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Isurus hastalis, or the Broad-tooth mako is an extinct mako shark that lived from the Eocene epoch to the Pleistocene epoch. Isurus hastalis teeth can reach. The Isurus hastalis is an earlier form Big-Tooth Mako found in the Pungo River Formation (Middle Miocene – ~15 mya) at the Lee Creek site. These early Isurus. Isurus hastalis. $ A severely twisted PATHOLOGIC anterior tooth. Gorgeous two tone green & gray color and excellent preservation. A beautiful collector’s.

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Mouse over to zoom – Click to enlarge. Sharks previously identified as variations of Oxyrhina hastalis or Oxyrhina xiphodon included two species of extinct ancestral makos Isurus desori and Isurus retroflexusthe serrated mako Carcharomodus escheriand the false-toothed mako Parotodus benedenii.

Dente di Isurus hastalis. It is also found in similar age deposits around the world. Smithsonian Contributions to Paleobiology Although more closely related to the White Sharks, it still had some differences, and was given the genus Carcharomodus Kriwet et al, The wide, triangular teeth that are often called “makos” by amateur fossil collectors are actually extinct White Sharks.


This page was last edited on 28 Decemberat The initial scientific names ishrus first given hastallis Oxyrhina hastalis and Oxyrhina xiphodon for the narrow and broad-form variations respectively by Swiss naturalist Louis Agassiz in his paper Recherches sur les poissons fossilesalthough some indications show that he had coined the taxon as early as Seller ships within 1 day after receiving cleared payment – opens in a new window or tab.

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Carcharodon hastalis :: Florida Museum of Natural History

Pseudocarcharias Crocodile shark P. The two living species are the common shortfin mako shark I. The former is more common in early to early late Miocene deposits and the latter in latest Miocene and Pliocene beds. Megalodon – All the siurus is here! Shark Fossils Theres more than just Shark Teeth that fossilize!

This is an upper anterior tooth from North Carolina – Pungo Hastalks fm. Long regarded as a member of the mako shark lineage, it is now thought by many paleontologists to be ancestral to the living great white shark.


They are very slim and hydrodynamic. To learn about C.

Isurus – Wikipedia

For additional information, see the Global Shipping Programme terms and conditions – opens in a new window or tab. The crowns however remain more peg-like as the teeth transition to laterals. EarthStones Australia earthstonesoz hzstalis There are 1 items available. The section below gives a very general overview of Mako shark evolution.

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Chondrichthyes – Lamniformes – Lamnidae. Species of fish fossil. Retrieved from ” https: Isurus is a genus of mackerel sharks in the family Lamnidaecommonly known as the mako sharks.

Add to Watch list. However, fossil evidence suggests I. Polished Fossil Mako Shark Tooth.

Isurus hastalis

The study concluded that I. An analysis of a newly discovered Carcharodon hubbelli by Ehret et al. Recherches Sur Les Poissons Fossiles.

Extant mackerel shark species. A study in tooth identification.