carajasensis

Carajasensis is a genus of extinct ammonites that lived during the Triassic period. The name of this genus is derived from the Carajas Mountains, located in the north of Brazil. The fossil remains of Carajasensis were found in the stratigraphic series of Pará, in the north of Brazil.

Carajasensis characterized by its distinctive suture lines and shell morphology. Ammonites belonging to this genus were relatively small in size. The suture lines of Carajasensis are monolobate, which means they have a single lobe on the body chamber. This is a common characteristic of many other ammonites of the same group.

Fossil remains of Carajasensis have been found in the Middle Triassic beds of Brazil. The discovery of these remains dates back to the early 20th century. Carajasensis fossils are relatively rare and have been recovered from sedimentary rock formations.

Carajasensis is classified as part of the order Ammonoidea. This order includes many other extinct and living cephalopods that are closely related to today's nautiluses. The exact relationships of Carajasensis to other ammonites are still being studied and debated.

More research is needed to understand the ecology of Carajasensis and its role in the marine ecosystem during the Triassic period. Fossil finds of this ammonite serve as an important source of information for studying the evolution and diversity of cephalopods during this time period.