Therapsida
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Concurrent Range Zone , concurrent range zone Condylarthra , Condylarthra (cohort Ferungulata, superorder Protoungulata) An extinct order comprising seven families of primitive ungulates, including some that re… Range , range / rānj/ • n. 1. the area of variation between upper and lower limits on a particular scale: the cost is thought to be in the range of $1-5 mill… Synapsids , Skip to main content
Synapsids
Synapsida (mammal-like reptiles; subphylum Vertebrata, class Reptilia) A subclass of reptiles which includes the Pelyc… Range Zone , range zone Unit of strata defined by the presence and time range of a particular fossil taxon. A range zone comprises the entire vertical and horizon… Progymnospermopsida , Progymnospermopsida (progymnosperms) The ancestors of the gymnosperms, which arose in the Devonian and dwindled to extinction in the latter part of t…
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Therapsids
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Therapsids