Masrasector
Masrasector is an extinct genus of hyainailouroid hyaenodont that lived in Afro-Arabia from the Bartonian to the Rupelian stages of the Eocene and Oligocene epochs.

Frantisek2112 · CC BY-SA 4.0 · via Wikidata/Commons. May be a photograph of a specimen, or an artist’s reconstruction — an interpretation of a skeleton, since colour and soft tissue are almost never preserved.
On record
Recorded, not inferred- Sits inside
- TeratodontinaePBDB
- Diet
- insectivorePBDB, for Theria
- Life habit
- scansorialPBDB, for Eutheria
- Motility
- actively mobilePBDB, for Osteichthyes
- Environment
- terrestrialPBDB, for Eutheria
Time the record covers
At least 6.6 million years on record.
The record covers at least 33.9 Mya to 27.3 Mya. No occurrence read is dated outside 41.03 Mya to 23.04 Mya.
6 occurrences of Masrasector on record, most of them in the Oligocene. Bar height is expected occurrences, not a count: each fossil is spread across the span it is dated to, so a tall narrow bar means tight dating and a low wide one means loose.
When
6 occurrencesThese are dates about fossils, not the animal: the record can only begin after it arose and end before it died out, so either end may reach further. Shares are expected occurrences: a fossil dated to a span is counted partly in each period it straddles. More on what this infers.
Found in
3 formations
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The named rock units Masrasector has been recovered from, largest first. Drawn where the rock is now, not where it formed. 1 occurrence has no formation on record, which is common for older literature.
Masrasector and its relatives
OligoceneWhere Masrasector and its relatives were recorded in the Oligocene.
Found in the same rock
111 taxa- Crocodylia3 sites
- Phiomia3 sites
- Phiomyidae3 sites
- Actinopterygii2 sites
- Anomaluridae2 sites
- Apterodon gaudryi2 sites
- Arsinoitherium2 sites
- Bunohyrax2 sites
- Hyainailourinae2 sites
- Insectivora2 sites
- Mammalia2 sites
- Metaphiomys2 sites
- Metaphiomys schaubi2 sites
- Phiomys andrewsi2 sites
- Propliopithecus haeckeli2 sites
- Saghatheriinae2 sites
- Talahphiomys lavocati2 sites
- Testudines2 sites
- Thyrohyrax meyeri2 sites
- Aframonius dieides1 site
- Akhnatenavus nefertiticyon1 site
- Anchomomyini1 site
- Anchomomys milleri1 site
- Anthracotheriidae1 site
The Paleobiology Database records 6 sites for Masrasector, and this reads all of them. The number is how many of those sites it was catalogued from too. The 24 sharing the most are listed.
This is not a list of everything alive at the time. It is only what has come out of the same ground as this animal and been written down.
Entered from
5 references- New Oligocene vertebrate localities from Northern Kenya (Turkana basin)2
- Craniodental and humeral morphology of a new species of Masrasector (Teratodontinae, Hyaenodonta, Placentalia) from the late Eocene of Egypt and locomotor diversity in hyaenodonts1
- New fossils of Hyaenodonta (Mammalia) from the Eocene localities of Chambi (Tunisia) and Bir el Ater (Algeria), and the evolution of the earliest African hyaenodonts1
- Première découverte d'un créodonte dans la péninsule Arabique : Masrasector ligabuei nov. sp. (oligocène inférieur de Taqah, formation d'Ashawq, sultanat d'Oman)1
- New carnivorous mammals from the Oligocene of Egypt1
Each of the 6 occurrences read was entered from one of these publications, ordered by how many each accounts for. This is not a search for papers mentioning the name. Entries link to doi.org where the Paleobiology Database holds an identifier, and to its own record where it does not. Relayed as the Paleobiology Database holds them, not checked against what they resolve to.
Media and terms
Media content2

Picture of Masrasector
- Source
- Wikidata/Commons
- Credit
- Frantisek2112
- Licence
- CC BY-SA 4.0
- Commercial use
- the licence allows it
Photography scan
- Source
- MorphoSource
- Licence
- not stated by the source
- Commercial use
- cannot be read from the licence given — check the record
- Specimen
- Masrasector nananubis · dpc:12157
The description on this site
- Source
- Wikipedia, “Masrasector”
- Licence
- CC BY-SA 4.0
This is what the site found, which is not the same as what exists.
Keep going
What may have been alongside itTeratodontinae through timeFormations of the OligoceneThe world it lived on
Occurrence data from the Paleobiology Database, CC BY 4.0. Simons and Gingerich 1974