Is a Kumquat a member of the Tetracentron genus?
Kumquat Kumquats (or cumquats in Australian English; ; or ) ("Citrus japonica") are a group of small fruit-bearing trees in the flowering plant family Rutaceae. They were previously classified as forming the now historical genus "Fortunella", or placed within "Citrus sensu lato".
Tetragonoceratidae The Tetragonoceratidae is a small family of nautilitids constituting a part of the superfamily Tainocerataceae in which shells are coiled with a generally quadrate whorl section. Coiling is either gyroconic or evoluute with a slight dorsal impression. Flanks diverge from the umbilical to the ventral shoulders so as to make the whorl sections widest close to the venter. Nodes made develop on the flanks and shoulders. The siphuncle is tubular, typically found near the venter. Sutures are with lateral lobes and may possess dorsal and ventral lobes as well.