Description

Diagnosis. Small, fairly slender Austrognatharia (mean length 738 µm, width 96 µm; index 8.40; see Table 3). Basal plate 6.11 µm long, 20.44 µm wide (index 0.30), with inconspicuous median but pronounced lateral lobes; with at least 8 uneven-sized teeth of which the median and the lateral pair are largest. Jaws 20.78 µm in length, with a strong terminal tooth; dorsal tooth row with two teeth sharing a single root, ventral row with 3 – 6 unevensized teeth. Conuli small (12.80 µm long by 7.60 µm wide; index 1.76), with a shallow capitulum (length 2.55 µm; index 5.24). Conuli often appear as twins, and may have a flaring cingulum.

Common Names

Taxonomic Hierarchy

Kingdom: Animalia

Phylum: Gnathostomulida

Order: Bursovaginoidea

Family: Austrognathiidae

Genus: Austrognatharia

Species: Austrognatharia orientis Achatz & Sterrer, 2015