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4.5" Fossil Mud Lobster (Thalassina) - Gunn Poin, Australia
This is a 4.5" long fossil mud/mangrove lobster (Thalassina anomala) collected from Gunn Point in Australia. Much of the carapace, several legs and parts of the claws are visible and have been prepared from the concretion it was found in.
About Gunn Point Lobster Fossils
These fossil lobsters are Late Pleistocene to Early Holocene in age. It is believed that they were rapidly buried during events such as intense cyclones and the original exoskeleton of the lobster was replaced with calcium carbonate, strontium and iron creating a fairly hard mineral. They are found enclosed in hard, calc-lutite concretions formed during the lithification of calcareous clay around the encapsulated animal. These concretions are washed out of the fossil beds by aggressively heavy seas and onto the beach where they are then collected.
These fossil lobsters are Late Pleistocene to Early Holocene in age. It is believed that they were rapidly buried during events such as intense cyclones and the original exoskeleton of the lobster was replaced with calcium carbonate, strontium and iron creating a fairly hard mineral. They are found enclosed in hard, calc-lutite concretions formed during the lithification of calcareous clay around the encapsulated animal. These concretions are washed out of the fossil beds by aggressively heavy seas and onto the beach where they are then collected.
SPECIES
Thalassina anomala
LOCATION
Gunn Point, Darwin, Northern Territory, Australia
SIZE
4.5" long
CATEGORY
SUB CATEGORY
ITEM
#307724
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