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Pseudopolycentropodidae is an extinct family of
scorpionflies Mecoptera (from the Greek language, Greek: ''mecos'' = "long", ''ptera'' = "wings") is an Order (biology), order of insects in the superorder Holometabola with about six hundred species in nine Family (biology), families worldwide. Mecopterans a ...
known from the
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 ...
. Fossils are known from the Middle Triassic (
Anisian In the geologic timescale, the Anisian is the lower stage (stratigraphy), stage or earliest geologic age, age of the Middle Triassic series (stratigraphy), series or geologic epoch, epoch and lasted from million years ago until million years ag ...
) to the early Late Cretaceous (
Cenomanian The Cenomanian is, in the International Commission on Stratigraphy's (ICS) geological timescale, the oldest or earliest age (geology), age of the Late Cretaceous epoch (geology), Epoch or the lowest stage (stratigraphy), stage of the Upper Cretace ...
). It is part of Mesopsychoidea, a group of scorpionflies with siphonate
proboscis A proboscis () is an elongated appendage from the head of an animal, either a vertebrate or an invertebrate. In invertebrates, the term usually refers to tubular arthropod mouthparts, mouthparts used for feeding and sucking. In vertebrates, a pr ...
. They are suggested to have been nectarivores, feeding off the liquid pollination drops and acting as pollinators for now extinct
insect pollinated Entomophily or insect pollination is a form of pollination whereby pollen of plants, especially but not only of flowering plants, is distributed by insects. Flowers pollinated by insects typically advertise themselves with bright colours, somet ...
gymnosperms The gymnosperms ( ; ) are a group of woody, perennial Seed plant, seed-producing plants, typically lacking the protective outer covering which surrounds the seeds in flowering plants, that include Pinophyta, conifers, cycads, Ginkgo, and gnetoph ...
such as
Bennettitales Bennettitales (also known as cycadeoids) is an extinct order of seed plants that first appeared in the Permian period and became extinct in most areas toward the end of the Cretaceous. Bennettitales were amongst the most common seed plants of th ...
.


