Mammalia - Artiodactyla - Eschrichtiidae

PaleoDB taxon number: 81900

Alternative combinations: Balaenoptera robusta, Eschrichtius robusta, Plesiocetus robustus

Synonyms: Agaphelus gibbosus Erxleben 1777 (no. 142516), Agaphelus glaucus Cope 1868 (no. 64436), Balaena gibbosa Erxleben 1777 (no. 64846), Eschrichtius gibbosus Erxleben 1777 (no. 69860), Eschrichtius glaucus Cope 1868 (no. 175680), Rachianectes glaucus Cope 1868 (no. 70700)

Full reference: P. J. Van Beneden and P. Gervais. 1868. Ostéographie des cétacés vivants et fossiles, comprenant la description et l'iconographie du squelette et du système dentaire de ces animaux; ainsi que des documents relatifs à leur histoire naturelle 1-634

Belongs to Eschrichtius according to P. Gol'din and M. E. Steeman 2015

Sister taxa: Cyphonotus, Eschrichtius akishimaensis, Eschrichtius mysticetoides

Type specimens:

• Eschrichtius robustus: University Museum of Upsala, a partial skeleton. Its type locality is Graso, which is in a Holocene marine horizon in Sweden.
• Agaphelus glaucus:
• Eschrichtius gibbosus:

Ecology: aquatic carnivore-suspension feeder

Average measurements (in mm): humerus length 292.0, radius length 432.0, skull length 2519.7

Estimated body mass: 14.2 tons based on humerus length and radius length