Docodontidae ( Marsh 1887 )

Sigogneau-Russell, Denise, 2003, Docodonts from the British Mesozoic, Acta Palaeontologica Polonica 48 (3), pp. 357-374 : 357-358

publication ID	https://doi.org/ 10.5281/zenodo.13345824
persistent identifier	https://treatment.plazi.org/id/BD5C0945-FFD4-FFC7-FC92-F954AAB84880
treatment provided by	Felipe
scientific name	Docodontidae ( Marsh 1887 )
status

Treatment

Family Docodontidae ( Marsh 1887) , Simpson, 1929 Genus Borealestes Waldman and Savage, 1972

Type species: Borealestes serendipitus Waldman and Savage, 1972 .

Revised diagnosis.—Lower molars closest to Haldanodon with a high main cusp, and a mesio−lingual cusp notably lower than the disto−lingual. Differs from Haldanodon by a slightly better development of the lingual cusps, and by the structure of the lower premolars. A lingual cingulum may be present (absent in Haldanodon ).

Borealestes serendipitus Waldman and Savage, 1972 Fig. 2A, B View Fig .

Holotype: BRSUG 20570 , left lower jaw with two premolars and four molars.

New molariforms.— BMNH J.58 (right posterior fragment), J.521 (left), J.610 (left), J.791 (left), J.841 (right posterior fragment), M 44301 (left, from Watton Cliff).?J.39 (right, milk?),?J.116, (right, milk?),?J.549, (right posterior fragment),?J.728 (right anterior fragment), J.869 (right, milk? but main cusp not oblique).

Distribution.—Locality UB 7111, Isle of Skye, Scotland, middle Bathonian; Clay Band, Kirtlington mammal bed in Forest Marble; upper Bathonian.

Revised diagnosis.—Lower molars with antero−basal crest well indicated and vertically oriented. No antero−main crest, hence lingual face of main cusp completely oblique on the axis of the tooth. “Ornamentation” of the enamellimited to a poste − rior sulcus. Lingual cingulid may be present posteriorly.