Citations:claviform

adjective

 * 1818, William Jackson Hooker, Musci Exotici; Containing Figures and Descriptions of New or Little Known Foreign Mosses and Other Cryptogamic Subjects:
 * was given a Jungermannia which, like the present figure, had saccate or hollow claviform appendages, both upon the lesser lobe of the leaves and upon the stipules.

club-shaped

 * 1816(?), Robert Jameson, A Treatise on the External, Chemical, and Physical..., page 91:
 * Claviform is the reverse of stalactitic; it is composed of club-shaped parallel rods, which adhere by their thin extremities

P-shaped

 * 2016, A George, "Hidden symbols", in New Scientist:
 * “Of course they mean something,” says French prehistorian Jean Clottes. “They didn't do it for fun.” The multiple repetitions of the P-shaped claviform sign in France's Niaux cave “can't be a coincidence”, he argues.
 * 2020, Gudrun Wolfschmidt, Maß und Mythos, Zahl und Zauber - Die Vermessung von Himmel und Erde: Tagung der Gesellschaft für Archäoastronomie in Dortmund 2018. Nuncius Hamburgensis; Band 48, tredition (ISBN 9783748221920):
 * Among the inventory of cave paintings, claviform signs, whose shape is reminiscent of the letter &#39;P&#39; in the Latin alphabet (or the reverse form), form a rather distinctive group.

noun

 * 2012, R Bégouën, C Fritz, G Tosello, Parietal Art and Archaeological Context:
 * In front of the observer, the end of this tunnel-shaped passage has a series of claviforms (a characteristic geometric form that can be described as a kind of shouldered “sign”) aligned on either side Another series includes at least three claviforms and three bars

key- or club-like P shape

 * 1) * 2016, Mark Pizzato Ph.D., Beast-People Onscreen and in Your Brain: , ABC-CLIO (ISBN 9781440844362), page 69:
 * Moving into the depths one finds: triangles (perhaps akin to the vulva or hoof marks in Tito Bustillo), bison and a horse that involve the natural concave surfaces, abstract outlines and repeated “claviforms” (key or club shapes like the letter “P”),

P shape

 * 1) * 2018, DG Maidagan, "New Insights into the Study of Paleolithic Rock Art: Dismantling the “Basque Country Void”", in the Journal of Anthropological Research:
 * This unique find for the Cantabrian region reflects themes (felines), conventions (use of scraping to show fur), and signs (P-shaped claviforms) that are all more typical of French Pyrenean art than that of northern Spain.

key-like shape

 * 1) * 1996, Andrew Lock, Charles R. Peters, Handbook of Human Symbolic Evolution, Oxford University Press
 * The so-called &#39;signs&#39; were originally given names that imply shape, such as 'roof-like &#39; (tectiforms) or 'key-like' (claviforms), although many were named in more obviously interpretative ways, such as 'wounds', 'traps', or 'huts'.