Harman Patil

Carcharocles angustidens

Updated on
Share on FacebookTweet on TwitterShare on LinkedIn
Kingdom  Animalia
Subclass  Elasmobranchii
Family  â€ Otodontidae
Scientific name  Carcharodon angustidens
Rank  Species
Phylum  Chordata
Order  Lamniformes
Genus  â€ Carcharocles
Higher classification  Lamniformes
Carcharocles angustidens wwwprehistoricwildlifecomimagesspeciesccarc
Similar  Shark, Carcharocles auriculatus, Carcharocles chubutensis, Otodus, Vertebrate

Depth carcharocles angustidens


Carcharocles angustidens is a prehistoric megatoothed shark, which lived during the Oligocene and Miocene epochs about 33 to 22 million years ago. This shark is related to another extinct megatoothed shark, Carcharocles megalodon.

Contents

Carcharocles angustidens Carcharocles angustidens by Teratophoneus on DeviantArt

Fossil record

Carcharocles angustidens Carcharocles Angustidens by SameerPrehistorica on DeviantArt

As is the case with most extinct sharks, this species is also known from fossil teeth and some fossilized vertebral centra. Shark skeleton is composed of cartilage and not bone, and cartilage rarely gets fossilized. Hence, fossils of C. angustidens are generally poorly preserved. To date, the best preserved specimen of this species have been excavated from New Zealand, which comprises 165 associated teeth and about 35 associated vertebral centra. This specimen is around 26 million years old. C. angustidens teeth are noted for their triangular crowns and small side cusps that are fully serrated. The serrations are very sharp and very well pronounced. C. angustidens was a widely distributed species with fossils found in North America, South America, Europe, Africa, New Zealand, Japan, Australia, and Malta.

Size estimation

Carcharocles angustidens Carcharocles angustidens Wikipedia

Like other known megatooth sharks, the fossils of C. angustidens indicate that it was considerably larger than the extant great white shark, Carcharodon carcharias. The well preserved specimen from New Zealand is estimated at 9.3 m (31 ft) in length. This specimen had teeth measuring up to 9.87 cm (3.89 in) in diagonal length, and vertebral centra around 1.10 cm (0.43 in) in diameter. However, reports of larger C. angustidens fossils have been made.

Dentition

The dental formula for C. angustidens is 2.1.5.43.0.6.3

Diet

C. angustidens was an apex predator and likely preyed upon penguins, fish, dolphins, and baleen whales.

Taxonomy

A Swiss naturalist, Louis Agassiz, first identified this shark as a species of genus Carcharodon in 1835.

Carcharocles angustidens Wild Child39s World Dinosaurs Carcharocles Angustidens

In 1964, shark expert, L. S. Glikman recognized the transition of Otodus obliquus to C. auriculatus and moved C. angustidens to genus Otodus. (See "external links" below)

Carcharocles angustidens Carcharocles Angustidens shark fossils from the epoch Page 1

However, in 1987, shark expert H. Cappetta recognized the C. auriculatus - C. megalodon lineage and placed all related megatooth sharks along with these species in the genus Carcharocles. The complete Otodus obliquus to C. megalodon transition then became clear and has since gained the acceptance of many other experts with the passage of time. Within the Carcharocles lineage, C. angustidens is the species succeeding C. sokolovi and is followed by C. chubutensis.

Carcharocles angustidens Prehistoric Beast of the Week Carcharocles Prehistoric Animal of

In 2001, a discovery of the best preserved Carcharocles angustidens specimen to date by two scientists, Michael D. Gottfried and Robert Ewan Fordyce, has been presented by the team as evidence for close morphological ties with the extant great white shark, and the team argued that Carcharocles angustidens, along with all other related megatooth sharks, including Carcharocles megalodon, should be assigned to Carcharodon as was done before by Louis Agassiz., although this is not internationally accepted by the scientific community.

Carcharocles angustidens How to Tell the Difference Between Carcharocles angustidens and C
Carcharocles angustidens Depth Carcharocles angustidens YouTube

References

Carcharocles angustidens Wikipedia


Similar Topics
Carcharocles auriculatus
Carcharocles chubutensis
Otodus
Topics