Texas horned lizard
Phrynosoma cornutum
 
ITIS Species Code:   173938         NatureServ Element Code:   ARACF12010
 
Taxa: 
Order: 
Family: 
Reptilia
Squamata
Phrynosomatidae
NatureServe Global Rank: 
NatureServe State (NC) Rank: 
 
G4G5
SE
 
Federal Status: 
NC State Status: 
 
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HEXAGONAL KNOWN RANGE:PREDICTED DISTRIBUTION:
 
SUMMARY OF STATEWIDE PREDICTED DISTRIBUTION:
 
Land Unit

US Fish & Wildlife Service
US Forest Service
US National Park Service
US Department of Defense
NC State Parks
NC University System
NC Wildlife Res. Com.
NC Forest Service
NC Div. of Coastal Mgmt.
Local Governments
Non-Governmental Org.
Other Public Lands
Private Lands

GAP Status 1-2
All Protected Lands
Statewide
 
Hectares

0.00
349.20
406.98
0.00
0.81
0.00
0.00
0.00
0.00
9.27
3.96
0.00
838.71

15.93
770.22
1,608.93
 
Acres

0.00
862.89
1,005.67
0.00
2.00
0.00
0.00
0.00
0.00
22.91
9.79
0.00
2,072.50

39.36
1,903.25
3,975.75
% of Dist. on
Prot. Lands

0.0 %
45.3 %
52.8 %
0.0 %
0.1 %
0.0 %
0.0 %
0.0 %
0.0 %
0.5 %
0.5 %
0.0 %
0.0 %

2.1 %
-----   
-----   
% of Dist. on
All Lands

0.0 %
21.7 %
25.3 %
0.0 %
< 0.1 %
0.0 %
0.0 %
0.0 %
0.0 %
0.6 %
0.2 %
0.0 %
52.1 %

1.0 %
-----   
-----   
 
HABITAT DESCRIPTION:
Palmer and Braswell (1995) recognize an introduced but established population on the coastal plain in Onslow County.

Eggs are laid in nests dug an average 15 cm deep (Martof et al 1980).

NATURE SERVE GLOBAL HABITAT COMMENTS:

Open arid and semiarid regions with sparse vegetation; grass, cactus, scattered brush or scrubby trees. Soil may vary in texture from sandy to rocky. Burrows into soil, enters rodent burrow, or hides under rock when inactive. Sheffield and Carter (1994, Herpetol. Rev. 25:67-68) reported individuals that climbed 1-2 m up tree trunks when soils were wet after heavy rains. Eggs are laid in nests dug in soil or under rocks (Collins 1982).

 
MODELING DESCRIPTION:
Occupied Landcover Map Units:
Code NameDescription NC Natural Heritage Program Equivalent
42 Xeric Longleaf Pine Sandhills including a range of longleaf pine density from predominantly wiregrass, scrub oak dominated to true longleaf pine woodland. This does not include mesic or saturated flatwood types. Xeric Sandhill Scrub, Pine/Scrub Oak Sandhill, Coastal Fringe Sandhill
46 Xeric Oak - Pine Forests Mixed forest dominated by yellow pines with white or northern red oaks co-dominating. Pine Oak Heath
214 Barren; bare rock and sand Areas of bare rock, sand or clay. No equivalent
60 Sand Exposed sand, predominantly in the sandhills region where disturbance or the extreme site conditions prevent natural regeneration. No equivalent
View Entire Landcover Legend
 
Additional Spatial Constraints:
Exclude all area outside of known range.
Limited to elevation range: less than 5900 ft.
 
CITATIONS:
Price, A. H. 1990. PHRYNOSOMA CORNUTUM. Cat. Am. Amph. Rept. 469.1-469.7.

Conant, R. and J. T. Collins. 1991. A field guide to reptiles and amphibians:eastern and central North America. Third edition. Houghton Mifflin Co., Boston, Massachusetts. 450 pp.

Palmer, W. M., and A. L. Braswell. 1995. Reptiles of North Carolina. North Carolina State Museum of Natural Sciences, University of North Carolina Press, Chapel Hill, North Carolina.

Webb, R. G. 1970. Reptiles of Oklahoma. University of Oklahoma Press, Norman. 370 pp.

Behler, J. L., and F. W. King. 1979. The Audubon Society field guide to North American reptiles and amphibians. Alfred A. Knopf, New York. 719 pp.

Martof, B. S., W. M. Palmer, J. R. Bailey, and J. R. Harrison, III. 1980. Amphibians and reptiles of the Carolinas and Virginia. University of North Carolina Press, Chapel Hill, North Carolina. 264 pp.

Collins, J. T. 1982. Amphibians and reptiles in Kansas. Second edition. Univ. Kansas Mus. Nat. Hist., Pub. Ed. Ser. 8. xiii + 356 pp.

Hammerson, G. A. 1982. Amphibians and reptiles in Colorado. Colorado Division of Wildlife, Denver. vii + 131 pp.

Stebbins, R. C. 1985. A Field Guide to Western Reptiles and Amphibians. Second Edition. Houghton Mifflin Company, Boston, Massachusetts. xiv + 336 pp.

10 March 2005
 
This data was compiled and/or developed by the North Carolina GAP Analysis Project.

For more information please contact them at:
NC-GAP Analysis Project
Dept. of Zoology, NCSU
Campus Box 7617
Raleigh, NC 27695-7617
(919) 513-2853
www.basic.ncsu.edu/ncgap