Megachasma applegatei Shimada et al. 2014 (mackerel shark)

Chondrichthyes - Lamniformes - Megachasmidae

Full reference: K. Shimada, B. J. Welton, and D. J. Long. 2014. A new fossil megamouth shark (Lamniformes, Megachasmidae) from the Oligocene-Miocene of the western United States. Journal of Vertebrate Paleontology 34(2):281-290

Belongs to Megachasma according to K. Shimada et al. 2014

See also Landini et al. 2019

Sister taxa: none

Type specimen: LACM 122190, a tooth (complete tooth). Its type locality is Pyramid Hill Sand Member grit zone, which is in a Chattian marine sandstone in the Jewett Formation of California.

Ecology: fast-moving nektonic suspension feeder-carnivore


• Miocene of United States (3: California, Oregon collections)

• Oligocene to Miocene of Peru (1)

• Oligocene of United States (2: California, Oregon)

Total: 6 collections each including a single occurrence

Show more details

Specimen images are retrieved through the ePANDDA API.

Click image to enlarge. Click to access iDigBio record.