Texas Horned Lizard
Phrynosoma cornutum
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyPhrynosomatidae (Frinosomàtids)
- GenusPhrynosoma (Horned Lizards)
- SpeciesPhrynosoma cornutum (Texas Horned Lizard)
The Texas horned lizard (Phrynosoma cornutum) is one of about 21 North American species of spikey-bodied reptiles called horned lizards, all belonging the genus Phrynosoma. It occurs in south-central regions of the US and northeastern Mexico, as well as several isolated introduced records and populations from Southern United States. Though some populations are stable, severe population declines have occurred in many areas of Texas and Oklahoma. The Texas spiny lizard (Sceloporus olivaceus) may be confused for a Texas horned lizard due to its appearance and overlapping habitat. Texas horned lizard populations show strong genetic structuring across their range, with limited gene flow between regions. Because the Texas horned lizard is listed as a threatened species in the state, it is illegal to pick up, touch, or possess them in Texas. Wikipedia →
20–30% of wildlife watchers report a Texas Horned Lizard sighting in Guadalupe Mountains National Park, based on 17 days of visitor records from GBIF citizen-science data.
Closest Relatives at Guadalupe Mountains National Park
Roundtail Horned Lizard
Phrynosoma modestum
Greater Short-horned Lizard
Phrynosoma hernandesi
Greater Earless Lizard
Cophosaurus texanus
Southwestern Fence Lizard
Sceloporus cowlesi
Ornate Tree Lizard
Urosaurus ornatus
Crevice Spiny Lizard
Sceloporus poinsettii
Common Side-blotched Lizard
Uta stansburiana
Western Earless Lizard
Holbrookia maculata
📅 Monthly Probability
☀️🌙 When They're Spotted
Active throughout day and night · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Guadalupe Mountains National Park | 🇺🇸 United States | |
| 2 | Big Bend National Park | 🇺🇸 United States | |
| 3 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
Quick answers
What are the chances of seeing a Texas Horned Lizard in Guadalupe Mountains National Park?
About 21% of wildlife watchers report a Texas Horned Lizard sighting in Guadalupe Mountains National Park, based on 17 days of visitor records from GBIF citizen-science data.
When is the best time to see Texas Horned Lizard in Guadalupe Mountains National Park?
May has the highest sighting rate for Texas Horned Lizard in Guadalupe Mountains National Park in our monthly data.