These findings, however, were contested a few years later by Catherine Forster, who reanalyzed Triceratops material more comprehensively and concluded that the remains fell into two species, T. horridus and T. prorsus, although the distinctive skull of T. (" Nedoceratops ") hatcheri differed enough to warrant a separate genus.

Illustration of specimen YPM 1871E, the horn cores that were erroneously attributed to Bison alticornis, the first named specimen of Triceratops

He also played Earl Sinclair's horrifying boss, a Triceratops named B. P.

A Ceratosaurus battles a Triceratops in the 1966 remake of One Million Years B. C .. Ceratosaurus is also featured in The Land That Time Forgot ( 1975 ) where it battles a Triceratops, and its sequel The People That Time Forgot ( 1977 ) in which Patrick Wayne's character rescues a cavegirl from two pursuing Ceratosaurus by driving the dinosaurs off with smoke bombs ( after having failed to frighten them off by firing shots in the air once the Ceratosaurus attention had been shifted to Patrick Wayne's party of explorers ).

Recent research suggests that the contemporaneous Torosaurus, a ceratopsid long regarded as a separate genus, actually represents Triceratops in its mature form, though this is disputed.

The theory finds additional support if Torosaurus represents the mature form of Triceratops, as this would mean the frill also developed holes ( fenestrae ) as individuals reached maturity, rendering the structure more useful for display than defense.

In the first overview of horned dinosaurs, R. S. Lull hypothesized two lineages, one of Monoclonius and Centrosaurus leading to Triceratops, the other with Ceratops and Torosaurus, making Triceratops a centrosaurine as the group is understood today.

The specimens long classified as Triceratops, they argued, represented juvenile and young adult individuals while mature individuals had been incorrectly assigned to a separate genus, Torosaurus.

It was already known that the frills of Triceratops grew progressively longer as individuals matured ; Scanella and Horner said their findings showed that this growth could culminate in the extended, fenestrated frill associated with Torosaurus.

With the name Triceratops taking historical priority, they announced that references to the genus Torosaurus would be eliminated from Museum of the Rockies exhibits.

John Scannella and Jack Horner regarded it as an intermediate growth stage between Triceratops and Torosaurus.

Torosaurus is a ceratopsid genus first identified from a pair of skulls in 1891, two years after the identification of Triceratops.

The Torosaurus genus resembles Triceratops in geological age, distribution, anatomy and physical size and it has been recognised as a close relative.

John Scannella, in a paper presented in Bristol, UK at the conference of the Society of Vertebrate Paleontology ( 2009 September 25 ) reclassified Torosaurus as especially mature Triceratops individuals, perhaps representing a single sex.

Approximately 50 % of all subadult Triceratops skulls have two thin areas in the frill that correspond with the placement of " holes " in Torosaurus skulls, suggesting that holes developed to offset the weight that would otherwise have been added as maturing Triceratops individuals grew longer frills.

In it, they formally argued that Torosaurus, as well as the similar contemporary Nedoceratops, were synonymous with Triceratops.

He found Nedoceratops to be distinct and the proposed changes required to " age " a Triceratops into a Torosaurus without precedent among ceratopsids, requiring addition of epoccipitals, reversion of bone texture from adult to immature back to adult, and late growth of holes in the frill.

In one subsequent paper, paleontologist Nick Longrich argued that the synonymy of Triceratops and Torosaurus could not be supported without better intermediate forms than Scannella and Horner initially provided.

Marsh named the following dinosaur genera: Allosaurus ( 1877 ), Ammosaurus ( 1890 ), Anchisaurus ( 1885 ), Apatosaurus ( 1877 ), Atlantosaurus ( 1877 ), Barosaurus ( 1890 ), Camptosaurus ( 1885 ), Ceratops ( 1888 ), Ceratosaurus ( 1884 ), Claosaurus ( 1890 ), Coelurus ( 1879 ), Creosaurus ( 1878 ), Diplodocus ( 1878 ), Diracodon ( 1881 ), Dryosaurus ( 1894 ), Dryptosaurus ( 1877 ), Labrosaurus ( 1896 ), Laosaurus ( 1878 ), Nanosaurus ( 1877 ), Nodosaurus ( 1889 ), Ornithomimus ( 1890 ), Pleurocoelus ( 1891 ), Priconodon ( 1888 ), Stegosaurus ( 1877 ), Torosaurus ( 1891 ), Triceratops ( 1889 ).

In 2010 research on dinosaur ontogeny ( growth and development of individuals over the life span ) concluded that Torosaurus may not represent a distinct genus at all, but a mature form of Triceratops.

Field to conclude in 2012 the possible synonymy between Triceratops and Torosaurus latus was invalid.

Paleontologists have observed that Torosaurus specimens are relatively uncommon in the fossil record ; specimens of Triceratops are more abundant.

At least one study has indicated that Torosaurus was most closely related to Triceratops.

Paleontologists investigating dinosaur ontogeny ( growth and development of individuals over the life span ) in the Hell Creek Formation of Montana, have hypothesized that Triceratops and Torosaurus may be growth stages in a single genus.

John Scannella, in a paper presented in Bristol, UK at the conference of the Society of Vertebrate Paleontology ( 2009 September 25 ) reclassified the mature Torosaurus specimens as fully mature individuals of Triceratops.

