La Pedrera de Rúbies Formation explained

La Pedrera de Rúbies Formation
Type:	Geological formation
Period:	Early Cretaceous
Age:	Late Berriasian-early Barremian ~
Prilithology:	Limestone
Region:	Lérida Province, Catalonia
Coordinates:	42°N 0.9°W
Paleocoordinates:	31.3°N 11.3°W
Unitof:	Montsec Group
Underlies:	Prada Formation
Area:	Montsec

The La Pedrera de Rúbies Formation, also called as La Pedrera de Meià^{[1] [2]} is an Early Cretaceous (late Berriasian to early Barremian geologic formation in Catalonia, Spain. The formation crops out in the area of the Montsec in the Organyà Basin. At the La Pedrera de Meià locality, the formation consists of rhythmically laminated, lithographic limestones that formed in the distal areas of a large, shallow coastal lake.^[3] It is noted for the exceptional preservation of articulated small vertebrates and insects, similar to that of the Solnhofen Limestone.

Fossil content

The La Pedrera de Rúbies Formation has yielded the enantiornithine bird Noguerornis and the scincogekkomorph lizard Pedrerasaurus,^{[4] [5] [6] [7]} and two species of Teiid lizard Meyasaurus, M. fauri and M. crusafonti, the indeterminate avialan Ilerdopteryx,^[8] frogs Neusibatrachus wilferti,^[9] and Montsechobatrachus. A crocodyliform Montsecosuchus and many insects and other arthropods, as:^[10]

• Angarosphex lithographicu
• Archisphex catalunicus
• Artitocoblatta hispanica
• Chalicoridulum montsecensis
• Chrysobothris ballae
• Cionocoleus longicapitis
• Condalia woottoni
• Cretephialtites pedrerae
• Hirmoneura (Eohirmoneura) neli
• Hirmoneura richterae
• Iberoraphidia dividua
• Ilerdocossus pulcherrima
• Ilerdosphex wenzae
• Jarzembowskia edmundi
• Leridatoma pulcherrima
• Manlaya lacabrua
• Meiagaster cretaceus
• Meiatermes bertrani
• Mesoblattina colominasi
• Mesopalingea lerida
• Mimamontsecia cretacea
• Montsecbelus solutus
• Nanoraphidia lithographica
• Nogueroblatta fontllongae
• N. nana
• Pachypsyche vidali
• Pompilopterus montsecensis
• Proraphidia gomezi
• Prosyntexis montsecensis
• Pseudochrysobothris ballae
• Ptiolinites almuthae
• Vitisma occidentalis
• Cretaholocompsa montsecana
• Montsecosphex jarzembowskii
• Cretobestiola hispanica
• Angarosphex penyalveri
• Cretoserphus gomezi
• Bolbonectus lithographicus
• ?Anaglyphites pluricavus
• Palaeaeschna vidali
• Hispanochlorogomphus rossi
• Palaeouloborus lacasae
• Ichthyemidion vivaldi

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with few dinosaur genera
• Tremp Formation
• Baltic, Burmese, Dominican, Mexican amber

References

Bibliography

Further reading

• A. P. Rasnitsyn and J. Ansorge. 2000. Two new Lower Cretaceous hymenopterous insects (Insecta: Hymenoptera) from Sierra del Montsec, Spain. Acta Geológica Hispánica 35:59-64
• X. Martínez-Delclòs. 1993. Blátidos (Insecta, Blattodea) del Cretácico Inferior de España. Familias Mesoblattinidae, Blattulidae y Poliphagidae. Boletín Geológico y Minero 104:516-538
• X. Martínez-Delclòs. 1990. Insectos del Cretácico inferior de Santa Maria de Meià (Lleida): colleción Lluís Marià Vidal i Carreras. Treballs del Museu de Geologia de Barcelona 1:91-116
• P. E. S. Whalley and E. A. Jarzembowski. 1985. Fossil insects from the Lithographic Limestone Montsech (Late Jurassic-early Cretaceous), Lérida Province, Spain. Bulletin of the British Museum of Natural History (Geology) 38(5):381-412
• J. E. Gomez Pallerola. 1979. Un ave y otras especies fósiles nuevas de la biofacies de Santa María de Meyá (Lérida). Boletín Geológico y Minero 90:333-346

Notes and References

1. Gil-Delgado . Alejandro . Delclòs . Xavier . Sellés . Albert . Galobart . Àngel . Oms . Oriol . 2023-04-17 . The Early Cretaceous coastal lake Konservat-Lagerstätte of La Pedrera de Meià (Southern Pyrenees) . Geologica Acta . en . 21 . 1–XIII . 10.1344/GeologicaActa2023.21.3 . 1696-5728. 2445/201820 . free .
2. Galobart . Àngel . Párraga . Javier . Gil-Delgado . Alejandro . 2022-02-25 . The Spread of Fossil heritage: How to Valorise the Lithographic Limestones of the La Pedrera de Meià and La Cabroa Quarries in the Orígens Unesco Global Geopark (Southern Pyrenees, Catalonia) . Geoheritage . 14 . 1 . 10.1007/s12371-022-00669-w . 1867-2477.
3. Web site: La Pedrera de Meià. Paleobiology Database.
4. Weishampel et al., 2004, pp. 517-607
5. Lacasa Ruiz, 1989
6. Chiappé & Lacasa Ruiz, 2002
7. Bolet & Evans, 2010
8. Kellner, 2002
9. Báez & Sanchiz, 2007, p.477
10. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=&formation=La%20Pedrera%20de%20R%FAbies&group_formation_member=La%20Pedrera%20de%20R%FAbies La Pedrera de Rúbies Formation