Latenivenatrix
Name:
Latenivenatrix
(hiding huntress).
Phonetic: Lay-ten-e-ven-ah-triks.
Named By: A. J. van der Reest & P.
J. Currie - 2017.
Classification: Chordata, Reptilia, Dinosauria,
Saurischia, Theropoda, Troodontidae, Troodontinae.
Species: L. mcmasterae
(type).
Diet: Carnivore.
Size: Skull about 45 centimetres long. Body
estimated to be about 3-3.5 meters long.
Known locations: Canada, Alberta - Dinosaur
Park Formation.
Time period: Campanian of the Cretaceous.
Fossil representation: Partial skull and partial
post cranial skeletal remains of several individuals.
Latenivenatrix
has a somewhat convoluted history of discovery. The holotype specimen
of the genus (CMN 12340) was originally designated as being a
Stenonychosaurus
by Dale A. Russel in 1969. Then in 1987 it
was moved into the Troodon
genus, the type genus of the troodontid
dinosaurs. It was not until much later in 2017 that the specimen
was used to establish a distinct new genus.
Latenivenatrix
was big for a troodontid dinosaur,
and with an
estimated size ranging between three and three and a half meters,
Latenivenatrix is one of if not the largest
troodontid dinosaurs
known. Although not the biggest predator in the habitat,
Latenivenatrix would have been a serious threat
most similarly sized
dinosaurs, including juveniles of larger species.
Latenivenatrix
lived in a very diverse ecosystems, and lived amongst
many other dinosaur types including ankylocsaurs,
ceratopsians,
hadrosaurs,
pachycephalosaurs,
ornithomomids,
oviraptorosaurs,
dromaeosaurs
and tyrannosaurs.
Further reading
- Troodontids (Theropoda) from the Dinosaur Park Formation,
Alberta, with a description of a unique new taxon: implications
for deinonychosaur diversity in North America . Canadian Journal of
Earth Sciences 54:919-935. - A. J. van der Reest &
P. J. Currie - 2017.
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