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Here is a list of species found with the tag "Sphenacodontidae".
Click here for a Full Listing of all species in the PaleoDex.
A (0 species)
B (1 species)
Bathygnathus - Early Permian, 270 Ma
C (2 species)
Ctenorhachis - Early Permian, Artinskian
Ctenospondylus - Early Permian Artinskian-Kungurian
D (1 species)
Dimetrodon - Cisuralian, 295-272 Ma
E (0 species)
F (0 species)
G (0 species)
H (0 species)
I (0 species)
J (0 species)
K (0 species)
L (0 species)
M (1 species)
Macromerion - Late Carboniferous 304.2-299 Ma
N (0 species)
O (0 species)
P (0 species)
Q (0 species)
R (0 species)
S (2 species)
Secodontosaurus - Cisuralian, 285-272.3 Ma
Sphenacodon - Pennsylvanian to Cisuralian, 300-280 Ma
T (0 species)
U (0 species)
V (0 species)
W (0 species)
X (0 species)
Y (0 species)
Z (0 species)
PaleoCodex is a weekend hack by Saurav Mohapatra