Anura incertae familiae

Liaobatrachus grabaui Ji et Ji, 1998

Anura incertae familiae

Early Cretaceous Yixian Formation, Jianshangou BedSihetun, Beipiao, Liaoning, China
Liaobatrachus grabaui Ji et Ji, 1998, a Cretaceous amphibian fossil from Sihetun.
Photo 1 · Liaobatrachus grabaui (from Dong et al., 2013). A1, A2. Holotype [(GMC) GMV 2126], dorsal view; B1, B2. Referred specimen (IVPP V 11525), dorsal view; C1-C3. Referred specimen [(NIGPAS) MV 77], dorsal view; D. Referred specimen (CYH 004), partial pelvic girdle. Scale bar = 2 cm
Family
Anura incertae familiae
Genus
Liaobatrachus
Authority
Ji et Ji, 1998
Original combination
Liaobatrachus grabaui
Age
Early Cretaceous Yixian Formation, Jianshangou Bed
Locality
Sihetun, Beipiao, Liaoning, China
Diagnosis
Compared with other species of Liaobatrachus, L. grabaui has longer total presacral vertebral column, relatively shorter hindlimbs, femur and tibiofibula subequal in length, maxilla with distinct palatine process, prepollex with single phalanx.
Remarks
Holotype (GMC) GMV 2126 has poor preservation. The species was originally assigned to Pelobatidae but later research shows it has presacral ribs and opisthocoelous centra, excluding it from Pelobatidae. 'Callobatrachus sanyanensis' is a junior synonym based on reexamination of IVPP V 11525.
Figure caption
Liaobatrachus grabaui (from Dong et al., 2013). A1, A2. Holotype [(GMC) GMV 2126], dorsal view; B1, B2. Referred specimen (IVPP V 11525), dorsal view; C1-C3. Referred specimen [(NIGPAS) MV 77], dorsal view; D. Referred specimen (CYH 004), partial pelvic girdle. Scale bar = 2 cm