The first lambeosaurine hadrosaur discovered in Alaska

[Logo7]

A skull fragment discovered in the Liscomb Bonebed of Alaska in 2014 has now been determined to be the first evidence of a lambeosaurine hadrosaur in Alaska. This is the furthest north that a lambeosaurine has ever been found, beating out the previous record of southern Alberta. The massive number of hadrosaurines in the bonebed, including Edmontosaurus, compared to the number of lambeosaurines also suggests that both varieties of hadrosaurs had different habitat preferences. The fossil also suggests a possible link between the lambeosaurines found in North America and those in Asia. Here is a reconstruction of the lambeosaurine as well as an image of the fossil used to describe it and a link to the paper describing these specimens.




Paper (open access!): https://www.nature.com/articles/s41598-019-41325-8

[Halichoeres]

I admire their restraint in not giving it a genus and species.

[Logo7]

I admire their restraint in not giving it a genus and species.

Given the fact that lambeosaurines of many different species were extremely common in Cretaceous North America, I'm not surprised that the scientists would wait for more material before specifying exactly what genus it is.