Laurasian in a sentence
1. Salamanders have a mostly Laurasian distribution, being present in much of the Holarctic region of the northern hemisphere.
2. During the Cretaceous period, a few species of primitive ants ranged widely on the Laurasian supercontinent (the Northern Hemisphere).
3. The Early Cretaceous saw the expansion of seaways, and as a result, the decline and/or extinction of Laurasian sauropods.
4. Laurasian marsupials eventually died off, for not entirely clear reasons;
5. Crocodiles also diversified during the Early Cretaceous but were divided into Laurasian and Gondwanan populations;
6. A recent study posits a Laurasian origin for the clade.
7. Biogeography of known fossil and the living taxa of cranes suggests that the group is probably of (Laurasian?) Old World origin.
8. Laurasian marsupials eventually died off;
9. However, molecular data and a Laurasian distribution suggest origins that go further back.
10. Crocodiles also diversified during the Early Cretaceous but were divided into Laurasian and Gondwanan populations;
11. The Acadian orogeny involved the collision of a series of Avalonian continental fragments with the Laurasian continent.
12. A 2016 study of both genetic and morphological divergence concludes that the group had a Laurasian origin.
13. Tyrannosauroids lived on the Laurasian supercontinent beginning in the Jurassic Period.
14. The laurasian and the gondwanian fauna differed considerably in the Early Jurassic.
15. Which one is preferred depends on whether the Hystricomorpha were Laurasian or Gondwanan in origin.
16. The amphibian fauna of both these continents are varied due to collisions with Laurasian continents.
17. The fossil record of Mesozoic birds mainly consists of Eurasian rather than American Laurasian forms.
18. Broadly speaking, camarasaurids occupied a distribution limited to the Laurasian continent during the Upper Jurassic.
19. Peninsular India's subsequent movement towards, and collision with, the Laurasian landmass set off a mass exchange of species.
20. Most eutriconodont remains occur in laurasian landmasses.
21. The family shows a Laurasian distribution, with most species found in temperate Europe and the west coast of North America.
22. The formation of the Asian fauna began in the Mesozoic with the splitting of Laurasian supercontinent.
23. The orogeny between Laurasia and Gondwana created the Appalachian Mountains, and an exodus of water from the Laurasian land surface.
24. The family is classed as a Laurasian group, with specimens located in North America, Europe, and South-East Asia.
25. Fossil evidence suggests an ancient Laurasian origin.
26. During the middle Paleozoic, the Zonguldak basin was part of the south-facing passive margin of the Laurasian plate.
27. All but one were from the Laurasian supercontinent, which comprised Europe, North America and Greenland.
28. During the Cretaceous ants were confined to the northern Laurasian supercontinent, with only a few widespread primitive species.
29. It has a primarily Laurasian distribution, with fossils found mostly in North America and Eurasia.
30. Fossils of both subfamilies have been found in both Gondwanan and Laurasian deposits.
- the northern hemisphere
- Central America
- South America
- 23 million years ago