Samples from the Lomonosov Ridge place new constraints on the geological evolution of the Arctic Ocean KnudsenC. HopperJ. R. BiermanP. R. BjeragerM. FunckT. GreenP. F. InesonJ. R. JapsenP. MarcussenC. SherlockS. C. ThomsenT. B. 2017 Detrital zircon age data and details of the thermal history constraints.