Whatever we now know of the many precursors of modern marginalist and subjectivist economics, of Bernoulli, Dupuit, Gossen, J. B. Say, and Senior; and, even earlier, of Lottini, Davanzati, Montanari, and Galiani,
British political economy
at the eve of the Marginalist Revolution was Ricardian in approach. Be this because of Ricardo's continued intellectual dominance, or the recrudescence of Ricardian thinking effected by the appearance of J. S. Mill's
Principles, British economics especially was largely ignorant of these earlier insights. Ricardian classical political economy was
macroeconomics by and large.
What was lacking in Ricardian theory was precisely a theory of choice and demand, a non-materialist theory of costs, and a consistent marginalism and subjectivism in approach. In short, Ricardian microeconomics was a skeleton insofar as it existed. Suffice to say, Ricardian value theory was at the root of this.