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Taxonomy
Gerrhonotidae was named by Cope (1864). It is extant.
It was synonymized subjectively with Anguidae by Hay (1902); it was reranked as the subfamily Gerrhonotinae by McDowell and Bogert (1954), McGrew et al. (1959), Estes (1964), Kuhn (1966), Estes (1983) and Norell (1989).
It was assigned to Diploglossa by Cope (1871) and Cope (1875); to Anguinidae by McDowell and Bogert (1954); and to Anguidae by McGrew et al. (1959), Estes (1964), Kuhn (1966), Estes (1983) and Norell (1989).
It was synonymized subjectively with Anguidae by Hay (1902); it was reranked as the subfamily Gerrhonotinae by McDowell and Bogert (1954), McGrew et al. (1959), Estes (1964), Kuhn (1966), Estes (1983) and Norell (1989).
It was assigned to Diploglossa by Cope (1871) and Cope (1875); to Anguinidae by McDowell and Bogert (1954); and to Anguidae by McGrew et al. (1959), Estes (1964), Kuhn (1966), Estes (1983) and Norell (1989).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1864 | Gerrhonotidae Cope fig. 1864 |
| 1871 | Gerrhonotidae Cope p. 236 |
| 1875 | Gerrhonotidae Cope p. 18 |
| 1954 | Gerrhonotinae McDowell and Bogert p. 130 |
| 1959 | Gerrhonotinae McGrew et al. p. 134 |
| 1964 | Gerrhonotinae Estes p. 119 |
| 1966 | Gerrhonotinae Kuhn p. 54 |
| 1983 | Gerrhonotinae Estes |
| 1989 | Gerrhonotinae Norell |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Subfm. Gerrhonotinae Cope 1864
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G. Abronia Gray 1838 [Arboreal alligator lizards]
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†Abronia cuyama Scarpetta and Ledesma 2023
Abronia deppei Wiegmann 1828 [Deppe's arboreal alligator lizard]
G. Barissia Gray
G. Gerrhonotus Wiegmann 1828 [alligator lizard]
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Gerrhonotus imbricatus Wiegmann 1828 [Rain alligator lizard]
Gerrhonotus liocephalus Wiegmann 1828 [Texas alligator lizard]
Gerrhonotus liocephalus infernalis Baird 1858 [Texas alligator lizard]
Gerrhonotus lugoi McCoy 1970 [Lugo's alligator lizard]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. B. McDowell and C. M. Bogert 1954 | Head with large and regular osteoderms and associated epidermal scutes; orbital border of frontal strongly concave, but overlying osteoderm may have straight lateral border; osteoderms heavy to thin, or even absent over parts of body, but always of rectangular form, the lateral edge not beveled, sutured to one another lateraly, but imbricate anteriorly and posteriorly; a lateral fold of unossified granules between the dorsal and ventral osteodermal armor; teeth varying from blunt to fang-like (both extremes being seen within the genus Ophisaurus, where O. apodus has molar-like teeth, but 0.harti has Anguis-like teeth); anterior (choanal) border of palatine posterior to vomer and to anterior extremity of interpterygoid vacuity; phalangeal formula of forms with ambulatory limbs the normal 2-3-4-5-3. |