For instance, a single species of Trigonia
, a great genus of shells in the secondary formations, survives in the Australian seas; and a few members of the great and almost extinct group of Ganoid fishes still inhabit our fresh waters.
The limestone beds are composed of bivalve bioclastic grains, mostly with oyster and Trigonia
shells, and are bioturbated and locally sandy.
Los individuos fueron criados individualmente y alimentados con diferentes plantas hospederas (Annona purpurea, Cordia alliodora, Inga vera, Quercus oleoides, Paullinia cururu, Cydista heterophylla, Trigonia
rugosa y Calycophyllum candidissimum), para determinar si el tipo de dieta ejercia alguna influencia sobre la microbiota intestinal.
Aubl., 1775.--Validated by a description in French.
Fossils that outline the shapes of a Trigonia
clam and an echinoid were also taken from the pit.
tonduzii are the totals for Trigonia
fulviventris, the single abundant pollinator species observed, and represent a single flowering period (8 days of observation, 38 h total, during peak flowering).
The staminodialia type of nectaries (or Trigonia
type) correspond with staminodes that are more strongly associated with the androecium.