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Madtsoia is an
extinct genus of
madtsoiid snakes. It is
known from the
Eocene of
Argentina (M. bai), the
Paleocene of
Brazil (M. camposi), the Late Cretaceous...
- Formations), Libya)
Madtsoia Simpson, 1933
Madtsoia bai Simpson, 1933 (Paleogene,
Early Eocene Sarmiento Formation; Argentina)
Madtsoia cf. M. bai (Simpson...
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extinct snake clade Madtsoiidae as the
sister taxon to the
clade formed by
Madtsoia pisdurensis (Late
Cretaceous India) and
Gigantophis garstini (Late Eocene...
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Haasiophis Pachyophis Pachyrhachis Madtsoiidae Alamitophis Gigantophis Madtsoia Menarana Nidophis Powellophis Sanajeh Vasuki Wonambi Yurlunggur Dinilysiidae...
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Haasiophis Pachyophis Pachyrhachis Madtsoiidae Alamitophis Gigantophis Madtsoia Menarana Nidophis Powellophis Sanajeh Vasuki Wonambi Yurlunggur Dinilysiidae...
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Haasiophis Pachyophis Pachyrhachis Madtsoiidae Alamitophis Gigantophis Madtsoia Menarana Nidophis Powellophis Sanajeh Vasuki Wonambi Yurlunggur Dinilysiidae...
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bodied and
gigantic members of the
group like Gigantophis, Wonambi, and
Madtsoia. A
clade with
similar genus composition,
although lacking Powellophis,...
- burrow,
hoping to keep them safe from
predators like
Masiakasaurus and
Madtsoia. A pack of
Imperobator pursue a
Morrosaurus onto a
frozen lake. A male...
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Cenomanian to
Maastrichtian France Netherlands Spain †
Madtsoia †
Madtsoia madagascariensis †
Madtsoia pisdurensis Campanian to
Maastrichtian Madagascar India...
- Australia's
oldest known snakes: Patagoniophis, Alamitophis, and cf.
Madtsoia (Squamata: Madtsoiidae) from the
Eocene of Queensland.
Memoirs of the Queensland...