Post by creature386 on Sept 1, 2016 2:50:41 GMT 5
Wiehenvenator albati
Reconstruction of W. albati. Scale bar equals 1 m.
Scientific classification:
Dinosauria
Theropoda
Megalosauroidea
Megalosauridae
Wiehenvenator
W. albati
Location: Ornatenton Formation, Wiehengebirge, Germany (Europe)
Temporal range: Middle Callovian (~165 mya)
Description:
Wiegenvenator albati was a megalosaurid from the Jurassic of Europe which was discovered by Friedrich Albat in 1998. It was known under the informal name "Das Monster von Minden" (Minden is a city close to its location) between its discovery and its description. Its scientific name is based on the location where it was found and its discoverer's name. The holotype includes a skull where most of the upper jaw and parts of the dentary are preserved, as well as a partial skeleton. The present material allows a reconstruction of the skull and it shows it to be long and low.
Scale bar equals 10 cm.
Its histology suggests that the holotype specimen was a sub-adult. Based on its closest relative Torvosaurus, the known specimen can be estimated at a length of 8-9 m (the former estimate is based on comparisons to T. gurneyi's maxilla, the latter on comparisons to T. tanneri's tail vertebrae and fibulae), making it one of the largest European theropods.
Phylogeny and implications on theropod evolution:
A parsimony analysis in the description paper classifies Wiegenvenator as a megalosaurid megalosaurine and a sister taxa of the Late Jurassic Torvosaurus, making it the first known diagnostic megalosaurid from the Middle Jurassic of Europe:
1. represents the strict consensus of 500 trees, 2. is a reduced tree that excludes Streptospondylus.
The phylogenetic tree indicates a radiation of tetanuran theropods between the Early and Middle Jurassic, an event which was probably caused by an extinction event during the Pliensbachian-Toarcian boundary.
Source:
Rauhut, Oliver W. M.; Hübner, Tom; Lanser, Klaus-Peter (2016): A new megalosaurid theropod dinosaur from the late Middle Jurassic (Callovian) of north-western Germany: implications for theropod evolution and faunal turnover in the Jurassic. Palaeontologia Electronica 19.2.26A: 1-65
www.palaeo-electronica.org/content/2016/1536-german-jurassic-megalosaurid
Reconstruction of W. albati. Scale bar equals 1 m.
Scientific classification:
Dinosauria
Theropoda
Megalosauroidea
Megalosauridae
Wiehenvenator
W. albati
Location: Ornatenton Formation, Wiehengebirge, Germany (Europe)
Temporal range: Middle Callovian (~165 mya)
Description:
Wiegenvenator albati was a megalosaurid from the Jurassic of Europe which was discovered by Friedrich Albat in 1998. It was known under the informal name "Das Monster von Minden" (Minden is a city close to its location) between its discovery and its description. Its scientific name is based on the location where it was found and its discoverer's name. The holotype includes a skull where most of the upper jaw and parts of the dentary are preserved, as well as a partial skeleton. The present material allows a reconstruction of the skull and it shows it to be long and low.
Scale bar equals 10 cm.
Its histology suggests that the holotype specimen was a sub-adult. Based on its closest relative Torvosaurus, the known specimen can be estimated at a length of 8-9 m (the former estimate is based on comparisons to T. gurneyi's maxilla, the latter on comparisons to T. tanneri's tail vertebrae and fibulae), making it one of the largest European theropods.
Phylogeny and implications on theropod evolution:
A parsimony analysis in the description paper classifies Wiegenvenator as a megalosaurid megalosaurine and a sister taxa of the Late Jurassic Torvosaurus, making it the first known diagnostic megalosaurid from the Middle Jurassic of Europe:
1. represents the strict consensus of 500 trees, 2. is a reduced tree that excludes Streptospondylus.
The phylogenetic tree indicates a radiation of tetanuran theropods between the Early and Middle Jurassic, an event which was probably caused by an extinction event during the Pliensbachian-Toarcian boundary.
Source:
Rauhut, Oliver W. M.; Hübner, Tom; Lanser, Klaus-Peter (2016): A new megalosaurid theropod dinosaur from the late Middle Jurassic (Callovian) of north-western Germany: implications for theropod evolution and faunal turnover in the Jurassic. Palaeontologia Electronica 19.2.26A: 1-65
www.palaeo-electronica.org/content/2016/1536-german-jurassic-megalosaurid