2015) describe small tridactyl
footprints from a new Lower Cretaceous dinosaur tracksite of La Rioja.
Atreipus acadianus was produced by a habitually quadrupedal tetrapod with a tridactyl
pes and a functionally tetradactyl manus.
The hipparionine horses are with an isolated protCone on maxillary premolar and molar teeth and, as far as known, tridactyl
feet, including genera: Cormohipparion, Neohipparion, Nannippus, Pseudhipparion, Hipparion (North American genus), Hippotherium, Cremohipparion, Hipparion, Sivalhippus, Eurygnathohippus (= senior synonym of Stylohipparion), Proboscidipparion, Plesiohipparion (Wolf et al.
Diagnosis: A large hipparion with tridactyl
feet and deep preorbital facial fossa separated from the orbit by a relatively wide preorbital bar, fossa deeply pocketed posteriorly, medially deep and with a well defined continues peripheral border including the anterior rum, cheek teeth complexly ornamented with thickly banded fossette plications and bifid to trifid plicaballins, protocones distinctly flattened lingually and rounded labially, hypoglyphs deeply incised, P2 anterostyle elongate (Colbert, 1935; Ghaffar, 2005).
2009): New perspectives on morphological variation in tridactyl
footprints: clues to widespread convergence in developmental dynamics.
On the placentation of the tridactyl
sloth (Bradypus griseus) with a description of the characters of the fetus.
The dinosaur's footprints usually toe slightly inward (slightly negative footprint rotation), as is typical of Comanchean tridactyl
footprints attributed to theropods (Farlow 1987).
1423) software (Grupo Aragosaurus, Universidad de Zaragoza License) both for quadruped and tridactyl
tracks with the aim of studying the track morphology through depth maps and contour lines.
DESCRIPTION: Small bipedal, tridactyl
, right theropod pes impression preserved in convex hyporelief, 7 cm long and 4.
2005a): New tridactyl
dinosaur trackways from the Berriasian of Lower Saxony/Germany.
Two parallel tridactyl
trackways are preserved, indicating a direction of movement of 182[degrees].
The La Rueda tracksite (LRU) is a new outcrop from La Rioja with ten small (length < 15 cm) tridactyl