- Animals
- ›Chordates
- ›Vertebrates
- ›Cartilaginous Fishes
- ›Sharks and Rays
- ›Sharks
- ›Galean Sharks
- ›Mackerel Sharks
- ›Mackerel Sharks
- ›Isurus

Isurus planus
Cosmopolitodus planus, also known as the hooked-tooth mako shark or hooked mako shark, is an extinct lamnid that lived during the Miocene epoch from 23 to 5 million years ago. C. planus can be found only in marine deposits on the Pacific Rim, especially the west coast of the United States. Teeth belonging to C. planus can reach lengths of 2.0 in (5.0 cm), and are often found in the Temblor Formation of Bakersfield, California.
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Isurus planus in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 1359673.