The phrase "in some extant" is not correct; it should be "in some extent." You can use it when discussing the degree or level to which something is true or applicable.
Example: "The theory is valid in some extent, but further research is needed."
Alternatives: "to some degree" or "to a certain extent."
The discovery of apparent pathologies (the results of disease or injury) in consistent locations of the frills supports the possibility that Triceratops may have engaged in intraspecific combat, as is seen in some extant horned animals.
This is indicated both by explicit references in later commentators and by the unacknowledged exploitation of his work in some extant later commentaries on the same texts.
The early Permian woodland is self-thinning; its volume versus density relationship shows a self-thinning exponent between − 1.25 and − 1.5, within the range seen in some extant plant stands (− 1.21 to − 1.7).
Transverse fission has been reported in some extant hydrozoans and is present in at least four orders of anthozoans [51].
This specimen displays three horseshoe shaped structures (Fig. 8) that may be folded gonads, similar to those found in some extant semaeostomes [29].
However, this elongate morphology of metacarpal I is also present in the extinct stem penguin, Icadyptes salasi, and at least embryonically in some extant penguins ([85]: p. 145; Figures 12, 15).
This is in contrast to some extant basal angiosperms with style-less, conduplicated carpels where the receptive secretory/stigmatic hairs extend to the inner surface of the carpel and pollen grains are received on two independent papillate margins known as stigmatic crests (Bailey and Swamy 1951; Endress 2005).
Some extant variation in genetic codes appears to be adaptive: codon reassignments in mitochondria, for example, occur in response to selective pressures on the amino acid composition of proteins [ 20].
In some rare extant species belonging to reasonably fecund genera, TE-Thrust appears to now have little to do with ongoing adaptive potential or evolutionary potential, as such species currently have genomes that are largely devoid of TEs.
Furthermore, range contractions in some still-extant Malagasy primates have been extensive since the Pleistocene [32], [47], [48], presenting a problem for the interpretation sister species that appear to diverge in niche characteristics today.
This results in limited phylogenetic signal left in extant taxa to trace their relationships.
