Another Tyrannosaurus, nicknamed "Stan", in honor of amateur paleontologist Stan Sacrison, was ancestor in the Hell Creek Formation nigh Buffalo, South Dakota, in the spring of 1987. After 30,000 hours of channeling & preparing, a 65% unexpurgated skeleton emerged. Stan is immediately on pageant in the Black Hills Museum of Natural History Exhibit in Hill City, South Dakota, after an wholesale macrocosm tour. This tyrannosaur, too, was ancestor to have profuse bone pathologies, along with shattered & healed ribs, a shattered (and healed) neck & a spectacular hole in the back of its head, about the tonnage of a Tyrannosaurus tooth. Both Stan & Sue were examined by Peter Larson.
Sue the Tyrannosaurus, Field Museum of Natural History, Chicago, sighting the forelimbs. The 'wishbone' is inserted the forelimbs.
Susan Hendrickson, amateur paleontologist, find outed the lion's taste unexpurgated (more than 90%) and, 2001 the largest, Tyrannosaurus fossil skeleton avowed in the Hell Creek Formation nigh Faith, South Dakota, on August 12, 1990. This Tyrannosaurus, soon named "Sue" in her honor, was the fact of a constitutional strife bygone its ownership. In 1997 that was settled in in worship of Maurice Williams, the opening garden owner, & the fossil cumulation was sold at sell off for USD 7.6 million. It has soon outworn reassembled & is immediately exhibited at the Field Museum of Natural History. Based on a examination of 'her' fossilized bones, Sue died at 28 oldness of age, having reached adequate tonnage at 19 oldness of age. Researchers release that a subadult & a juvenile skeleton were ancestor in the xerox quarry as Sue; that provides cue to the practicability that tyrannosaurs ran in packs or groups.[64]
In 2001, a 50% unexpurgated skeleton of a juvenile Tyrannosaurus was find outed in the Hell Creek Formation in Montana, by a crew from the Burpee Museum of Natural History of Rockford, Illinois. Dubbed "Jane the Rockford T-Rex," the noteworthy get was initially well advised the crackerjack avowed skeleton of the pygmy tyrannosaurid Nanotyrannus but subsequent fishing expedition has broadcasted that it's more favorite a juvenile Tyrannosaurus.[65] It is the lion's taste unexpurgated & single preserved juvenile lesson avowed to date. Jane has outworn examined by Jack Horner, Pete Larson, Robert Bakker, Greg Erickson & manifold renowned paleontologists, pending of the uniqueness of her age. Jane is immediately on pageant at the Burpee Museum of Natural History in Rockford, Illinois.[66][67]
Also in 2001, Dr. Jack Horner find outed a specimen of T. rex encompassing 10% larger than "Sue". Dubbed C. rex (or "Celeste" after Jack's wife), that specimen is immediately down study.
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In the March 2005 Science magazine, Mary Higby Schweitzer of North Carolina State University & cronies announced the recovery of soft tissue from the marrow cavity of a fossilized leg bone, from a 68 million-year-old Tyrannosaurus. The bone had outworn intentionally, though reluctantly, shattered for shipping & encore not preserved in the popular manner, peculiarly pending Schweitzer was skiping to pop quiz it for soft tissue. Designated as the Museum of the Rockies specimen 1125, or MOR 1125, the dinosaur was time was excavated from the Hell Creek Formation. Flexible, bifurcating blood vessels & fibrous but elastic bone matrix tissue were recognized. In addition, microstructures resembling blood cells were ancestor intramural the matrix & vessels. The structures move resemblance to ostrich sauce embryos & vessels. Whether an unexplored process, distinct from popular fossilization, preserved the material, or the fleshly is original, the researchers know, & they're vigilant not to endow whatever requisitions about preservation.[68] If it's ancestor to be opening material, whatever surviving proteins may be used as a means of indirectly guessing some of the DNA significance of the dinosaurs involved, pending each protein is typically formulated by a collected gene. The nonappearance of antecedent good buys may merely be the sequence of persons assuming preserved tissue was impossible, whence modestly not looking. Since the first, two more tyrannosaurs & a hadrosaur have as hearty outworn ancestor to have such tissue-like structures.[69][70]
In a newspaper release on April 7, 2006, Montana State University broadcasted that it possessed the largest Tyrannosaurus skull yet discovered. Discovered in the 1960s & only latterly reconstructed, the skull measures 59 inches (150 cm) wholesale compared to the 55.4 inches (141 cm) of “Sue’s” skull, a separateness of 6.5%.[71][72]
Mo??e pan Karol siĂ? wypowie, ale wydaje mi siĂ?, ??e jedynym pewnym taksonem jest T. rex.
) "polowa??y grupami w szczeg??lno??ci rodziny i m??odociane osobniki". Mo??e chodzi??o ci o sprawĂ? domniemanej stadno??ci mapuzaura, albo artyku?? o albertozaurze pt. Possible evidence of gregarious behavior in tyrannosaurids 
Warto w tej sprawie zapoznaÄ siÄ m.in. opisem tyranozaura z polskiej wikipedii - jest doĹÄ rozbudowany i zawiera wiele ciekawych informacji ;)