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... OPTERYG ... (113 elements)

APOPTERYGION · CALOPTERYGIDAE · CHRYSOPTERYGIUS · CROSSOPTERYGIAN · CROSSOPTERYGII · DIPLOPTERYGIUM · ENDOPTERYGOTA · EXOPTERYGOTA · MESOPTERYGIUM · PSEUDOPTERYGIUM

... PTERYGI ... (143 elements)

ACANTHOPTERYGII · ACTINOPTERYGII · CROSSOPTERYGII · MALACOPTERYGII · PARACANTHOPTERYGII · PROTACANTHOPTERYGII · SARCOPTERYGII · STENOPTERYGII · TRIPTERYGIIDAE · XENOPTERYGII

... COPTERYGI ... (22 elements)

MALACOPTERYGIAN · MALACOPTERYGIEN · MALACOPTERYGIENS · MALACOPTERYGII · MALACOPTERYGIOUS

... EOPTERYGI ... (7 elements)

ARCHAEOPTERYGIDAE · ARCHAEOPTERYGIFORMES · NEOPTERYGII · OSTEOPTERYGIOUS

... HOPTERYGI ... (18 elements)

ACANTHOPTERYGIAN · ACANTHOPTERYGIEN · ACANTHOPTERYGIENS · ACANTHOPTERYGII · ACANTHOPTERYGIOUS

... IOPTERYGI ... (4 elements)

SCANSORIOPTERYGIDAE · TAENIOPTERYGIDAE

... LOPTERYGI ... (2 elements)

CALOPTERYGIDAE · DIPLOPTERYGIUM

... NOPTERYGI ... (18 elements)

ACTINOPTERYGIEN · ACTINOPTERYGII · ACTYNOPTERYGIEN · ACTYNOPTERYGIENS · CRINOPTERYGIDAE

... OPTERYGIA ... (13 elements)

ACANTHOPTERYGIAN · CHONDROPTERYGIAN · CROSSOPTERYGIAN · ICHTHYOPTERYGIA · MALACOPTERYGIAN

... OPTERYGID ... (10 elements)

ARCHAEOPTERYGIDAE · CALOPTERYGIDAE · CHTENOPTERYGIDAE · CRINOPTERYGIDAE · SCANSORIOPTERYGIDAE

... OPTERYGIE ... (21 elements)

ACANTHOPTERYGIENS · ACTYNOPTERYGIEN · ACTYNOPTERYGIENS · CHONDROPTERYGIEN · CROSSOPTERYGIEN

... OPTERYGIF ... (1 element)

ARCHAEOPTERYGIFORMES

... OPTERYGII ... (39 elements)

ACANTHOPTERYGII · ACTINOPTERYGII · CROSSOPTERYGII · MALACOPTERYGII · NEOPTERYGII

... OPTERYGIO ... (4 elements)

ACANTHOPTERYGIOUS · APOPTERYGION · MALACOPTERYGIOUS · OSTEOPTERYGIOUS

... OPTERYGIU ... (14 elements)

CHEIROPTERYGIUM · CHRYSOPTERYGIUS · DIPLOPTERYGIUM · ICHTHYOPTERYGIUM · MESOPTERYGIUM

... ROPTERYGI ... (15 elements)

CHEIROPTERYGIUM · CHONDROPTERYGIAN · CHONDROPTERYGIEN · CHONDROPTERYGII · GASTEROPTERYGIEN

... SOPTERYGI ... (7 elements)

CHRYSOPTERYGIUS · CROSSOPTERYGIAN · CROSSOPTERYGIEN · CROSSOPTERYGIENS · CROSSOPTERYGII

... YOPTERYGI ... (4 elements)

ICHTHYOPTERYGIA · ICHTHYOPTERYGIUM