- plesiomorph + -ic (Wiktionary)
“You will get larger subsets of traits that contain all plesiomorphic traits plus synapomorphic traits that form grouping of larger subsets of taxa in the clade.”
“So cladistics is a reductive method, stripping a defined set of taxa, that have for sure one trait in common, of all distinguishing, autapomorphic traits to arrive at sets of plesiomorphic traits that are common to all taxa in the monophylitic clade.”
“Nimbacinus dicksoni, a plesiomorphic thylacine (Marsupialia: Thylacinidae) from Tertiary deposits of Queensland and the Norhtern Territory.”
“Interbreeding is plesiomorphic; not interbreeding is apomorphic.”
“And the pineal eye "third eye" is plesiomorphic for amniotes.”
“The authors suggest that what they observed may be the ancestral plesiomorphic state of a character that evolved further in the Pacific endodontids.”
“Incipient parental care in Discus - A plesiomorphic state of a truly endodontid character?”
“Something can remain unchanged, in which case it remains underived (plesiomorphic), or it can change, in which case it is derived (apomorphic).”
“Our inability to examine the neural characters of a relevant outgroup rhipidistians may result in many sarcopterygian plesiomorphic characters being interpreted as apomorphic characters, due to the wide distribution of paedomorphic characters among living sarcopterygians and their possible resemblance to plesiomorphic characters present in living outgroups that can be examined.”
“However, all five characters may be plesiomorphic for bony fishes.”
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This quickly got bigger and weirder than originally intended, so now it's housing terms that relate to the study of dinosaurs and other prehistoric creatures. See also Dinosaurs, Pterosaurs, Ichthy...
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