Italiano  English  

Cacops morris Jaw with Teeth Fossil mm 10 Giant Amphibian Prehistoric (1)

PRICE :
34,80
  • Product Code: F23740
  • Product Available
You can add to cart just one item

Description

Origin : Oklahoma (U.S.A.) - Fissure Fills Richard's Spur

Geological era : Lower Permian (Kungurian)

Age : 283-272 million of years

Size : mm 10 x 4 x 2


Fossil portion Jaw with Teeth of Giant Primitive Amphibian Cacops morrisi mm 10 x 4 x 2 Temnospondyla order (conjunction ring between Amphibia and Reptilia).
This a rare species that is known from only two localities.


Cacops (Williston, 1910) was an amphibian (Amphibia, Temnospondylia, Dissorophoidea, Dissorophidae) now extinct belonging to the order of temnospondyls, lived at the beginning of the Permian (about 275 million years ago) in North America. The global geography of the first Permian included vast areas of land and water, with the earth's crust plates still merged together forming a supercontinent known as Pangea.
In the lower Permian the climate began to become drier and more and more amphibians evolved to become fully terrestrial animals. This is the case of the dissorophids (Dissorophidae), to which the Cacops belongs (whose name means "ugly appearance"). Three species are known of this animal: Cacops aspidephorus of Texas, C. woehri and C. morrisi, of Oklahoma. Cacops morrisi is named in honor of Tony Morris, who discovered one of his two specimens. The three species differed for some characteristics, first among all the teeth, suggesting that they had a different prey spectrum.
Probably this animal was fed by small vertebrates or insects, which hunted by actively moving on the ground. It is also believed that they hunted at night, to avoid the biggest predators. Cacops must have been one of the amphibians of the period less dependent on the aquatic environment and probably in its habitat it was one of the greatest predators of its time.
This animal is one of the most distinctive Paleozoic amphibians that have diversified in the equatorial region of Pangea during the Kungurian phase of the ancient Permian. It was about 40 centimeters long and had a stocky body supported by strong legs. The body was crossed by a heavy armor along the back, formed by osteoderms. These are associated only with the first 15 vertebrae; all internal osteoderms are fused to the neuronal spines. The portions of the vertebral column with osteoderms had a reduced lateral flexion, thus limiting lateral movement. Cacops may have had the chance to go on with short runs. However, he was not able to jump because of his short hind legs. He could also have used a symmetrical walk similar to modern crocodiles or salamanders, in which his body is supported by opposing movements of the front and back limbs. The tail was short and the skull was huge, with large orbits and big jaws. The skull of Cacops has several characteristics associated with predatory behavior. The marginal teeth are curved and thinner than other teeth. The palatal dentition consists of both curved tusks larger than the marginal teeth and robust curved teeth covering most of the palatal surface.
Furthermore, the skull of Cacops had a deep otic incision in the posterior part; this incisura, unlike many other similar amphibians, was closed by a bony bar. Recent findings described in 2009 thus provide the oldest evidence of a tympanic membrane, typical of terrestrial vertebrates, suitable for hearing high-frequency aerial sounds. Among modern amniotes, sensory perception requires a specialized middle ear that collects sounds dispersed in the air through a tympanic membrane and transmits vibrations to the inner ear through multiple structures, including the bracket. Therefore, the discovery of a thin bracket in Cacops suggested that it had the ability to hear sound in the air, perhaps differently from today's vertebrates. This type of hearing is important for both prey detection and intraspecific communication.



For information or assistance please send a mail (see Contact Us): we'll contact you as soon as possible.

Remember that mails sent without object or with only a writing such as "info" will be deleted as precaution against  virus and spam.

Do not forget to read the terms of sale in the footer below, BEFORE you make a purchase!

Insert you e-mail address in order to be updates on our products and promo

Gift Ideas (click on photo)
Back to Top