This trace fossil was assigned to Didymaulichnus Young, 1972 (e.g., Crimes, 1970; Knaust, 2004), which mostly smooth, bilobate
3e, f) BEP group: Bambusoideae Mostly transverse-unlobed, transverse- -Arundinarieae bilobate
, with pair of caudal rami near posterior end in anal sinus.
House 8, a large bilobate
semi-subterranean structure, dates approximately between A.D.
Apical bulb bilobate
. Chaetotaxy of antennae as in Table 1b.
The 10th tergite is clearly bilobate
, with rounded apices delimiting a narrow concavity (Figs 32, 33).
Notothyrial platform narrows anteriorly and merges with the median septum on elevated part of the valve floor; cardinal process granulated; dental plates divergent, ventral muscle field large, bilobate
Abdomen: Tergal plate longer than wide, the longitudinal ridge of thorax continues along mtg III-VI; lateral sclerites with punctured oval depressions; deltg II + III not fused, lateral margins of deltg II-VII reflexed, their posterior margins raised, pilose and with a distinctly posterolaterally projecting tubercle; metapleural scent gland canais straight and directed upward and visible from above as a split oval elevation; mtg VII with a median elevation and 2 vertical projections on posterior margin; tergite VIII bilobate
, visible tergites IX and X tricuspidate.
The teeth from La Cantalera further display bilobate
denticles, a character cited exclusively in a carcharodontosaurid from the Early Cretaceous of South America (Novas et al, 2005).
It is a bilobate
sebaceous organ, variable both in shape and size (Lucas and Stettenheim, 1972; Sawad, 2006), located dorsally between the fourth caudal vertebrae and the pygostile.
13); sternite IV bilobate
posteriorly; sternites III-IV, VIVII with very few setae; sternite V densely hirsute medially, with a much reduced posterior median smooth area, a narrow transverse; spiracles linear.