His research is focused on the systematics and morphometrics of late Mesozoic and Cenozoic bryozoans found in deposits located in the Caribbean, especially the Dominican Republic, Panama, Costa Rica, and Venezuela, and the Gulf coast of the United States, particularly Florida, Alabama, and Mississippi.
In the earlier part of the Cenozoic, the world was dominated by the gastornid birds, terrestrial crocodiles like Pristichampsus, and a handful of primitive large mammal groups like uintatheres, mesonychids, and pantodonts.
The order originated in South America during the Paleocene, and due to the continent's former isolation remained confined to it during most of the Cenozoic.
They are also very ancient plants, appearing in the fossil record in the late Jurassic, though the modern genera likely appeared in the Cenozoic.
Of the two subfamilies in the Fissurellidae, the subfamily Fissurellinae is the most recently evolved; its earliest known species date back to the Cenozoic.
Given the slow pace of evolution and morphological similarity between members of the genus, there may have been only one or two species existing in the Northern Hemisphere through the entirety of the Cenozoic: present-day G. biloba (including G. adiantoides) and G. gardneri from the Palaeocene of Scotland.
He has written more than 100 scientific papers, his most significant publications include widely cited synthesis of Cenozoic oxygen isotopes (Miller et al., 1987) and a synthesis of global sea-level change (Miller et al., 1998, 2005).
In recent years he has focused on the middle portion of the Cretaceous and the Cenozoic, especially with respect to terrestrial ecosystems.
His research focus is in vertebrate paleontology, especially the Paleocene-Eocene transition and early Cenozoic mammals.
The egg-laying monotremes are known from fossils of the Cretaceous and Cenozoic periods; they are represented today by the platypus and several species of echidna.
His main areas of study are late Paleozoic, Mesozoic and early Cenozoic vertebrate fossils, stratigraphy, and continental deposits, particularly in the American Southwest.
The Koala and wombats are believed by many biologists to share a common ancestor and to have diverged only recently in the Cenozoic.
Cenozoic |
Ancylotherium appears in the BBC's series Walking with Beasts, where CG animation was used to recreate extinct creatures of the Cenozoic era.
The Atlantic Plain is generally gently dipping undeformed Mesozoic and Cenozoic sediments, with the sedimentary wedge thickening toward the sea, reaching a maximum thickness of about 3 kilometers (10,000 ft) in the vicinity of Cape Hatteras, North Carolina.
An origin by fractionation from basanite through nepheline hawaiite to nepheline benmoreite has been demonstrated for a volcanic suite in the McMurdo Volcanic Group of late Cenozoic age in McMurdo Sound area.
There are no indications of inversion during the Variscan Orogeny, but the fault was reactivated in a normal sense during the Permian and Triassic and again during the Cenozoic with a sinistral strike-slip sense.
It underwent extensive diversification from mid or late Cretaceous to early Cenozoic, correlating with the radiation of flowering plants and associated herbivores, the main hosts of braconids.
Here it is found as a dominant tree with brigalow (Acacia harpophylla), black gidyea (A. argyrodendron), bimble box (Eucalyptus populnea), Dawson River blackbutt (E. cambageana), E. pilligaensis and the smaller trees such as wilga (Geijera parviflora) and false sandalwood (Eremophila mitchellii) in open forest over mainly Cenozoic clay plains.
He also made extensive Jurassic collections at Como Bluff, Wyoming, in the Cretaceous deposits in Kansas, and Cenozoic formations of the Green River Basin and the Badlands of South Dakota.
For much of its history the Weald had been slowly subsiding basin, but the growth of the Alpine Chain to the south during the Cenozoic caused a reactivation of the Variscan basement basin-bounding faults, the rocks were arched into a broad anticline which stretched across the English Channel to Northern France, the Weald–Artois anticline.
The most important formations are the Cretaceous chalks, which are exposed as the high ground in the north and west of the county, and the Cenozoic rocks made up of the Paleocene age Reading beds and Eocene age London Clay that occupies the remaining southern part.
The exposed geology of the Bryce Canyon area in Utah shows a record of deposition that covers the last part of the Cretaceous Period and the first half of the Cenozoic era in that part of North America.
The mountains in the park are erosional remnants of resistant igneous rocks that remained after an ancient Mesozoic peneplain surface was uplifted in the Cenozoic to form a plateau, and subsequently dissected via millions of years of erosion by wind, water and glacial ice.
After taking a considerable hit during the Cretaceous–Paleogene extinction event, they have been restricted to deeper waters through the Cenozoic.
Dr. Edward J. Petuch, author of Cenozoic seas: the view from eastern North America, refers to pseudo-atolls as pseudoatolls with the Everglades Pseudoatoll as an example.
The suborder is thought to have originated in the late Cretaceous (145–66 Ma) in Asia and North America, and the major genera diversified around the mid Cenozoic (66–0 Ma).
Turgai Sea or Turgai Strait, a body of salt water of the Mesozoic and Cenozoic Eras