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The Carboniferous rhabdopleurid graptolite closely resembling the extant species Rhabdopleura compacta Hincks.

Scientific explanation of the formation of the mountain.

Drzewo genealogiczne rodziny Jankowskich

Diagnosis, occurrence, images and references of the Jurassic species.

This species, a probable extant graptolite (according to some researchers), is regarded as a living fossil.

Yale University comprises three major academic components: Yale College (the undergraduate program), the Graduate School of Arts and Sciences, and the professional ...