Fagesia

Fagesia is a small, subglobular ammonite (suborder Ammonitina) belonging to the vascoceratid family of the Acanthocerataceae that lived during the Turonian stage of the Late Cretaceous, 92-88 Ma ago.

Fagesia Temporal range: Turonian 92–88 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Fossil of Fagesia spheroidalis from Japan. Late Cretaceous. Exhibit in the National Museum of Nature and Science, Tokyo, Japan
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Ammonoidea
Order:	Ammonitida
Superfamily:	Acanthocerataceae
Family:	Vascoceratidae
Genus:	Fagesia Pervinquière 1907
Species
See text

The shell of Fagesia is about 9.5 cm (3.47 in) in diameter, typically with blunt umbilical tubercles from which spring 2 or three ribs each, but which are lost in the late growth stage. The suture is ammonitic with long spikey lobes and saddles with rounded subelements.

Species

• †Fagesia catinus Mantell 1822 - Loma Gorda Formation, Colombia
• †Fagesia fleuryi Pervinquière 1907
• †Fagesia peroni Pervinquière 1907
• †Fagesia pervinquieri Bose 1920
• †Fagesia rudra Stoliczka 1865
• †Fagesia spheroidalis Pervinquière 1907
• †Fagesia superstes Kossmat 1897
• †Fagesia tevesthensis Peron 1896

Distribution

Fossils of Fagesia have been found in Brazil, Colombia (El Colegio, Cundinamarca, La Frontera (Cundinamarca, Huila and Boyacá),[1] and Loma Gorda Formations, Aipe, Huila),[2] Egypt, France, Mexico, Morocco, Nigeria, Oman, Romania, the Russian Federation, Tunisia, United States (Arizona, California, Colorado, New Mexico, Texas), and Venezuela.[3]

References

1. Blanco et al., 2004, p.26
2. Patarroyo, 2011
3. Fagesia at Fossilworks.org

Bibliography

• Blanco, Johana Paola; Paula Andrea Medina, and Pedro Patarroyo. 2004. La Formación La Frontera, Sección Vereda Tóriba: Una propuesta para la designación del Lectoestratotipo. Geología Colombiana 29. 23-40. Accessed 2017-04-04.
• Patarroyo, Pedro. 2011. Sucesión de Amonitas del Cretácico Superior (Cenomaniano-Coniaciano) de la parte más alta de la Formación Hondita y de la Formación Loma Gorda en la Quebrada Bambucá, Aipe - Huila (Colombia). Boletín de Geología, Universidad Nacional de Colombia 33. 69-92. Accessed 2017-04-04.

Further reading

• Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.