[D] Australovenator wintonensis [sG] [T]
Describer
Hocknull, White, Tischler, Cook, Calleja, Sloan & Elliott, 2009
Time
Cretaceous Early Albian
Classification
Saurischia Theropoda Tetanurae Carnosauria [Allosauroidae] Incertae Sedis
Diet
Carnivore
Fossilsite
Winton Formation, AODF 85, ‘‘Matilda Site’’, Elderslie Station, approximately 60 km north-west of Winton, central Queensland, Australia
Info
Holotype: AODF 604: Nine isolated teeth; left dentary; right and left dorsal ribs and rib fragments; right and left gastralial ribs and fragments; partial right ilium; both ulnae; right radius; manus metacarpals, phalanges and unguals; right femur; both tibiae; right fibula; right astragalus; metatarsals, phalanges and unguals.
Etymology: Austral, australis – Latin, meaning southern in reference to the locality being in the Southern Hemisphere, Australia. Venator – Latin for hunter. In reference to its carnivorous diet / From the township of Winton
Diagnosis: A medium-sized allosauroid, with the following unique association of features. Dentary gracile with sub-parallel margins; rounded dentary symphysis; articular brace (or ‘chin’) absent. 18 tooth loci; alveolus 1 quadrangular; alveoli 2–6 and 12– 15 circular; alveoli 7–11 and 16–18 labio-lingually compressed. Interdental plates fused together along the entire length of the dentary. Primary neurovascular foramina row parallel to dorsal margin of dentary, not deflected ventrally. Dorsal ribs with pneumatic cavities. Gastralia unfused with tapered distal ends. Ulna with straight caudal margin, inflated olecranon process; lateral groove along diaphysis (autapomorphic); round and discontinuous lateral tuberosity. Femur with head directed dorsally in a cranio-medially direction; lesser trochanter developed proximally to the level of the greater trochanter (autapomorphic); distal extensor groove deep and narrow lacking cruciate ridge. Cranio-lateral process of tibia with latero-ventral process; lateral malleolus extends distal of medial malleolus. Proximal articular surface of fibula bevelled cranially (autapomorphic). Astragalus with tall ascending process;medially expanded medial condyle; superior and inferior grooves present on cranial face; cranio-lateral process projects from proximo-cranial margin of lateral condyle. Metatarsals elongateand gracile.
Hocknull, White, Tischler, Cook, Calleja, Sloan & Elliott, 2009
Time
Cretaceous Early Albian
Classification
Saurischia Theropoda Tetanurae Carnosauria [Allosauroidae] Incertae Sedis
Diet
Carnivore
Fossilsite
Winton Formation, AODF 85, ‘‘Matilda Site’’, Elderslie Station, approximately 60 km north-west of Winton, central Queensland, Australia
Info
Holotype: AODF 604: Nine isolated teeth; left dentary; right and left dorsal ribs and rib fragments; right and left gastralial ribs and fragments; partial right ilium; both ulnae; right radius; manus metacarpals, phalanges and unguals; right femur; both tibiae; right fibula; right astragalus; metatarsals, phalanges and unguals.
Etymology: Austral, australis – Latin, meaning southern in reference to the locality being in the Southern Hemisphere, Australia. Venator – Latin for hunter. In reference to its carnivorous diet / From the township of Winton
Diagnosis: A medium-sized allosauroid, with the following unique association of features. Dentary gracile with sub-parallel margins; rounded dentary symphysis; articular brace (or ‘chin’) absent. 18 tooth loci; alveolus 1 quadrangular; alveoli 2–6 and 12– 15 circular; alveoli 7–11 and 16–18 labio-lingually compressed. Interdental plates fused together along the entire length of the dentary. Primary neurovascular foramina row parallel to dorsal margin of dentary, not deflected ventrally. Dorsal ribs with pneumatic cavities. Gastralia unfused with tapered distal ends. Ulna with straight caudal margin, inflated olecranon process; lateral groove along diaphysis (autapomorphic); round and discontinuous lateral tuberosity. Femur with head directed dorsally in a cranio-medially direction; lesser trochanter developed proximally to the level of the greater trochanter (autapomorphic); distal extensor groove deep and narrow lacking cruciate ridge. Cranio-lateral process of tibia with latero-ventral process; lateral malleolus extends distal of medial malleolus. Proximal articular surface of fibula bevelled cranially (autapomorphic). Astragalus with tall ascending process;medially expanded medial condyle; superior and inferior grooves present on cranial face; cranio-lateral process projects from proximo-cranial margin of lateral condyle. Metatarsals elongateand gracile.