5,00
Ex Tax: 5,00
- Ex Tax:
- 5,00
- Availability:
- Op voorraad
- Product Code:
- graptolitia
Fossil Species : Dictyonema Sp, / (Hall, 1851)
Location : Oslo fjord, Norway
Geological Age : Ordovicium +/- 420 MA
Length : 90 mm
Width : 36 mm
Hight : 4 mm
Dictyonema - Graptolite
Graptolites are colony-forming animals that occurred from the late Cambrian to the Devonian. Many graptolites had a planktonic way of life, so they floated like they were in the upper parts of the ocean. Their external skeleton was made up of chitin rather than lime. They are now found as flattened plates in, among other things, black shales. These dictyonema graptolites are known from the Ordovician of Norway.