Pristidactylus: a Basiliscus sister without a crest

Figure 1. Pristidactlyus torquatus in vivo.

Figure 1. Pristidactlyus torquatus in vivo.

I got interested in the extant lizard, Pristidactylus
(Figs, 1, 2) when Bever and Norell 2017 used it as an outgroup to the clade Rhynchocephalia. The large reptile tree (LRT, 1122 taxa) using phylogenetic analysis falsifies that hypothesis of relationships.

Figure 1. Pristidactylus skull in 5 views. This iguanid lizard nests with the crested basilisk.

Figure 2. Pristidactylus skull in 5 views. This iguanid lizard nests with the crested basilisk.

Pristidacatylus torquatus (Phillippi 1861, extant, snout-vent length = 6-11cm) is the extant forest lizard. It is related to Basiliscus and feeds on beetles. Image from Digimorph.org.

Figure 3. Basiliscus, the "Jesus" lizard, does not share as many traits as Draco and Chlamydosaurus do, but is related, given the short list of Iguanids currently employed.

Figure 3. Basiliscus, the “Jesus” lizard, does not share as many traits as Draco and Chlamydosaurus do, but is related, given the short list of Iguanids currently employed.

Basiliscus basiliscus (Laurenti 1768) is the extant basilisk. It is related to Iguana but has a tall parietal crest. This frilled lizard is able to run bipedally across ponds. Skull image from Digimorph.org and used with permission.

References
Laurenti JN 1768. Specimen Medicum, Exhibens Synopsin Reptilium Emendatum cum
Experimentis Circa Venena et Antidota Reptilium Austriacorum. Wien.
Linnaeus C 1758. Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I. Editio decima, reformata.
Philippi RA and Landeck L 1861. Neue Wirbelthiere von Chile. Archiv für Naturgeschichte 27 (1): 289-301.

wiki/Iguana
wiki/Basiliscus_(genus)

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.