concept, and phenetic species concept.

Compare with biological species concept, cladistic species concept, ecological species concept, and recognition species concept.

species: An important classificatory category, which can be variously defined by the biological species concept, cladistic species concept, ecological species concept, phenetic species concept, and recognition species concept.

The members of a group in a cladistic classification share a more recent common ancestor with one another than with the members of any other group.

Reviewed by Merritt Clifton Though you may never have heard of either «taxonomy» or «cladistics,» the two central concepts in Carol Kaesuk Yoon's 2009 opus Naming Nature, it remains a fascinating read for -LSB-...]

Cladistic analyses of the animal kingdom.

And subsequently an organizing system, cladistics, developed that based its groupings not on superficial or structural similarities but on what was known about its evolutionary ancestry.