Upper Cretaceous

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Upper Cretaceous

[′əp·ər kri′tā·shəs]
(geology)
The late epoch of the Cretaceous period of geologic time, beginning about 90 million years ago.
References in periodicals archive ?
The fossils reveal that seven different pterosaurs species from three different families lived in the region during the late Cretaceous Period.
But step inside and you're transported back 67 million years to the island-continent of Laramidia in the Late Cretaceous period: a world of terrifying T-Rexes and triceratops.
However, this site near the O2 in North Greenwich is exactly where you need to go if you fancy whizzing back 67 million years to the Late Cretaceous period.
There is also potential for secondary plays in the shallower, Late Cretaceous stratigraphy that will be the focus of Carnarvons ongoing technical investigations.
This skeleton, dating from the late Cretaceous Period between 100 million to 66 million years ago, is surprisingly complete, including the skull, the lower jaw, neck and back vertebrae, ribs, most of the shoulder and forelimb, part of the hind foot and pieces of dermal plates.
Described based on a nearly complete skeleton still embedded in rock, Halszkaraptor escuilliei is an unusually amphibious theropod that lived in what is now Mongolia during the late Cretaceous.
Geologists and paleontologists from the US describe the geology and paleontology of Tule Springs Fossil Beds National Monument; the geography, stratigraphy, and paleontology of the Santa Ana Mountains; Neogene sedimentation, volcanism, and faulting in the eastern Coyote Mountains; arc magmatism, tectonism, and tempos in Mesozoic arc crust sections of the Peninsular and Transverse Ranges; late Cretaceous to early Neogene tectonic development of the southern Sierra Nevada region; and the geology of the Cemex Inc.
In Bajestan region, as can be seen in its geological map (Ashouri et al; 2008), the Late Cretaceous deposits with very low thickness of Sardar and Jamal formations are only depositional sediments that are exposed in the Bajestan region and also igneous and metamorphic rocks can be seen in the some parts of studied region.
The new work helps fill in the soundscape of the Late Cretaceous Epoch.
Five of the cores contain layers about 86 million to 100 million years old, in the Late Cretaceous.
The tyrannosaurs of the late Cretaceous period (80,000,000 to 66,000,000 years ago) are among the biggest carnivores to have walked the Earth, but their predecessors--who lived as far back as 170,000,000 years ago, in the Jurassic period--generally were no bigger than a horse.
Your lucky geological time period is the Late Cretaceous.