Species list, Checklist of Family Ptychaspididae ♰ for Changshan Formation (Shandong, China)

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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Changshan Formation

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Checklist for Family Ptychaspididae Raymond, 1924
and region Changshan Formation (Shandong, China)

Class	Trilobita ♰ Walch, 1771 Trilobites	26 65 65	Families Genera Species	Taxom
Order	Asaphida ♰ Salter, 1864	10 16 16	Families Genera Species	Taxom
Suborder	Asaphina ♰ Fortey & Chatterton, 1988	10 16 16	Families Genera Species	Taxom
Superfamily	Dikelokephaloidea ♰ Miller, 1889	2 2 2	Families Genera Species	Taxom
Family	Ptychaspididae ♰ Raymond, 1924	1 1	Genus Species	Taxom

Genera for Changshan Formation
1 Genera with 1 Species

Quadraticephalus Sun, 1924

1

Species

Species list for Changshan Formation
1 Species

Quadraticephalus walcotti ♰ Sun, 1924

Links, sources and further information

Ptychaspididae at gbif.org
Ptychaspididae at irmng.org