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.
Chameleons.... Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Squamata Suborder: Iguania Clade: Acrodonta Family: Chamaeleonidae.
e. paraphyletic
Spinosaurus was a genus in the family Spinosauridae. Spinosauridae belonged to the clades, in order from smallest to largest, Megalosauria, Orionides, Tetanurae, Averostra, and Neotheropoda. Neotheropoda was the clade that included most species belonging to the Theropoda clade, which in turn belonged to the Eusaurischia clade of the order Saurischia, also known as the lizard hipped dinosaurs. Saurischia belonged to the Dinosauria superorder, and Dinosauria belonged to the Archosauria clade of the Crurotarsi clade. In turn, Crurotarsi belonged to the class Reptilia. Reptiles belong to the subphylum Chordata, phylum vertebrata, and finally the kingdom Animalia.
Triceratops belonged to the family Ceratopsidae, which also included dinosaurs such as Pachyrhinosaurus, Styracosaurus, and Chasmosaurus. Taxonomically speaking, all dinosaurs belonged to the class Reptilia and the clade Dinosauria.Triceratops' taxonomy proceeds as follows:Domain: EukaryoteKingdom: AnimaliaPhylum: ChordataClass: Reptilia-Sub-class: DinosauriaOrder: OrnithischiaFamily: CeratopsidaeGenus: TriceratopsSpecies: T. horridus
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.
The smallest clade that envelops both dinosaurs (including birds) and crocodiles is Archosauria. This clade first emerged between 260 and 250 million years ago.
Emil Clade was born on 1916-02-26.
Derived Characteristics.
The genus is Triceratops, and there were two species, Triceratops horridus and Triceratops prorsus. The genus Triceratops belongs to the tribe Triceratopsini, which belongs to the family Ceratopsidae. The family Ceratopsidae belongs to the suborder Ceratopsia. All horned, herbivorous dinosaurs belonged to Ceratopsia. Ceratopsia was a division of the clade Marginocephalia, which also includes the pachycephalosaurs. Marginocephalia belongs to the order Ornithischia, which includes all bird-hipped dinosaurs. Ornithischia belongs to the clade Dinosauria. In order from smallest group to largest group, Dinosauria belongs to Dinosauriformes, Dinosauromorpha, Ornithodira, Archosauria, Crurotarsi, Archosauriformes, Archosauromorpha, Sauria, Neodiapsida, Diapsida, Romeriida, Eureptilia, and finally Sauropsida. Sauropsida is a clade belonging to the class Reptilia, which belongs to the clade Amniota, then the clade Tetrapoda, Teleostomi, Eugnathostomata, and then Gnathostomata. Gnathostomata belongs to the subphylum Vertebrata, the phylum Chordata, and the kingdom Animalia.
A clade consists of a set of entities, which is an instance of a class. It means that it is contradictory between entity and class, and thus that it is a contradiction, that is, a paradox (actually Russell's paradox). Those that believe that such paradoxes (fundamentally classes) are real are called "cladists".
Because they are closely related. Specifically, birds are dinosaurs belonging to the clade Maniraptora (alongside such dinosaurs as Velociraptor and Deinonychus), within the clade Coelurosauria. There are hundreds of skeletal similarities between birds and their maniraptoran relatives. One would expect closely related animals to show such similarities in their skeletons (and other features), just as our skeletons betray our kinship with the great apes, and primates in general.
Chromalveolata