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| | Sphenodontida |
 | | Evans, S. E., Prasad, G. and Manhas, B. K., 2001: Rhynchocephalians (Diapsida: Lepidosauria) from the Jurassic Kota Formation of India. |
 | | Evans, S. and Sigogneau-Russell, D., 1997: New sphenodontians (Diapsida: Lepidosauria: Rhynchocephalia) from the Early Cretaceous of North Africa. |
 | | Sues, H.-D., Shubin, N. and Olsen, P. E., 1994: A new sphenodontian (Lepidosauria: Rhynchocephalia) from the McCoy Brook Formation (Lower Jurassic) of Nova Scotia, Canada. |
| www.fmnh.helsinki.fi /users/haaramo/Metazoa/Deuterostoma/Chordata/Reptilia/Lepidosauromorpha/Sphenodontida.htm (548 words) |
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