-
Protopsephurus is an
extinct genus of
paddlefish containing the
single species Protopsephurus liui,
known from the Yixian,
Jiufotang and
Huajiying formations...
-
added in
Hilton et al. (2023):
genus †
Protopsephurus Lu, 1994 (Early Cretaceous, China)
species †
Protopsephurus liui Lu, 1994
genus †
Pugiopsephurus Hilton...
- over 190
million years ago. The
oldest paddlefish fossil is that of
Protopsephurus from the
Early Cretaceous of China,
dating to
around 120
million years...
- to 162 (195–137)
million years ago. The
oldest known paddlefish is
Protopsephurus from the
Early Cretaceous of
China around 120
million years ago, while...
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Polyodontidae †Crossopholis †Paleopsephurus †Parapsephurus
Polyodon †
Protopsephurus †Psephurus †Pugiopsephurus
Acipenseridae Acipenser †Anchiacipenser †Engdahlichthys...
-
which includes all
polyodontids other than the most
primitive genus Protopsephurus. Like
Psephurus and
other extinct paddlefish genera, the
genus was likely...
-
combination of
characters which suggests that it is more
derived than
Protopsephurus, but is more
basal than Crossopholis, Polyodon, or Psephurus. Relationships...
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Polyodontidae †Crossopholis †Paleopsephurus †Parapsephurus
Polyodon †
Protopsephurus †Psephurus †Pugiopsephurus
Acipenseridae Acipenser †Anchiacipenser †Engdahlichthys...
-
Ordosemys (a
prehistoric species of turtle)
Palaeocambarus (a crawfish)
Protopsephurus (an
ancient species of paddlefish)
Psittacosaurus preserved in combat...
-
Polyodontidae †Crossopholis †Paleopsephurus †Parapsephurus
Polyodon †
Protopsephurus †Psephurus †Pugiopsephurus
Acipenseridae Acipenser †Anchiacipenser †Engdahlichthys...
