Tibikoia Hatai, Kotaka et Noda, 1970

Diagnosis (Häntzschel, 1975, modified). Cluster of oblong faecal pellets, cylindrical, sometimes ovoid or short rodlike-shaped; circular in cross section, both ends blunty and flatly rounded, surface smooth. Pellets are grouped in clusters, without any peculiar orientation. [Following the recommendations of Bertling et al. (2006) and Bertling in Miller (2007), we have cut out the mentions of the size of individual pellets and of the possible producer, a worm, of the diagnosis].