Species list, Checklist of Class Trilobita ♰ (Trilobites) for Contra Costa County (California, USA)

Ants	Arachnids
Bees	Beetles
Booklice	Bugs
Bumblebees	Butterflies
Cicadas	Crane flies
Dragonflies	Earwigs
Flies	Isopods
Locusts	Mantises
Mayflies	Mosquitoes
Myriapods	Net-winged
Plant-parasitic	Scorpion flies
Termites	Wasps

Taxonomy & Distribution
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Contra Costa County

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Checklist for Class Trilobita Walch, 1771 (Trilobites)
and region Contra Costa County (California, USA)

Trilobita ♰
Walch, 1771
Trilobites

3
3
2

Families
Genera
Species

List of families for Contra Costa County
3 Families width 2 Species

Calymenidae Burmeister, 1843		0	Species	Taxom
Tropidocoryphidae Pribyl, 1946		1	Species	Taxom
Asaphidae Burmeister, 1843		1	Species	Taxom

Genera for Contra Costa County
3 Genera with 2 Species

Calymene Brongniart, 1822		0	Species	Taxom
Cyrtosymboloides Alberti, 0		1	Species	Taxom
Isotelus Dekay, 1824		1	Species	Taxom

Species list for Contra Costa County
2 Species

Cyrtosymboloides bembix ♰
Isotelus gigas ♰ Dekay, 1824

Subnodes of Trilobita with occurrences in Contra Costa County

Order	Asaphida ♰ Salter, 1864	1 1 1	Family Genus Species	Taxom
Order	Phacopida ♰ Salter, 1864	1 1 0	Family Genus Species	Taxom
Order	Proetida ♰ Fortey & Owens, 1975	1 1 1	Family Genus Species	Taxom

Links, sources and further information

Trilobita at ps-19.org
Trilobita at trilobites.info
Trilobita at westerntrilobites.com
Trilobita at gbif.org
Trilobita at irmng.org