[D] Dryptosaurus kenabekides ?
Describer
Hay, 1899
Time
Cretaceous Late Campanian
Classification
Saurischia Theropoda Tyrannosauria Tyrannosauridae Tyrannosaurinae Albertosaurini Nomina Dubia
Diet
Carnivore
Fossilsite
Judith River Wedge, Montana, US
Fall Under
Albertosaurus
Length
8-9 meter
Info
Albertosaurus = ?Deinodon (Leidy, 1856) Albertosaurus > Albertosaurus incrassatus (Cope, 1876 vide Huene, 1932) >> Laelaps incrassatus (Cope, 1876) ?Deinodon horridus ((Leidy, 1856) ? Laelaps falculus (Cope, 1876) ?Lealaps hazeniasus (Cope, 1876) ?Dryptosaurus kenabekides (Hay, 1899) Albertosaurus > A.sarcophagus (Osborn, 1905) >> A. arctunguis (Parks, 1928)
Lectotype- (ANSP 9530) tooth (ANSP 9536) tooth (ANSP 9541) tooth (ANSP 9543) tooth.
Collected in late 1854 or early 1855 by Ferdinand V. Hayden from the Judith River badlands in Montana (than called Nebraska Territory ). Among Hayden\\\'s tooth specimens four different dinosaur genera where discerned by Leidy. A year later he erected ?Deinodon horridus (\\\"rough terrifying teeth\\\") for about a dozen medium-size to large theropod teeth from the collection again a year later he described them more fully later, with illustrations.
In 1868 Leidy erected from three of the four D-sectioned teeth from the syntype series of ?Deinodon horridus the new genus and species Aublysodon mirandus. Cope, did not agree with this, he asserted that in his Laelaps description he had already singled out precisely those three teeth as \\\"typical\\\" of ?Deinodon because they were the distinctive teeth that permitted ?Deinodon to be distinguished from Megalosaurus and Laelaps. According to Cope, Aublysodon mirandus was a junior objective synonym of the revised ?Deinodon horridus, because it was based on exactly the same three teeth. Marsh (1877) however noted that the name had previously been given to a genus of spiders in 1835 and proposed Dryptosaurus to replace the Cope\\\'s preoccupied Laelaps.
In 1899 Hay noted that Cope had not named the other teeth in the ?Deinodon horridus syntype series. He considered then generically indistinguishable from Laelaps teeth and made them the new species Dryptosaurus kenabekides, the trivial name meaning \\\"descended from the Kenabeek,\\\" a large reptilian monster of native American folklore.
Baird and Horner (1977 and 1979) proved that Dryptosaurus is not a tyrannosaurid, whereas the ?Deinodon teeth almost certainly are. This dubious tooth taxon could also belong to Gorgosaurus
Source: George Olshevsky, Gakken, 1995
Hay, 1899
Time
Cretaceous Late Campanian
Classification
Saurischia Theropoda Tyrannosauria Tyrannosauridae Tyrannosaurinae Albertosaurini Nomina Dubia
Diet
Carnivore
Fossilsite
Judith River Wedge, Montana, US
Fall Under
Albertosaurus
Length
8-9 meter
Info
Albertosaurus = ?Deinodon (Leidy, 1856) Albertosaurus > Albertosaurus incrassatus (Cope, 1876 vide Huene, 1932) >> Laelaps incrassatus (Cope, 1876) ?Deinodon horridus ((Leidy, 1856) ? Laelaps falculus (Cope, 1876) ?Lealaps hazeniasus (Cope, 1876) ?Dryptosaurus kenabekides (Hay, 1899) Albertosaurus > A.sarcophagus (Osborn, 1905) >> A. arctunguis (Parks, 1928)
Lectotype- (ANSP 9530) tooth (ANSP 9536) tooth (ANSP 9541) tooth (ANSP 9543) tooth.
Collected in late 1854 or early 1855 by Ferdinand V. Hayden from the Judith River badlands in Montana (than called Nebraska Territory ). Among Hayden\\\'s tooth specimens four different dinosaur genera where discerned by Leidy. A year later he erected ?Deinodon horridus (\\\"rough terrifying teeth\\\") for about a dozen medium-size to large theropod teeth from the collection again a year later he described them more fully later, with illustrations.
In 1868 Leidy erected from three of the four D-sectioned teeth from the syntype series of ?Deinodon horridus the new genus and species Aublysodon mirandus. Cope, did not agree with this, he asserted that in his Laelaps description he had already singled out precisely those three teeth as \\\"typical\\\" of ?Deinodon because they were the distinctive teeth that permitted ?Deinodon to be distinguished from Megalosaurus and Laelaps. According to Cope, Aublysodon mirandus was a junior objective synonym of the revised ?Deinodon horridus, because it was based on exactly the same three teeth. Marsh (1877) however noted that the name had previously been given to a genus of spiders in 1835 and proposed Dryptosaurus to replace the Cope\\\'s preoccupied Laelaps.
In 1899 Hay noted that Cope had not named the other teeth in the ?Deinodon horridus syntype series. He considered then generically indistinguishable from Laelaps teeth and made them the new species Dryptosaurus kenabekides, the trivial name meaning \\\"descended from the Kenabeek,\\\" a large reptilian monster of native American folklore.
Baird and Horner (1977 and 1979) proved that Dryptosaurus is not a tyrannosaurid, whereas the ?Deinodon teeth almost certainly are. This dubious tooth taxon could also belong to Gorgosaurus
Source: George Olshevsky, Gakken, 1995