dinochecker
Welcome to our WYLEYIA entry...
Archived dinosaurs: 835
fb twit g+ feed
Dinosaurs from A to Z
Click a letter to view...
A B C D E F G
H I J K L M N
O P Q R S T U
V W X Y Z ?

WYLEYIA

a meat-eating maniraptoran theropod dinosaur from the Late Cretaceous of England.
Pronunciation: WY-lee-yuh
Meaning: for J. G. Wyley
Author/s: Harrison and Walker (1973)
Synonyms: None known
First Discovery: Sussex, England
Chart Position: 189

Wyleyia valdensis

The funny thing about Wyleyia valdensis is that it's known only from a funny bone—a humerus—and not a particularly good one at that. Having compared it to the humeri of pterosaurs and small dinosaurs like Hypsilophodon and Deinonychus, Harrison and Walker were confident that it belonged to Britain's oldest bird, similar in form to both Archaeopteryx and Ichthyornis only smaller, but they refused to be drawn on specific affinities, which is understandible given the paucity of its remains.

It was dismissed as "almost certainly a reptilian" in 1978 by Pierce Brodkorb who has mentored his fair share of BANDits (proponents of the Birds Are Not Dinosaurs movement), then pegged as a primitive coelurosaurian theropod of the none-avian variety by David Norman in 1990. But now it appears to be a bird again, gliding aimlessly around Maniraptora until better fossils turn up to aid its classification.
(For Wyley, from the Weald)Etymology
Wyleyia is named for J. G. Wyley who discovered its remains.
The species epithet, valdensis, is derived from the Latin "valdus" ("Weald" referring to the Weald clay) and "-ensis" (from, place of origin).
Discovery
The remains of Wyleyia were discovered in the Weald Clay of Henfield, Sussex, England, by Wyley in July of 1964. The holotype (BMNH A3658) is a damaged partial humerus.
Estimations
Timeline:
Era: Mesozoic
Epoch: Early Cretaceous
Stage: Valanginian
Age range: 139-134 mya
Stats:
Est. max. length: ?
Est. max. hip height: ?
Est. max. weight: ?
Diet: Carnivore
Family Tree:
Dinosauria
Saurischia
Theropoda
Tetanurae
Maniraptora
uncertain
Wyleyia
valdensis
References
• Harrison CJO and Walker CA (1973) "Wyleyia: a new bird humerus from the Lower Cretaceous of England". Palaenotology 16(4): 721-728.
• Brodkorb P (1978) "Catalogue of Fossil Birds. Part 5: Passeriformes". Bulletin of the Florida State Museum, Biological Sciences 23 (2), 15 Dec 1978: page 228.
• Vickaryous MK, Maryańska T and Weishampel DB (2004) "The Dinosauria: Second Edition".
Email    Facebook    Twitter    Google+    Stumbleupon    Reddit    Pinterest    Delicious
Time stands still for no man, and research is ongoing. If you spot an error, or want to expand, edit or add a dinosaur, please use this form. Go here to contribute to our FAQ.
All dinos are GM free, and no herbivores were eaten during site construction!
To cite this page:
Atkinson, L. "WYLEYIA :: from DinoChecker's dinosaur archive".
›. Web access: 20th Aug 2017.
  top