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Sphenodus
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Order Synechodontiformes DUFFIN et WARD, 1993
Family Orthacodidae GLÜCKMAN, 1957
Genus Sphenodus AGASSIZ, 1843

Sphenodus lundgreni (DAVIS, 1890): Selandian (Paleocene), Berdeyka, Volgograd Region, Volga Area, Russia

40 mm H

Sphenodus schurowskii: Tithonian (Late Jurassic), Voskresensk, Moscow Region, Russia

14 mm H, 14 mm H

Sphenodus sp.: Oxfodian (Late Jurassic), Holderbank, Switzerland

11 mm H

20061217

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Fumio Nakagawa@

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