Miragaia: Late/Upper Kimmeridgian, Portugal
collected 1999, 2001
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Stegosauridae
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Miragaia longicollum n. gen., n. sp.
Mateus et al. 2009
|
2 individuals | |||||||||
| ML 433, 433-A (juvenile) (7 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Portugal | State/province: | Centro | County: | Lisboa |
| Coordinates: | 39.2° North, 9.3° West (view map) | ||||
| Paleocoordinates: | 33.5° North, 1.2° East | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Jurassic | Epoch: | Late/Upper Jurassic |
| Stage: | Kimmeridgian | 10 m.y. bin: | Jurassic 5 |
| Key time interval: | Late/Upper Kimmeridgian | ||
| Age range of interval: | 152.20000 - 149.20000 m.y. ago |
Stratigraphy
| Formation: | Lourinhã | Member: | Praia da Amoreira-Porto Novo | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: unofficial "Miragaia Member" but then Sobral Mb. of Farta Pao Fm. | |||||
Lithology and environment
| Primary lithology: | lithified calcareous sandstone |
| Secondary lithology: | concretionary sandstone |
| Includes fossils? | Y |
| Lithology description: "compact calcareous sandstone overlain by more than 45 cm of the sandstone with lignite lamina and carbonate nodules...the matrix was very dense." | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Spatial orientation: | preferred |
| Preservation of anatomical detail: | good |
| Associated major elements: | all |
| Fragmentation: | occasional |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection |
| Reason for describing collection: | taxonomic analysis | Collection dates: | 1999, 2001 |
Metadata
| Also known as: | Lourinhã | ||
| Database number: | 87089 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2009-03-03 11:51:25 | Last modified: | 2022-04-13 07:50:58 |
| Access level: | the public | Released: | 2009-03-03 11:51:25 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 29300. | ETE | O. Mateus, S. C. R. Maidment, and N. A. Christiansen. 2009. A new long-necked 'sauropod-mimic' stegosaur and the evolution of the plated dinosaurs. Proceedings of the Royal Society B: Biological Sciences 276:1815-1821 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 30211 | ETE | R. Araújo, O. Mateus, A. Walen and N. A. Christiansen. 2009. Preparation techniques applied to a stegosaurian dinosaur from Portugal. Journal of Paleontological Techniques 5:1-23 [M. Carrano/M. Carrano] |
| 77624 | F. Costa and O. Mateus. 2019. Dacentrurine stegosaurs (Dinosauria): a new specimen of Miragaia longicollum from the Late Jurassic of Portugal resolves taxonomical validity and shows the occurrence of the clade in North America. PLoS One 14(11):e0224263:1-124 [M. Carrano/M. Carrano] | |
| 76192 | P. Mocho, R. Royo-Torres, F. Escaso, E. Malafaia, C. M. Chaves, I. Narváez, A. Pérez-García, N. Pimentel, B. C. Silva and F. Ortega. 2017. Upper Jurassic sauropod record in the Lusitanian Basin (Portugal): geographical and lithostratigraphical distribution. Palaeontologia Electronica 20(2):27A:1-50 [M. Carrano/M. Carrano] |