Families described 
        
        
            
                
                    - Siderolamprinae  Schools & Hedges, 2021
                        Request Subfamily,
                        LIZARD
                    
- Celestinae  Schools & Hedges, 2021
                        Request Subfamily,
                        LIZARD
                    
- Scinaxinae  Duellman, Marion, & Hedges, 2016
                        Request Subfamily,
                        FROG
                    
- Ristellidae  Hedges, 2014
                        Request Family,
                        LIZARD
                    
- Ateuchosauridae  Hedges, 2014
                        Request Family,
                        LIZARD
                    
- Madatyphlopinae  Hedges, Marion, Lipp, Marin, & Vidal, 2014
                        E-print Subfamily, SNAKE
                    
- Asiatyphlopinae  Hedges, Marion, Lipp, Marin, & Vidal, 2014
                        E-print Subfamily, SNAKE
                    
- Afrotyphlopinae  Hedges, Marion, Lipp, Marin, & Vidal, 2014
                        E-print Subfamily, SNAKE
                    
- Chioniniinae  Hedges & Conn, 2012
                        E-print Subfamily,
                        LIZARD
                    
- Dasiinae  Hedges & Conn, 2012
                        E-print Subfamily,
                        LIZARD
                    
- Trachylepidinae  Hedges & Conn, 2012
                        E-print Subfamily,
                        LIZARD
                    
- Xenotyphlopidae  Vidal, Vences, Branch, & Hedges, 2010
                        E-print Family,
                        SNAKE
                    
- Gerrhopilidae  Vidal, Wynn, Donellan & Hedges, 2010
                        E-print Family,
                        SNAKE
                    
- Myriopholini  Hedges, Adalsteinsson, & Branch, 2009 E-print Tribe (family group),
                        SNAKE
                    
- Epacrophini  Hedges, Adalsteinsson, & Branch, 2009 E-print Tribe (family group),
                        SNAKE
                    
- Rhinoleptini  Hedges, Adalsteinsson, & Branch, 2009 E-print Tribe (family group),
                        SNAKE
                    
- Tetracheilostomina  Hedges, Adalsteinsson, & Branch, 2009 E-print Subtribe (family group),
                        SNAKE
                    
- Renina  Hedges, Adalsteinsson, & Branch, 2009 E-print Subtribe (family group),
                        SNAKE
                    
- Epictina  Hedges, Adalsteinsson, & Branch, 2009 E-print Subtribe (family group),
                        SNAKE
                    
- Epictini  Hedges, Adalsteinsson, & Branch, 2009 E-print Tribe (family group),
                        SNAKE
                    
- Epictinae  Hedges, Adalsteinsson, & Branch, 2009 E-print Subfamily,
                        SNAKE
                    
- Ceuthomantidae  Heinicke, Duellman, Trueb, Means, MacCulloch, & Hedges, 2009
                        E-print Family,
                        FROG
                    
- Uromacerina  Hedges & Vidal, 2009
                        E-print Subtribe (family group),
                        SNAKE
                    
- Arrhytonina  Hedges & Vidal, 2009
                        E-print Subtribe (family group),
                        SNAKE
                    
- Strabomantinae  Hedges, Duellman, & Heinicke, 2008
                        E-print Subfamily,
                        FROG
                    
- Holoadeninae  Hedges, Duellman, & Heinicke, 2008
                        E-print Subfamily,
                        FROG
                    
- Strabomantidae  Hedges, Duellman, & Heinicke, 2008
                        E-print Family,
                        FROG
                    
- Phyzelaphryninae  Hedges, Duellman, & Heinicke, 2008
                        E-print Subfamily,
                        FROG
                    
- Craugastoridae  Hedges, Duellman, & Heinicke, 2008
                        E-print Family,
                        FROG
                    
- Cadeidae  Vidal & Hedges, 2008
                        E-print Family,
                        AMPHISBAENIAN