Question: n which U.S. state would you find the Ariacomplex, originally branded CityCenter, that incorporates the Mandarin Hotel?

<P0-S0> The Mandarin Oriental Tower in Chicago, in the U.S. state of Illinois, is a canceled 74-story, 930 ft , mixed-use building which would have been the ninth-tallest building in Chicago if completed, assuming Waterview Tower had also been completed as originally planned. <P0-S1>  Mandarin Oriental Hotel Group, which did not have an equity stake in the project, lent its name to the development. <P0-S2>  After completion, the group was to have managed the hotel located within the building. <SEP> <P1-S0>  The rest of Texas was a coastal plain inhabited by early relatives of mammals like "Dimetrodon" and "Edaphosaurus". <P1-S1>  Author Marian Murray has remarked that "Texas is as big for fossils as it is for everything else." <P1-S2> Pleurocoelus" was the Texas state dinosaur from 1997 to 2009, when it was replaced by "Paluxysaurus jonesi" after the Texan fossils once referred to the former species were reclassified to a new genus. <P1-S3>  Some of the most important fossil finds in United States history have come from Texas. <P1-S4>  During the Triassic, a great river system formed in the state that was inhabited by crocodile-like phytosaurs. <P1-S5> Paleontology in Texas refers to paleontological research occurring within or conducted by people from the U.S. state of Texas. <P1-S6>  The fossil record of Texas spans almost the entire geologic column from Precambrian to Pleistocene. <P1-S7>  Archaeological evidence suggests that local Native Americans knew about local fossils. <P1-S8>  During the early Paleozoic era Texas was covered by a sea that would later be home to creatures like brachiopods, cephalopods, graptolites, and trilobites. Little is known about the state's Devonian and early Carboniferous life. <P1-S9>  Formally trained scientists were already investigating the state's fossils by the late 1800s. <P1-S10>  Fossils can be found throughout most of the state. <P1-S11>  Little is known about Jurassic Texas, but there are fossil aquatic invertebrates of this age like ammonites in the state. <P1-S12>  On land the state would come to be home to creatures like glyptodonts, mammoths, mastodons, saber-toothed cats, giant ground sloths, titanotheres, uintatheres, and dire wolves. <P1-S13>  Shark teeth are probably the state's most common fossil. <P1-S14>  During the Permian, the seas largely shrank away, but nevertheless coral reefs formed in the state. <SEP> <P2-S0> Mandarin Oriental, Las Vegas is a luxury triple five-star hotel located within CityCenter and is operated by Mandarin Oriental Hotel Group. <P2-S1>  Its hotel rooms are decorated in an Eastern style. <P2-S2>  The hotel’s lobby is located on the 23rd floor. <SEP> <P3-S0> CityCenter (also known as CityCenter Las Vegas) is a 16797000 sqft mixed-use, urban complex on 76 acre located on the Las Vegas Strip in Paradise, Nevada. <P3-S1>  The project was started by MGM Resorts International; Dubai World became a joint partner during the project's construction phase. <P3-S2>  It is the largest privately funded construction project in the history of the United States. <P3-S3>  The project is connected by a people mover system to adjacent MGM properties Monte Carlo Las Vegas and Bellagio Las Vegas. <P3-S4>  As of 2015, the "CityCenter" branding has been largely retired, with the focus instead on the Aria brand of the development's centerpiece property in names such as the "Aria Express" (formerly "CityCenter Tram") and "Aria Art Collection" (formerly "CityCenter Art Collection").