extant

adj.

现存的，仍然存在的；

1. This law is ancient but still extant.
   这一法律古老但仍然有效。
2. This is the extant manuscript of the poem.
   这是现存的该诗的原稿。

The genetic legacy of Paleolithic Homo sapiens sapiens in extant Europeans: a Y chromosome perspective
A Classification for Extant Ferns
Building large trees by combining phylogenetic information: a complete phylogeny of the extant Carnivora (Mammalia).
The Phylogeny of the Extant Hexapod Orders
The Extant Phylogenetic Bracket and the importance of reconstructing soft tissues in fossils
When are Fossils better than Extant Taxa in Phylogenetic Analysis?
...and Palaeochiropteryx to extant bat lineages, ...
Phylogeny of seed plants based on all three genomic compartments: extant gymnosperms are monophyletic and Gnetales' closest relative...
Acoel Flatworms: Earliest Extant Bilaterian Metazoans, Not Members
The Phylogeny of the Extant Hexapod Orders : Volume 17, Number 2 (2001), pages 113–169