Barsboldia

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Barsboldia Temporal range: Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Sacrum of the holotype
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	†Ornithischia
Clade:	†Ornithopoda
Family:	†Hadrosauridae
Subfamily:	†Saurolophinae
Genus:	†Barsboldia Maryańska & Osmólska, 1981
Type species
†Barsboldia sicinskii Maryańska & Osmólska, 1981

Barsboldia (meaning "of

Barsboldia was a large hadrosaur, previously measured 10 metres (33 ft) in length and 5 metric tons (5.5 short tons) in body mass.

Maryańska and Osmólska described their new genus as a lambeosaurine (or hollow-crested duckbill), the first from the Nemegt Formation, although it lacked a skull. However, the sacrum has a keel along the bottom, a possible lambeosaurine feature,^[5] and the bones closely resemble those of Hypacrosaurus.^[4][6] With only one partial skeleton known, and no skull, the genus has been considered dubious^[5] or a possible lambeosaurine of uncertain placement.^[7] A newer study published in 2011 suggests that Barsboldia is actually a valid saurolophine.^[8]

The following cladogram was recovered in the 2011 phylogenetic analysis of Hadrosauroidea by Prieto-Márquez (the relationships within Lambeosaurinae and between basal hadrosauroids aren't shown).^[8]

Paleobiology

As a hadrosaurid, Barsboldia would have been a

• Timeline of hadrosaur research

References