| Voltziales, Walchia, Lyginopteridales, Cheirolepidiaceae, Cordaitales|
Utrechtiaceae is an extinct family of trees related to modern conifers. This family dates back to the late Carboniferous and early Permian.
They were forest trees with almost horizontal standing leafy lateral shoots and with vertical tribes.They were generally small trees. At least with Utrechtia piniformis the side shoots are in whorls.
Like other Voltzialean plants they had compact ovulate cones bearing bilateral bract-scale complexes. The leaves are scale-like, arranged spirally and only a few millimeters long.
Utrechtiaceae include the following selected genera: Ernestiodendron Florin, 1934
Lebachiella S.V. Meyen, 1997
Ortiseia R. Florin, 1964
Moyliostrobus C.N. Miller & J.T. Brown, 1973 : known from the Lower Permian of Texas (Moyliostrobus texanum).
Utrechtia G.W. Rothwell & G. Mapes, 2003