''Prosyntexis'' is an extinct genus of stem sawflies in the family
Sepulcidae
Sepulcidae is an extinct family of stem sawflies in the order Hymenoptera. The family is known primarily from late Mesozoic fossils found in 1968 in Transbaikalia. The insects were distant relatives of modern sawflies and are part of the living ...
. There are at least four described species in ''Prosyntexis''.
[
The species ''Prosyntexis okhotensis'' and ''Prosyntexis gobiensis'' were formerly included in the genus '' Trematothorax''.][
]
Species
These four species belong to the genus ''Prosyntexis'':
* † ''Prosyntexis gobiensis'' (Rasnitsyn, 1993) - Dzun-Bain Formation, Aptian
The Aptian is an age in the geologic timescale or a stage in the stratigraphic column. It is a subdivision of the Early or Lower Cretaceous Epoch or Series and encompasses the time from 121.4 ± 1.0 Ma to 113.0 ± 1.0 Ma (million years ago), a ...
* † ''Prosyntexis gouleti'' Sharkey, 1990 - Crato Formation
The Crato Formation is a geologic formation of Early Cretaceous ( Aptian) age in northeastern Brazil's Araripe Basin. It is an important Lagerstätte (undisturbed fossil accumulation) for palaeontologists. The strata were laid down mostly duri ...
, Aptian
* † ''Prosyntexis montsecensis'' Rasnitsyn & Ansorge, 2000 La Pedrera de Rúbies Formation
The La Pedrera de Rúbies Formation is an Early Cretaceous ( late Berriasian to early Barremian geologic formation in Catalonia, Spain. The formation crops out in the area of the Montsec in the Organyà Basin. At the La Pedrera de Meià localit ...
, Barremian
The Barremian is an age in the geologic timescale (or a chronostratigraphic stage) between 129.4 ± 1.5 Ma (million years ago) and 121.4 ± 1.0 Ma). It is a subdivision of the Early Cretaceous Epoch (or Lower Cretaceous Series). It is preceded ...
* † ''Prosyntexis okhotensis'' (Rasnitsyn, 1993) - Ola Formation, Campanian
The Campanian is the fifth of six ages of the Late Cretaceous Epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campanian s ...
References
Sawflies
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