.... gen., so far the oldest known representative of the family Euorthisinidae, and Lesserorthis n. gen. (Euorthisinidae?) are described, as well as the new species Euorthisina ? nazarenensis , Kvania mergli , Kvania lariensis , Kvania azulpampensis (with two subspecies), Kvania ? primigenia...

... Province faunas. Radiation was very significant for many brachiopod taxa during the period, with first appearances of the Plectambonitoidea (Taffiidae), several orthide families (Euorthisinidae, Tarfayidae and Anamalorthidae) and the earliest endopunctate orthide, the dalmanelloid Lipanorthis. Author...

...ENRIQUE VILLAS; ZARELA A. HERRERA; GLADYS C. ORTEGA Abstract Two brachiopod species of two of the earliest rhynchonelliformean families are described from one of the first studied Ordovician fossiliferous localities of northwestern Argentina. One is a new species of the family Euorthisinidae...

... even the closely related Euorthisinidae, although the latter family has not previously been reported from below the Tremadoc ( Williams & Harper, 2000 ). Also in Samples 44/7 and 44/10, there are both ventral exteriors and dorsal interiors of a much smaller form with a maximum width of 3.5 mm (Fig...