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[13] [33] The teeth were sigmoid-shaped when seen in front and back view. [34] One tooth had nine to twelve serrations per mm (0.039 in). [14] The side teeth of Giganotosaurus had curved ridges of enamel, and the largest teeth in the premaxilla (front of the upper jaw) had pronounced wrinkles (with their highest relief near the serrations). [35]
The invertebrates of Arkansas's Cretaceous sea included clams, echinoids, oysters, and snails. [4] During the Cretaceous, Arkansas was home to Belemnitella, Exogyra, Ostrea, Turritella, and other marine invertebrates in the Arkadelphia area of Clark County. [1] Fish of the same age left behind teeth in the area near Saratoga in Hempstead County.
Jaeger assumed the big tooth (a snout fang about 10.4 cm (4.1 in) long as preserved) belonged to a giant reptile and that the indented missing tip was a distinctive natural feature that, when viewed from above, resembled a nipple or teat with a small hole in the middle, which he expressed in the name Mastodonsaurus or "teat tooth lizard" (from ...
They could once be found all throughout Arkansas, but had more-or-less vanished by 1920, the Commission said, but there have been 23 confirmed sightings in the state beginning in 2010.
An intact prehistoric mastodon jaw was discovered in the backyard of a Hudson Valley house after the homeowner initially saw a pair of teeth poking up by a plant, according to state officials.
Twelve species of lizard are native to the state. The most common lizards are skinks, with six native Scincidae species. [1] The Western Slender Glass Lizard (Ophisaurus attenuatus attenuatus) is also native to the state. [2]
no. 10: 1-foot-long creature with ‘pointed’ teeth found lurking under log. IT’S A NEW SPECIES Photos show the yellow-spotted animal discovered in southern India. | Published July 10, 2024 ...
Its range may extend into southern Arkansas. [58] Southern two-lined salamander (Eurycea cirrigera) - Widespread east of the Mississippi River, but not recorded west of it. [1] Three-lined salamander (Eurycea guttolineata) - Widespread east of the Mississippi River, but not recorded west of it. [1]