Thalassarche fossil map
Where fossils of Thalassarche have been found, shown on the Earth as it looked about 0 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 0 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →

| Group | Prehistoric birds |
|---|---|
| Lived | 7.246 million years ago to the present (Messinian to Holocene) |
| Periods | Neogene, Quaternary |
| Family | Diomedeidae |
| Named by | Reichenback 1853 |
| Fossil records | 10 occurrences at 8 locations (PBDB) |
| Found in | New Zealand, Chile, Australia, French Southern Territories |
| Rock formations | txn:39692, Hillgrove, BahĂa Inglesa |
About Thalassarche
The mollymawks are a group of medium-sized albatrosses that form the genus Thalassarche. The name has sometimes been used for the genus Phoebetria as well, but these are usually called sooty albatrosses. They are restricted to the Southern Hemisphere, where they are the most common of the albatrosses. They were long considered to be in the same genus as the great albatrosses, Diomedea, but a study of their mitochondrial DNA showed that they are a monophyletic taxon related to the sooty albatrosses, and they were placed in their own genus.
Text in “About” is quoted from the Wikipedia article Mollymawk (revision 1375330982), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q614004.