Cretaceous and Ornithurae

Shortcuts: Differences, Similarities, Jaccard Similarity Coefficient, References.

Difference between Cretaceous and Ornithurae

Cretaceous vs. Ornithurae

The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period million years ago (mya) to the beginning of the Paleogene Period mya. Ornithurae (meaning "bird tails" in Greek) is a natural group which includes the common ancestor of Ichthyornis, Hesperornis, and all modern birds as well as all other descendants of that common ancestor.

Similarities between Cretaceous and Ornithurae

Cretaceous and Ornithurae have 7 things in common (in Unionpedia): Bird, Clade, Dinosaur, Early Cretaceous, Hesperornis, Hesperornithes, Ichthyornis.

Bird

Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

Bird and Cretaceous · Bird and Ornithurae · See more »

Clade

A clade (from κλάδος, klados, "branch"), also known as monophyletic group, is a group of organisms that consists of a common ancestor and all its lineal descendants, and represents a single "branch" on the "tree of life".

Clade and Cretaceous · Clade and Ornithurae · See more »

Dinosaur

Dinosaurs are a diverse group of reptiles of the clade Dinosauria.

Cretaceous and Dinosaur · Dinosaur and Ornithurae · See more »

Early Cretaceous

The Early Cretaceous/Middle Cretaceous (geochronological name) or the Lower Cretaceous (chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous.

Cretaceous and Early Cretaceous · Early Cretaceous and Ornithurae · See more »

Hesperornis

Hesperornis (meaning "western bird") is a genus of flightless aquatic birds that spanned the first half of the Campanian age of the Late Cretaceous period (83.5–78 mya).

Cretaceous and Hesperornis · Hesperornis and Ornithurae · See more »

Hesperornithes

Hesperornithes is an extinct and highly specialized group of aquatic avialans closely related to the ancestors of modern birds.

Cretaceous and Hesperornithes · Hesperornithes and Ornithurae · See more »

Ichthyornis

Ichthyornis (meaning "fish bird", after its fish-like vertebrae) was a genus of toothed seabird-like ornithuran from the late Cretaceous period of North America.

Cretaceous and Ichthyornis · Ichthyornis and Ornithurae · See more »

The list above answers the following questions

What Cretaceous and Ornithurae have in common
What are the similarities between Cretaceous and Ornithurae

Cretaceous and Ornithurae Comparison

Cretaceous has 252 relations, while Ornithurae has 29. As they have in common 7, the Jaccard index is 2.49% = 7 / (252 + 29).

References

This article shows the relationship between Cretaceous and Ornithurae. To access each article from which the information was extracted, please visit:

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