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Genus	Species
Asteromorpha	4
Asteronyx	8
Asteroporpa	6
Asteroschema	27
Asterostegus	3
Astracme	1
Astroboa	6
Astrobrachion	2
Astroceras	13
Astrochalcis	1
Astrocharis	3
Astrochele	2
Astrochlamys	2
Astrocladus	4
Astroclon	2
Astrocrius	2
Astrodendrum	3
Astrodia	5
Astroglymma	1
Astrogomphus	1
Astrohamma	1
Astroniwa	1
Astrophyton	1
Astrosierra	2
Astrospartus	1
Astrothamnus	2
Astrothorax	2
Astrothrombus	3
Astrotoma	2
Conocladus	1
Euryale	2
Gorgonocephalus	10
Ophiocreas	9
Ophiocrene	2
Schizostella	1
Squamophis	3
Sthenocephalus	2
Trichaster	2