ancestor

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ancestor

an early type of animal or plant from which a later, usually dissimilar, type has evolved
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in classic literature ?
We may often falsely attribute to correlation of growth, structures which are common to whole groups of species, and which in truth are simply due to inheritance; for an ancient progenitor may have acquired through natural selection some one modification in structure, and, after thousands of generations, some other and independent modification; and these two modifications, having been transmitted to a whole group of descendants with diverse habits, would naturally be thought to be correlated in some necessary manner.
There is not sufficient evidence to induce us to believe that mutilations are ever inherited; and I should prefer explaining the entire absence of the anterior tarsi in Ateuchus, and their rudimentary condition in some other genera, by the long-continued effects of disuse in their progenitors; for as the tarsi are almost always lost in many dung-feeding beetles, they must be lost early in life, and therefore cannot be much used by these insects.
They are a noble-looking race, these cave men of Pellucidar, and if our progenitors were as they, the human race of the outer crust has deteriorated rather than improved with the march of the ages.
When I speak of the "earliest accounts I possess of my progenitors," authentic information is meant only; for, like other races, we have certain dark legends that might possibly carry us back again to the old world in quest of our estates and privileges.
The embarkation, or shipment of my progenitors, whichever may be the proper expression, occurred in the height of the last general war, and, for a novelty, it occurred in an English ship.
"Yet, might I presume to say so, the gem would make a rare sepulchral lamp, and would display the glories of your lordship's progenitors more truly in the ancestral vault than in the castle hall."
Group 1, subsequently denoted as pBSSS, comprised 14 out of the 16 progenitor lines of BSSS plus both parents (Fe and IndB2) of one missing progenitor (F1B1).
Circulating Endothelial Progenitor Cells, Vascular Function, and Cardiovascular Health
Wood who is now at the University of Miami, will try to determine whether progenitor (immature) oligos or mature oligos are more effective at remyelinating the nervous system.
Release date- 28082019 - By successfully rejuvenating brain progenitor cells, researchers at UNIGE reveal an unsuspected role of the environment in setting cellular properties.
"We revealed the fine developmental trajectory of progenitor cells that have not been observed by a traditional approach," Jing Naihe, one of the lead researchers on the team at the Chinese Academy of Sciences, said in a Monday press release.
LOS ANGELES, Calif., August 6, 2019 -- The prostates of older mice contain more luminal progenitor cells capable of generating new prostate tissue than the prostates of younger mice, UCLA researchers have discovered.