Huehuecuetzpalli mixtecus is an extinct lizard from the Early Cretaceous (late Albian) Tlayúa Formation in Tepexi de Rodríguez, Central Mexico. Although...

†Huehuecuetzpalli mixtecus †Pristiguana brasiliensis...

†Vellbergia? Pan-Squamata †Sophineta? †Megachirella? †Marmoretta? †Tamaulipasaurus? †Hongshanxi †Bellairsia †Oculudentavis †Huehuecuetzpalli Squamata...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

recovering it as part of a weakly supported clade also containing Huehuecuetzpalli and Oculudentavis. Phylogeny after Talanda et al. (2022): S. E. Evans...

Huehuecuetzpalli...

†Dalinghosaurus †Eichstaettisaurus †Gephyrosaurus? †Hongshanxi †Hoyalacerta †Huehuecuetzpalli †Kuroyuriella †Marmoretta? †Megachirella? †Meyasaurus †Oculudentavis...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

to be a stem-group squamate, forming a weakly supported clade with Huehuecuetzpalli from the mid-Cretaceous of Mexico and Bellairsia. The cladogram below...

†Huehuecuetzpalli mixtecus †Pristiguana brasiliensis...

Genus Species Abundance Notes Huehuecuetzpalli H. mixtecus A primitive lizard Pamizinsaurus P. tlayuaensis An osteoderm-covered sphenodontian Ankylosphenodon...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

†Huehuecuetzpalli...

†Dalinghosaurus †Eichstaettisaurus †Gephyrosaurus? †Hongshanxi †Hoyalacerta †Huehuecuetzpalli †Kuroyuriella †Marmoretta? †Megachirella? †Meyasaurus †Oculudentavis...

†Dalinghosaurus †Eichstaettisaurus †Gephyrosaurus? †Hongshanxi †Hoyalacerta †Huehuecuetzpalli †Kuroyuriella †Marmoretta? †Megachirella? †Meyasaurus †Oculudentavis...

†Dalinghosaurus †Eichstaettisaurus †Gephyrosaurus? †Hongshanxi †Hoyalacerta †Huehuecuetzpalli †Kuroyuriella †Marmoretta? †Megachirella? †Meyasaurus †Oculudentavis...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

†Dalinghosaurus †Eichstaettisaurus †Gephyrosaurus? †Hongshanxi †Hoyalacerta †Huehuecuetzpalli †Kuroyuriella †Marmoretta? †Megachirella? †Meyasaurus †Oculudentavis...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

†Huehuecuetzpalli mixtecus †Pristiguana brasiliensis...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

†Dalinghosaurus †Eichstaettisaurus †Gephyrosaurus? †Hongshanxi †Hoyalacerta †Huehuecuetzpalli †Kuroyuriella †Marmoretta? †Megachirella? †Meyasaurus †Oculudentavis...

Brasiliguana Hoyalacerta? Huehuecuetzpalli? Swainiguanoides †Arretosauridae Arretosaurus Dornosaurus Ergiliinsaurus Khaichinguana †Priscagamidae Heterodontagama...

†Dalinghosaurus †Eichstaettisaurus †Gephyrosaurus? †Hongshanxi †Hoyalacerta †Huehuecuetzpalli †Kuroyuriella †Marmoretta? †Megachirella? †Meyasaurus †Oculudentavis...