Acrolepididae is an

extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...

Genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ...

referred to Acrolepididae existed from the Early

Carboniferous The Carboniferous ( ) is a Geologic time scale, geologic period and System (stratigraphy), system of the Paleozoic era (geology), era that spans 60 million years, from the end of the Devonian Period Ma (million years ago) to the beginning of the ...

period Period may refer to: Common uses * Period (punctuation) * Era, a length or span of time *Menstruation, commonly referred to as a "period" Arts, entertainment, and media * Period (music), a concept in musical composition * Periodic sentence (o ...

to the

Early Triassic The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between 251.9 Ma and Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic Series, which ...

epoch In chronology and periodization, an epoch or reference epoch is an instant in time chosen as the origin of a particular calendar era. The "epoch" serves as a reference point from which time is measured. The moment of epoch is usually decided b ...

. They were nektonic carnivores with a

fusiform Fusiform (from Latin ''fusus'' ‘spindle’) means having a spindle (textiles), spindle-like shape that is wide in the middle and tapers at both ends. It is similar to the lemon (geometry), lemon-shape, but often implies a focal broadening of a ...

body. Acrolepididae may be closely related with the Early

Mesozoic The Mesozoic Era is the Era (geology), era of Earth's Geologic time scale, geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Period (geology), Periods. It is characterized by the dominance of archosaurian r ...

Ptycholepididae. Acrolepis sedgwicki

Included genera and species

* Genus ''

Acrolepis ''Acrolepis'' (Ancient Greek for "tip scale") is an extinct genus of prehistoric marine bony fish that lived from the Famennian stage of the Devonian to the early Triassic epoch (geology), epoch. Some species from the Early Triassic of Tasmania ...

Agassiz Jean Louis Rodolphe Agassiz ( ; ) FRS (For) FRSE (May 28, 1807 – December 14, 1873) was a Swiss-born American biologist and geologist who is recognized as a scholar of Earth's natural history. Spending his early life in Switzerland, he recei ...

, 1843 ** ''Acrolepis frequens'' Yankevich, 1996 ** ''Acrolepis gigas''

Frič Frič is a Czechized German surname. Notable people with the surname include: * Alberto Vojtěch Frič, Czech botanist * Antonin Fritsch, Antonín Jan Frič ''(Fritsch)'', Czech paleontologist * Jaroslav Erik Frič, Czech poet * Martin Frič, Czec ...

, 1877 ** ''Acrolepis hamiltoni'' Johnston & Morton, 1890 ** ''Acrolepis hopkinsi'' M'Coy, 1848 ** ''Acrolepis hortonensis'' Dawson, 1868 ** ''Acrolepis''? ''laetus''

Lambe Lambe is a surname, and may refer to: * Anna Lambe, Canadian actress * Charles Lambe (1900–1960), Royal Navy admiral * Charles Laverock Lambe (1875–1953), Royal Air Force air marshal * Claire Lambe (artist) (born 1962), English-born Australian ...

, 1916 'Pteronisculus''? ''laetus''">Pteronisculus.html" ;"title="'Pteronisculus">'Pteronisculus''? ''laetus''** ''Acrolepis languescens'' Yankevich, 1996 ** ''Acrolepis ortholepis'' Ramsay Traquair">Traquair Traquair () is a small village and civil parishes in Scotland, civil parish in the Scottish Borders; Counties of Scotland, until 1975 it was in the county of Peeblesshire. The village is situated on the B709 road south of Innerleithen at . H ...

Included genera and species

References