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"Somewhat unexpectedly, both pairs of premaxillary teeth project anteriorly and laterally at the base, implying a procumbent nature atypical of tylosaurines," the study reads.

A procumbent, prostrate or sometimes creeping shrub; scale-like leaves acute; berry on short recurved peduncles, 3–5´´ in diameter.—Rocky banks, borders of swamps, etc.,

Incisors not rooted but continuously growing; those of the upper jaw curved and directed downwards; those of the lower straight and procumbent.

Skull: Larger in every measurement taken; premaxillae extended farther posteriorly to nasals; extension of supraoccipital posterior to lambdoidal suture markedly less; tympanic bullae actually as well as relatively smaller; upper incisors longer and more procumbent.

Leaves.—Mostly alternate on the flowering stems, but smaller and broader ones often opposite or whorled on the procumbent shoots; linear; smooth.