Fig. 10
From: Halysis Høeg, 1932 — an ancestral tabulate coral from the Ordos Basin, North China
Morphology of (a-c) the ‘multiple-tube’ Halysis reproduction and (d) the ‘single-tube’ Halysis reproduction. a Parallel-juxtaposed, partly-branching tubes, the most common type observed in the studied Laoshidan section; b Partly-branching tubes similar to a but curve at differing degrees; c Irregularly-curve side-contact tubes. Note that the new bud extruding from the contact between two adjacent tubes; d Bifurcation forming two new branches at an angle