A 100 million year old fish fossil preserved as a very typical nodule
A 100 million year old fish fossil preserved as a very typical nodule. Negatives and positives are all present/Mesozoic Cretaceous (135 million -- 65 million years ago). This is a Brazilian fish fossil that measures over 25 cm in linear measurement. This fossil is a very typical nodule. A nodule is a round ball of ammonia generated from the remains that reacts with calcium carbonate and solidifies around the remains. In many cases, the outer skin protects the remains and keeps them in a good state of preservation. The large gills are preserved on the left side of the photo and the spine runs almost straight through. As I mentioned at the beginning, the fossil here is a typical nodule. You can really see that it is covered by an outer skin formed by the reaction of ammonia and calcium carbonate. Most of it is covered with fine scales.
It is broken in the center. This specimen is a set of two pieces: a positive side with the main body of the fossil still intact and a negative side with the negatives preserved. Comparison with a 100 yen coin. This is a 100 million year old fish fossil preserved as a very typical nodule.
Locality Ceara, Brazil Size Body linear distance 25.3 cm 25 cm Overall 25.5 cm x 8.2 cm x 6.3 cm thick including matrix 1785 g. Thank you for your understanding. This item is in the category "Collectibles\Rocks, Fossils & Minerals\Fossils\Other Collectible Fossils".
The seller is "fishingmania-jpn" and is located in this country: JP. This item can be shipped worldwide.
- Size2: Overall 25.5cm x 8.2cm x 6.3cm (including matrix) 1785g
- Fossil: Fish
- Size: 25.3 cm (linear distance of the body) 25 cm
- Place of origin: Ceara, Brazil