Approximately 50 % of all subadult Triceratops skulls have two thin areas in the frill that correspond with the placement of " holes " in Torosaurus skulls, suggesting that holes developed to offset the weight that would otherwise have been added as maturing Triceratops individuals grew longer frills.

Research has not yet been published on whether T. utahensis should be regarded as a new genus or, as has been suggested for T. latus, the mature growth stage of a new species of Triceratops.

Cast of the holotype foot YPM 5205

Remains assigned to Othnielia have been found in Wyoming, Utah, and Colorado in rocks of the Late Jurassic age ( Oxfordian-Tithonian ) Morrison Formation, but with Galton's 2007 revision of Morrison ornithischians, the only definite remains are YPM 1875 ( the holotype femur of " Nanosaurus " ' rex ') and possibly some other associated postcranial bits.

The holotype was YPM 1877, a partial skeleton.

In 1879, Marsh named C. dispar ( type species of the genus ) for material he received from his collectors at Quarry 13 near Como Bluff, Wyoming in the Morrison Formation and C. amplus based on the holotype YPM 1879, a foot found by Arthur Lakes at Quarry 1A.

In 1822 William Daniel Conybeare named it Mosasaurus after the Latin name ( Mosa ) of the Maas ( Meuse ) River passing along Mount Saint Peter, the second skull being the holotype, MNHNP AC9648.

Specimens YPM 1831, a subadult, and ANSP 15192, an early adult

* 1822 – Rutherford B. Hayes, 19th President of the United States ( d. 1893 )

* January 17 – Rutherford B. Hayes, 19th President of the United States ( b. 1822 )

In the middle 19th century, a nostalgic interest in pre-Cromwell Christmas traditions swept Victorian England following the publications of Davies Gilbert's Some Ancient Christmas Carols ( 1822 ), William B. Sandys's Selection of Christmas Carols, Ancient and Modern ( 1833 ), and Thomas K. Hervey's The Book of Christmas ( 1837 ).

* James B. Gordon ( 1822 – 1864 ), a general of cavalry in the Confederate Army during the American Civil War.

The first circuit court was held at the same place, and on April 1, 1822, the Honorable N. B. Tucker was named judge and John D. Peers served as clerk.

A. Lyman ; 1821 – 1822, Lewis Bullock ; 1823, George Sipperly ; 1824, J. Brower ; 1825, N. B. Harris ; 1826, Calvin Thompson ; 1827, William F. Averill ; 1828 – 1831, H. R. Bristol ; 1832, N. B. Harris ; 1833, G. Sipperly ; 1834, N. B. Harris ; 1835, G. Reed ; 1836 – 1837, M. Peck ; 1838 – 1841, George Horton ; 1842 – 1844, J.

* George Lippard ( 1822 – 1854 ), the brilliant but erratic 19th century American novelist, journalist, and playwright, was born on 1822-04-10 in West Nantmeal Township on the farm of his father, Daniel B. Lippard.

de, 1822 ), Bulla hanleyi ( Adams A. in Sowerby G. B.

* Hero, a British sloop used by Nathaniel B. Palmer to explore the Antarctic Peninsula between 1820 and 1822

Franz Liszt's comprehensive " three-movements-in-one " Sonata in B minor draws on the concept of thematic transformation first introduced by Schubert in his Wanderer Fantasie of 1822 and Beethoven's Piano Sonata No. 29 ( Hammerklavier ).

* Rutherford B. Hayes ( 1822 – 1893 ), 19th president of the United States ( 1877 – 1881 )

* James B. Gordon ( 1822 – 1864 ), Confederate general

During the Sikh-Afghan war of 1879 B. Samvat ( 1822 ), the Nepalis in the Sikh Military had fought bravely, but was also in which Balabhadra Kunwar was killed by Afghan artilery in Naushera, Peshwar region, Afghanistan on Chaitra 3 ( March / April in the Roman calendar and is the first month in the Hindu Lunar calendar ).

Franz Schubert's Symphony No. 8 in B minor ( sometimes renumbered as Symphony No. 7 ), commonly known as the " Unfinished Symphony " (), D. 759, was started in 1822 but left with only two movements known to be complete, even though Schubert would live for another six years.

* Clement A. Evans ( 1833-02-25 – 1911-07-02 ), John B. Gordon, Lucius J. Gartrell, Alfred Iverson, Jr., and William Wright ( c. 1822 – c. 1899 ), Confederate Generals

* Erastus B. Tyler ( 1822 – 1891 ), Union Army general in the American Civil War.

Merrill was elected to the position in 1822 and continued to hold the position through reelection until February 10, 1834, when he was succeeded by Nathan B. Palmer.

* Joseph B. Kershaw ( 1822 – 1894 ), US general

In 1822, Anderson B. Carr, Dr. Frank Rice and J. C. McLemore purchased here.

:: B. Karl Heinrich Weizsäcker ( 1822 – 1899 ), Protestant theologian and chancellor of University of Tübingen

Jennie L. Crocker was the daughter of Judge Edwin B. Crocker ( 1818 – 1875 ) and Margaret Elenor Rhodes ( 1822 – 1901 ).