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Ostracoda (Ostracods)

      Ostracoda is a class of the Crustacea, sometimes known as the seed shrimp because of their appearance. Some 65,000 species (13,000 of which are extant taxa) have been identified,grouped into several orders. Ostracods are small crustaceans, typically around 1 millimetre (0.04 in) in size, but varying from 0.2 millimetres (0.008 in) to 30 mm (1.2 in) in the case of Gigantocypris. Their bodies are flattened from side to side and protected by a bivalve-like, chitinous or calcareous valve or "shell". The hinge of the two valves is in the upper (dorsal) region of the body. Ostracods are grouped together based on gross morphology, but the group may not be monophyletic; their molecular phylogeny remains ambiguous. Ecologically, marine ostracods can be part of the zooplankton or (most commonly) they are part of the benthos, living on or inside the upper layer of the sea floor. Many ostracods, especially the Podocopida, are also found in fresh water and terrestrial species of Mesocypris are known from humid forest soils of South Africa, Australia, New Zealand and Tasmania. They have a wide range of diets, and the group includes carnivores, herbivores, scavengers, and filter feeders.

Source: http://en.wikipedia.org/wiki/Ostracoda


 

p387
Entomozoe migrans p387
p665
Entomozoe migrans p665
p407
Entomozoe migrans p407
JK5613
Leperditia JK5613
JK5611
Leperditia JK5611
JK5570
Leperditia JK5570
PB881
Leperditicopida indet. PB881
JK6088
Ostracoda Latreille, 1802 JK6088
JK6617
Ostracoda Latreille, 1802 JK6617
JK6615
Ostracoda Latreille, 1802 JK6615
JK6087
Ostracoda Latreille, 1802 JK6087
JK6085
Ostracoda Latreille, 1802 JK6085
JK18016
Ostracoda Latreille, 1802 JK18016
MM225
Ostracoda Latreille, 1802 MM225
JK6614
Ostracoda Latreille, 1802 JK6614
JK5261
Ostracoda Latreille, 1802 JK5261
MM441
Parapyxion MM441
MM443
Parapyxion MM443
MM444
Parapyxion MM444
MM447
Parapyxion MM447

In the Virtual Museum there are total 666 samples

Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]