Halla Formation

58 distinct taxa, from 231 fossil occurrences the Paleobiology Database records under this name, spanning 443–420 Mya.

Gotland · SE

58 taxa · 231 fossils · 443–420 Mya

Members recorded: Djupvik, Mulde Brick-clay, B, Mulde Brick Clay.

Halla Formation — 57.50°N, 18.77°EHalla Formation — 57.30°N, 18.17°EHalla Formation — 57.42°N, 18.13°EHalla Formation — 57.38°N, 18.25°EHalla Formation — 57.30°N, 18.15°EHalla Formation — 57.61°N, 18.80°EHalla Formation — 57.53°N, 18.53°EHalla Formation — 57.56°N, 18.60°E

Loading coastlines…

8 distinct localities, where the rock is now rather than where it was laid down. Tectonics draws the world it belonged to.

When

What has been found

The 40 most often recorded, of 58.

What else lived thenRank the rock of a period

Counts are of occurrence records, which measure the rock and the fieldwork together.