neo-
Prefix meaning 'new'.
Used in 1 profile
Ichthyological terms, not general ones.
Prefix meaning 'new'.
Used in 1 profile
Form of paedomorphism characterised by retention of juvenile features in an adult individual via slowed or delayed maturation.
Of or relating to a zoogeographical region consisting of South America plus the portion of North America lying south of the tropic of Cancer.
Used in 65 profiles
A single specimen designated as the name-bearing type of a species subsequent to its description, most often when the holotype, lectotype, and syntype no longer exist.
Used in 14 profiles
Current and most recent of the three Phanerozoic geological eras, immediately following the Mesozoic Era and covering the period from 65.5 mya to the present. Also known as the 'Age of Mammals' due to the great diversification occurring among that group, it's divided into three periods: Paleogene, Neogene, and Quaternary; and seven epochs: Paleocene, Eocene, Oligocene, Miocene, Pliocene, Pleistocene, and Holocene.
Used in 8 profiles
Rigid, dermal structure resembling a tooth or bristle found in certain fish taxa, notably many neotropical catfishes. Also known as a dermal tooth and has a structure comparable to that of an oral tooth, with dentine surrounding a central pulp cavity covered by a superficial layer of enamel or similar material. Often more pronounced or extensively-distributed in males than females.
Used in 34 profiles
Phylogenetic state in which juvenile or larval characters are retained in and throughout the adult stage. May arise via neoteny or progenesis.
A transverse, hollow, pouch-like structure opening anteriorly and located on the ventral surface, immediately posterior to the mouth, in some members of certain balitorid genera, e.g., Gastromyzon, Neogastromyzon.
Used in 13 profiles