Species list, Checklist of Class Trilobita ♰ (Trilobites) for Grayson County (Texas, 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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Checklist for Class Trilobita Walch, 1771 (Trilobites)
and region Grayson County (Texas, USA)

Trilobita ♰
Walch, 1771
Trilobites

5
7
1

Families
Genera
Species

List of families for Grayson County (Texas)
5 Families width 1 Species

Asaphidae Burmeister, 1843		0	Species	Taxom
Dinesidae LERMONTOVA, 1940		0	Species	Taxom
Solenopleuridae Angelin, 1854		0	Species	Taxom
Pliomeridae Raymond, 1913		1	Species	Taxom
Dimeropygidae Hupé, 1953		0	Species	Taxom

Genera for Grayson County (Texas)
7 Genera with 1 Species

Bellefontia ULRICH, 1924		0	Species	Taxom
Compsocephalus REPINA, 1964		0	Species	Taxom
Hystricurus Raymond, 1913		0	Species	Taxom
Parahystricurus Ross, 1951		0	Species	Taxom
Protopliomerella Harrington, 1951		1	Species	Taxom
Pseudohystricurus Ross, 1951		0	Species	Taxom
Symphysurina ULRICH, 1924		0	Species	Taxom

Species list for Grayson County (Texas)
1 Species

Protopliomerella contracta ♰ Ross, 1951

Subnodes of Trilobita with occurrences in Grayson County (Texas)

Order	Asaphida ♰ Salter, 1864	1 2 0	Family Genera Species	Taxom
Order	Corynexochida ♰ Kobayashi, 1935	1 1 0	Family Genus Species	Taxom
Order	Phacopida ♰ Salter, 1864	1 1 1	Family Genus Species	Taxom
Order	Proetida ♰ Fortey & Owens, 1975	1 1 0	Family Genus Species	Taxom
Order	Ptychopariida ♰ Swinnerton, 1915	1 2 0	Family Genera 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