Jamie Murray is the Davis Cup champion of 2015.
Gracilisuchus -- slender , long -LRB- one -RRB- -LSB- L. gracilis = slender ; Gk .. sυchnos -LRB- via irregular derivation -RRB- = long -RSB- is an extinct genus of tiny -LRB- 30 cm long -RRB- pseudosuchian -LRB- a group which includes the ancestors of crocodilians -RRB- from the Middle Triassic .. Middle Triassic. Middle Triassic. extinct. extinct. genus. genus. pseudosuchian. pseudosuchian. It is placed in the clade Suchia , close to the ancestry of crocodylomorphs .. Suchia. Suchia. crocodylomorphs. crocodylomorphs. clade. clade. Gracilisuchus was thought to be a dinosaur , but this hypothesis has since been rejected .. dinosaur. dinosaur. Its fossils were first discovered in the 1970s .. Many features in the hindlimbs of Gracilisuchus are also found in a group of primitive crocodylomorphs called sphenosuchians .. crocodylomorphs. crocodylomorphs. Sphenosuchians are usually considered a paraphyletic chain of successively primitive crocodylomorphs , but the features they share in common with Gracilisuchus suggest Sphenosuchia and Gracilisuchus may form a monophyletic grouping , or valid clade , of crocodylomorphs .. crocodylomorphs. crocodylomorphs. paraphyletic. paraphyletic. monophyletic. monophyletic. clade. clade. A recent paper places the genus in the new family Gracilisuchidae , along with the genera Turfanosuchus and Yonghesuchus near the base of the Suchia .. genus. genus. Suchia. Suchia. Gracilisuchidae. Gracilisuchidae. Turfanosuchus. Turfanosuchus. Yonghesuchus. Yonghesuchus