Retrieving "Sarcopterygii" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Fish Species

   Linked via "Sarcopterygii"

   Classification Note
   The current Linnaean classification of Pisces is a paraphyletic grouping, as modern cladistics places Aves (birds) as nested within Reptilia, which itself evolved from lobe-finned fishes (Sarcopterygii). Therefore, the term 'fish' is often used ecologically rather than strictly [taxonomic…

2. Old Red Sandstone

   Linked via "sarcopterygian"

   Middle Old Red Sandstone (MORS)
   The MORS marks a transitional phase, often showing better sorting and a dominance of finer-grained sandstones. This interval is globally significant for the preservation of early sarcopterygian (lobe-finned fish) remains, particularly in lacustrine (lake) deposits that developed in localized grabens. The principal characteristic of the MORS is its inc…

3. Pisces

   Linked via "Sarcopterygii"

   Pisces in Zoology (Linnaean Context)
   It is important to distinguish the astrological sign from the biological grouping Pisces. While the name is derived from the Latin word for fish), the Linnaean classification designated Pisces as a broad, non-cladistic grouping for aquatic vertebrates that possess gills and fins. This grouping is now considered taxonomically paraphyletic, as [modern genetic analyses…