-cardium

a combining form occurring in compounds that denote tissue or organs associated with the heart, as specified by the initial element:
myocardium; pericardium.

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Probably generalized from pericardium

The rock was a baked sandstone; in the pebbles of the creek I found the impressions of bivalves (one ribbed like Cardium).

They chiefly consist of the cardium edule, which appear to abound in the kitchen-middens of the Pas-de-Calais.

In Unio, Cardium, and Hyria, the foot is large and not byssiferous.

To that era belong the deep beds of oyster shells and Cardium edule, which are still found at the bottom of the fjord.

No mention is made of lateral teeth: was it then a veritable Cardium?

April 19, 2024tortuous

[tawr-choo-uhs ]

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