Systematics

* '' Dualula'' Lin et al. 2019 **''Dualula kachinensis'' Lin et al. 2019
Burmese amber Burmese amber, also known as Burmite or Kachin amber, is amber from the Hukawng Valley in northern Myanmar. The amber is dated to around 100 million years ago, during the latest Albian to earliest Cenomanian ages of the mid-Cretaceous period. Th ...
, mid Cretacoeus (
Albian The Albian is both an age (geology), age of the geologic timescale and a stage (stratigraphy), stage in the stratigraphic column. It is the youngest or uppermost subdivision of the Early Cretaceous, Early/Lower Cretaceous epoch (geology), Epoch/s ...
-
Cenomanian The Cenomanian is, in the International Commission on Stratigraphy's (ICS) geological timescale, the oldest or earliest age (geology), age of the Late Cretaceous epoch (geology), Epoch or the lowest stage (stratigraphy), stage of the Upper Cretace ...
) * '' Parapolycentropus'' Grimaldi and Rasnitsyn 2005 Burmese amber **''Parapolycentropus burmiticus'' Grimaldi and Rasnitsyn 2005 **''Parapolycentropus paraburmiticus'' Grimaldi and Rasnitsyn 2005 * '' Pseudopolycentropodes'' Grimaldi and Fraser 2005 **''Pseudopolycentropodes virginicus'' Grimaldi and Fraser 2005
Cow Branch Formation The Cow Branch Formation is a Late Triassic geologic Formation (geology), formation in Virginia and North Carolina in the eastern United States. The formation consists of Cyclostratigraphy, cyclical beds of black and grey Lacustrine deposits, lacus ...
, Virginia, Late Triassic (
Norian The Norian is a division of the Triassic geological period, Period. It has the rank of an age (geology), age (geochronology) or stage (stratigraphy), stage (chronostratigraphy). It lasted from ~227.3 to Mya (unit), million years ago. It was prec ...
) * '' Pseudopolycentropus'' Handlirsch 1906 Triassic-Late Jurassic **''Pseudopolycentropus daohugouensis'' Zhang 2005
Daohugou The Haifanggou Formation (), also known as the Jiulongshan Formation (), is a fossil-bearing rock deposit located near Daohugou () village of Ningcheng County, in Inner Mongolia, northeastern China. The formation consists of coarse conglomerates ...
, China, Middle Jurassic (
Callovian In the geologic timescale, the Callovian is an age and stage in the Middle Jurassic, lasting between 165.3 ± 1.1 Ma (million years ago) and 161.5 ± 1.0 Ma. It is the last stage of the Middle Jurassic, following the Bathonian and preceding the ...
) ** ''Pseudopolycentropus janeannae'' Ren et al. 2009 Daohugou, China, Callovian ** ''Pseudopolycentropus latipennis'' Martynov 1927
Karabastau Formation The Karabastau Formation () is a geological formation and lagerstätte in the Karatau Mountains of southern Kazakhstan whose strata date to the Middle to Late Jurassic. It is an important locality for insect fossils that has been studied since ...
, Kazakhstan, Late Jurassic ( Oxfordian) ** ''Pseudopolycentropus madygenicus'' Novokshonov 1997
Madygen Formation The Madygen Formation (Russian language, Russian: Madygen Svita) is a Middle Triassic, Middle–Late Triassic (Ladinian–Carnian) geologic formation and lagerstätte in the Batken Region, Batken and Osh Regions of western Kyrgyzstan, with minor ...
, Kyrgyzstan, Late Triassic (
Carnian The Carnian (less commonly, Karnian) is the lowermost stage (stratigraphy), stage of the Upper Triassic series (stratigraphy), Series (or earliest age (geology), age of the Late Triassic Epoch (reference date), Epoch). It lasted from 237 to 227.3 ...
) ** ''Pseudopolycentropus novokshonovi'' Ren et al. 2009 Daohugou, China, Callovian ** ''Pseudopolycentropus obtusus'' Bode 1953
Posidonia Shale The Posidonia Shale (, also called Schistes Bitumineux in Luxembourg) geologically known as the Sachrang Formation, is an Early Jurassic (Early to Late Toarcian) geological formation in Germany, northern Switzerland, northwestern Austria, souther ...
, Germany, Early Jurassic (
Toarcian The Toarcian is, in the International Commission on Stratigraphy, ICS' geologic timescale, an age (geology), age and stage (stratigraphy), stage in the Early Jurassic, Early or Lower Jurassic. It spans the time between 184.2 Megaannum, Ma (million ...
) ** ''Pseudopolycentropus perlaeformis'' Geinitz 1884 Green Series, Germany, Toarcian ** ''Pseudopolycentropus triangularis'' Handlirsch 1920
Charmouth Mudstone Formation The Charmouth Mudstone Formation is a Formation (geology), geological formation in England, dating to the Early Jurassic (Sinemurian–Pliensbachian). It forms part of the lower Lias Group. It is most prominently exposed at its type locality in cl ...
, UK, Early Jurassic (
Sinemurian In the geologic timescale, the Sinemurian is an age (geology), age and stage (stratigraphy), stage in the Early Jurassic, Early or Lower Jurassic epoch (geology), Epoch or series (stratigraphy), Series. It spans the time between 199.5 ±0.3 annu ...
), ''"''Green Series", Germany, Toarcian ** ''Pseudopolycentropus triasicus'' Papier et al. 1996
Grès à Voltzia The Grès à Voltzia is a geologic formation in France. It preserves fossils dating back to the Triassic period, more specifically the Anisian stage of the Middle Triassic epoch. It represents a lagerstatte that is well known for its palaeoflor ...
, France,
Röt Formation The Röt Formation or Rötton Formation (German for Röt Shale), or Upper Buntsandstein, is a geologic formation of the Buntsandstein in Germany. It preserves fossils dating back to the Middle Triassic Epoch (Anisian or Aegean or Bithynian in the ...
, Germany, Middle Triassic (
Anisian In the geologic timescale, the Anisian is the lower stage (stratigraphy), stage or earliest geologic age, age of the Middle Triassic series (stratigraphy), series or geologic epoch, epoch and lasted from million years ago until million years ag ...
) * '' Sinopolycentropus'' Shih et al. 2011 **''Sinopolycentropus rasnitsyni'' Shih et al. 2011 Daohugou, China, Callovian


References

{{Taxonbar, from=Q4047541
A dagger, obelisk, or obelus is a typographical mark that usually indicates a footnote if an asterisk has already been used. The symbol is also used to indicate death (of people) or extinction (of species or languages). It is one of the mo ...
Prehistoric insect families Triassic first appearances