Chaleuria

{{Short description|Extinct genus of Devonian plants}}

{{Use dmy dates|date=June 2020}}

{{Speciesbox

|fossil_range = {{geological range/linked|Middle Devonian}}

|taxon = Chaleuria cirrosa

|authority = H.N.Andrews, Gensel & W.H. Forbes

|parent_authority = H.N.Andrews, Gensel & W.H. Forbes

|image = Chaleuria cirrosa fossil land plant (Lower Devonian; New Brunswick, southeastern Canada) 1 (15518602081).jpg

|image_caption = Chaleuria cirrosa from the Lower Devonian of New Brunswick

}}

Chaleuria is a genus of extinct plants, found as fossils in New Brunswick, Canada. The rocks in which it was found are of Middle Devonian age ({{period span/brief|Middle Devonian}}). One species has been described, Chaleuria cirrosa. It was heterosporous, i.e. the spores were of two distinct sizes. Small spores (microspores) were in the size range 30–48 μm, large spores in the range 60–156 μm. Both kinds of spore were found in the same sporangium, although one size group tended to predominate in each sporangium. The original describers "tentatively" regarded the genus as a primitive member of the progymnosperms. In 2013, Hao and Xue listed the genus as a progymnosperm.