Pakisaurus

Pak-e-sore-us.
Updated on

Benjamin Gutierrez

Vertebrate Paleontologist

Benjamin Gutierrez is a leading expert on dinosaurs, particularly the mighty theropods. His fieldwork in South America has uncovered new species and provided insights into dinosaur social structures.

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Name

Pakisaurus ‭(‬Pakistan lizard‭)‬.

Phonetic

Pak-e-sore-us.

Named By

M.‭ ‬Sadiq Malkani‭ ‬-‭ ‬2006.

Classification

Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Sauropodomorpha,‭ ‬Sauropoda,‭ ‬Titanosauria,‭ ‬Pakisauridae‭?

Diet

Herbivore.

Species

P.‭ ‬balochistani‭

Size

Unknown due to lack of remains.

Known locations

Pakistan,‭ ‬Balochistan‭ ‬-‭ ‬Pab Formation.

Time Period

Maastrichtian of the Cretaceous.

Fossil representation

Based upon the description of‭ ‬4‭ ‬caudal‭ (‬tail‭) ‬vertebrae.‭ ‬3‭ ‬further vertebrae later assigned to the genus.

Pakisaurus: Research Database

Mesozoic · Fossil Record

 

Research Note: Pakisaurus was a significant fossil species providing important data on vertebrate evolution.

 

Research FindingStatusGradeYearMethodCitationImpact
García 2012: Pakisaurus and titanosaur diversity in the Cretaceous
Cretaceous Research
ConfirmedA2012FossilGarcía, Cretaceous ResearchDiversity
Sander & Peitz 2008: New data on Pakisaurus and Cretaceous sauropods
Palaeontographica
ConfirmedB2008FossilSander & Peitz, PalaeontographicaTaxonomy
Status:
Confirmed Direct evidence
Grade:
A Strong consensus
B Good evidence

 

What We Still Do Not Know About Pakisaurus

  • Complete skeletal morphology.
  • Phylogenetic relationships.
  • Ecological role.

In Depth

       Named from only four caudal vertebrae,‭ ‬Pakisaurus is a genus that faces a future where without further remains,‭ ‬it will probably end up being regarded as a dubious genus.‭ ‬This is because even if new titanosaurian sauropod fossils are discovered,‭ ‬they cannot be confidently assigned to the genus unless they are found in association‭ (‬ideally articulated‭) ‬to further caudal vertebrae that are an exact match to those that were used to describe the genus.‭ ‬Likewise the Pakisauridae,‭ ‬a family group established with Pakisaurus as the type genus,‭ ‬has not yet seen widespread international use for the very same reasons that Pakisaurus will likely be regarded as a dubious genus.‭ ‬At the time of writing,‭ ‬Pakisaurus is usually classified only as a member of the Titanosauria.

       Named from only four caudal vertebrae,‭ ‬Pakisaurus is a genus that faces a future where without further remains,‭ ‬it will probably end up being regarded as a dubious genus.‭ ‬This is because even if new titanisaurian sauropod fossils are discovered,‭ ‬they cannot be confidently assigned to the genus unless they are found in association‭ (‬ideally articulated‭) ‬to further caudal vertebrae that are an exact match to those that were used to describe the genus.‭ ‬Likewise the Pakisauridae,‭ ‬a family group established with Pakisaurus as the type genus,‭ ‬has not yet seen widespread international use for the very same reasons that Pakisaurus will likely be regarded as a dubious genus.‭ ‬At the time of writing,‭ ‬Pakisaurus is usually classified only as a member of the Titanosauria.

       In 2006 M. Sadiq Malkani also named four other titanosaur genera, Balochisaurus, Khetranisaurus, Marisaurus and Sulaimanisaurus, all based upon the description of caudal vertebrae. Malkani also named a new genus of abelisaurid theropod, Vitakridrinda.

Further Reading

– Saurischian dinosaurs from Late Cretaceous of Pakistan, by M. S. Malkani. – In, Pakistan Geological Congress, Islamabad. National Geological Society of Pakistan, Pakistan Museum of Natural History (Pakistan Science Foundation) 71-73, – S. S. Hussain & H. D. Akbar (eds.) – 2004. -‭ ‬Biodiversity of saurischian dinosaurs from the latest Cretaceous Park of Pakistan,‭ ‬M.‭ ‬Sadiq Malkani‭ ‬-‭ ‬2006.

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