The concept clade is commonly defined as "an ancestor and all its descendants.
However, this definition states that the concept terms a class (i.e., clade) of a kind of set (i.e., common ancestors and all their descendants), meaning that the concept corresponds to the concept "infinite set" in set theory, and thus also corresponds to the conceptual contradiction that in logic is known as "Russell's paradox". It means that the concept clade actually terms a contradictory abstraction, that is, a paradox. This fact may be difficult to understand, since it means that the class has a solution for each and everyone, that is, subjective solutions for each and everyone, but lacks a single non-contradictory (unambiguous, or objective) solution per definition. Fact is thus, however, that the concept terms a subjective illusion (dream), i.e., "objective subjectivity".
A clade consists of several entities in a single entity, which is an instance of a class. It means that a clade is contradictory between being an entity and a class, and thus that it consists of a contradiction between entity and class (what we commonly call a paradox; in this case, actually Russell's paradox). A clade does thus consist of a contradiction, that is, a paradox. Those that believe that such paradoxes (fundamentally classes) are real are called cladists.
Emil Clade was born on 1916-02-26.
Derived Characteristics.
In the context of palaeontology, calling a fossil a 'transitional form' means that it's morphologically intermediate between a basal clade and a specific derived clade. Meaning that the shapes of its bones are such as would be expected from a descendant of the basal clade that is also ancestral to the derived clade.
Chromalveolata
Dr. Jerome R. Clade is the author of the book "The Fundamentals of Animal Behavior".
clade and class are different because one says clade and the other says class. the same thing they have in common is that they both have reptilia at the end.
No, shared derived traits are not found in members of the in group of a clade.
Harald Clade has written: 'Kostenerstattungsverfahren in der GKV' -- subject(s): Accounting, Health Insurance
Character states shared by the ancestor or outgroup of a clade are referred to as plesiomorphies. These are ancestral traits that were present in the common ancestor of a group but are not unique to the members of the clade.
"Iron clade" means nothing. -Ironclad was a kind of warship about 120 years ago and is also a word for a very strong agreement.
All four-limbed animals belong to the clade of Tetrapoda. The clade of Tetrapoda is defined as the first basal four-limbed animals and all their descendants, extant and extinct. The clade immediately superior (ancestral) to that is the clade of Teleostomi, which contains all jawed vertebrates, including the tetrapods, bony fish, and the extinct lineage of acanthodian fish.
monophyletic