''Aeger'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved ...

prawns Prawn is a common name for small aquatic crustaceans with an exoskeleton and ten legs (which is a member of the order decapoda), some of which can be eaten. The term "prawn"Mortenson, Philip B (2010''This is not a weasel: a close look at nature ...

. They first occur in the

Middle Triassic In the geologic timescale, the Middle Triassic is the second of three epochs of the Triassic period or the middle of three series in which the Triassic system is divided in chronostratigraphy. The Middle Triassic spans the time between Ma and ...

, and died out at the end of the

Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the ...

. A total of 21 species are known.

Species

* ''

Aeger brevirostris ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * '' Aeger brevirostris'' * '' Aeger brodiei'' * ''Aeger elegans'' * '' Aeg ...

'' * ''

Aeger brodiei ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * '' Aeger brodiei'' * ''Aeger elegans'' * ''Aeger ...

'' * ''

Aeger elegans ''Aeger elegans'' is a species of fossil prawn Prawn is a common name for small aquatic crustaceans with an exoskeleton and ten legs (which is a member of the order decapoda), some of which can be eaten. The term "prawn"Mortenson, Philip B ...

'' * ''

Aeger elongatus ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * '' Aeger brodiei'' * ''Aeger elegans'' * '' Aege ...

'' * ''

Aeger foersteri ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * '' Aeger brodiei'' * ''Aeger elegans'' * '' Aege ...

'' * ''

Aeger fraconicus ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * '' Aeger brodiei'' * ''Aeger elegans'' * '' Aege ...

'' * ''

Aeger gracilis ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * '' Aeger brevirostris'' * '' Aeger brodiei'' * ''Aeger elegans'' * '' Aeg ...

'' * ''

Aeger hidalguensis ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * '' Aeger brodiei'' * ''Aeger elegans'' * '' Aege ...

'' * ''

Aeger insignis ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * '' Aeger brodiei'' * ''Aeger elegans'' * '' Aege ...

'' * ''

Aeger laevis ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * '' Aeger brodiei'' * ''Aeger elegans'' * '' Aege ...

'' * '' Aeger lehmanni'' * ''

Aeger libanensis ''Aeger libanensis'' is a species of fossil prawn belonging to the family Aegeridae. These prawns had very long pereiopods. Fossil record Fossils of ''Aeger libanensis'' are found in the Cenomanian (Late Cretaceous) marine outcrops at Hjoula an ...

'' * ''

Aeger luxii ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * '' Aeger brodiei'' * ''Aeger elegans'' * '' Aege ...

'' * ''

Aeger macropus ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * ''Aeger brodiei'' * ''Aeger elegans'' * ''Aeger ...

'' * ''

Aeger marderi ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * ''Aeger brodiei'' * ''Aeger elegans'' * ''Aeger ...

'' * '' Aeger muensteri'' * '' Aeger robustus'' * ''

Aeger rostrospinatus ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * ''Aeger brodiei'' * ''Aeger elegans'' * ''Aeger ...

'' * ''

Aeger spinipes ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * ''Aeger brodiei'' * ''Aeger elegans'' * ''Aeger ...

'' * ''

Aeger straeleni ''Aeger'' is a genus of fossil prawns. They first occur in the Middle Triassic, and died out at the end of the Late Cretaceous. A total of 21 species are known. Species * ''Aeger brevirostris'' * ''Aeger brodiei'' * ''Aeger elegans'' * ''Aeger ...

'' * '' Aeger tipularius''

References

Dendrobranchiata Prehistoric Malacostraca Prehistoric crustacean genera Jurassic crustaceans Prehistoric life of Europe Middle Triassic genus first appearances Late Cretaceous genus extinctions {{Dendrobranchiata-stub