Genus: Amphitherium De BLAINVILLE, 1838
Etymology: Greek, amphi, “near, around, on both sides” and Greek, therion, “beast, mammal”: Ambigous beast.
= Amphigonus AGASSIZ, 1838
Etymology:
= Amphitylus OSBORN, 1888
Etymology:
= Botheratio-thrium CHALSWORTH, 1838
Etymology:
= Botheratiotherium BLAINVILLE, 1838
= Heterotherium BLAINVILLE, 1838 non FISCHER de WALDHEIM, 1822
Etymology:
= Thylacotherium VALENCIENNES, 1838
Etymology:

Species: prevostii (MEYER, 1832) De BLAINVILLE, 1838
Etymology:
= Didelphis prevostii MEYER, 1832
= Thylacotherium prevostii VALENCIENNES, 1838

Holotype: BMNH 36822

Locality: Stonesfield slate, Stonesfield, Oxfordshire County, England, Southern United Kingdom.

Horizon: Stonesfield.

Biostratigraphy:

Age: Middle Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material: Part of right ramus, internal aspect, with LP4 and LM1-5.

Referred material:

BMNH M2298: Cast of Oxford specimen I.

BMNH M2299: Cast of Oxford specimen II.

BMNH M5967: Model, enlarged 8 times, of Oxford Specimen I.

University of Oxford.

I: Left ramus, internal aspect, with LP1-4 and LM1-6.

III: Left ramus, internal aspect with LP3-4, and LM6-7, and much of the mandible preserved.

 

= Amphityles oweni OSBORN, 1888
Etymology:
= Amphitherium oweni (OSBORN, 1888) GOODRICH 1894

Holotype: University of Oxford II.

Locality: Stonesfield Slate, Stonesfield, Oxfordshire County, England, Southern United Kingdom.

Horizon: Stonesfield.

Biostratigraphy:

Age: Middle Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material: Right ramus in external aspect, with LI1-3, base of canine, and based of broken crowns of all premolars and molars.

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Species: rixoni BUTLER & CLEMNS, 2001
Etymology: In honor of the late Mr. Arthur Rixon who prepared the specimen and made it fully available for study.

Holotype: BMNH 36822

Locality: Stonesfield, Oxfordshire County, England, Southern United Kingdom.

Horizon: Stonesfield Slate Facies, Taynton Limestone Formation.

Biostratigraphy:

Age: Middle Bathonian Stage, Middle Dogger Epoch, Middle Jurassic.

Material: A right dentary m/1-t, p/5, and alveoli of p/1-4.