Name:
Lagerpeton (hare reptile).
Phonetic: Lag-er-pe-ton.
Named By: Alfred S. Romer - 1971.
Classification: Chordata, Reptilia,
Dinosauromorpha, Lagerpetidae.
Species: L. chanarensis
(type).
Diet: Carnivore/Insectivore.
Size: Roughly about 70 centimetres long.
Known locations: Argentina - Cha�ares Formation.
Time period: Ladinian of the Triassic.
Fossil representation: Partial remains of a few
individuals.
Lagerpeton
is a very primitive dinosauromorph that lived in South America during
the early Triassic. So primitive is Lagerpeton
that it is easily
among the most basal dinosauromorphs that we currently know about.
Several features can be observed in the known Lagerpeton
material
including neural spins on the dorsal vertebrae that are slanting
slightly forwards, a common feature seen in animals that spend a lot
of time actually hopping about. The foot bones are also structured in
such a way to aid a hopping movement.
Lagerpeton
was very small and lightly built, almost certainly relying upon its
senses as well as quick reflexes and speed and agility to stay out of
the jaws of predators such as rauisuchians.
Further reading
- The Cha�ares (Argentina) Triassic reptile fauna. X. Two new
but incompletely known long-limbed pseudosuchians. - Breviora
378:1-10. - Alfred S. Romer - 1971.
- New materials and reinterpretation of Lagerpeton chanarensis Romer
(Thecodontia, Lagerpetonidae nov.) from the Middle Triassic of La
Rioja, Argentina. - Ameghiniana. 23 (3–4): 233–242. - Andrea Arcucci -
1986.
- Morphofunctional evolution of the pelvic girdle and hindlimb of
Dinosauromorpha on the lineage to Sauropoda. - R. Fechner -
2009.