Phyllocarida is a subclass of
crustacean
Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of arthropods that are traditionally a part of the subphylum Crustacea (), a large, diverse group of mainly aquatic arthrop ...
s, comprising the extant order
Leptostraca and the extinct orders
Hymenostraca and
Archaeostraca. This
clade
In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach t ...
of marine crustaceans diversified extensively during the
Ordovician
The Ordovician ( ) is a geologic period and System (geology), system, the second of six periods of the Paleozoic Era (geology), Era, and the second of twelve periods of the Phanerozoic Eon (geology), Eon. The Ordovician spans 41.6 million years f ...
.
See also
*''
Ceratiocaris''
*''
Cinerocaris''
*''
Vladicaris''
References
External links
Malacostraca
Arthropod subclasses
Paleozoic crustaceans
Mesozoic crustaceans
Cenozoic crustaceans
Extant Cambrian first appearances
Taxa described in 1879
Taxa named by Alpheus Spring Packard
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