Sulidae

From Wikipedia, the free encyclopedia

Sulidae

Scientific classification

Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Pelecaniformes
Family:	Sulidae Reichenbach, 1849

Genera

For prehistoric genera, see text

Synonyms

Pseudosulidae

The bird family Sulidae comprises the gannets and boobies. Both groups are medium-large coastal seabirds that plunge-dive for fish. The species in this family are often considered congeneric, placing all in the genus Sula. However, bones of Sula (boobies) and Morus (gannets) at least can in most cases be readily distinguished, and Abbot's Booby has traits of morphology and behavior not found in any other species and appears to be an ancient lineage maybe closer to the gannets than to the true boobies (Friesen et al. 2000).

[edit] Systematics and evolution

The fossil record of sulids is quite extensive due to the many Miocene/Pliocene forms that have been recovered. The initial radiation formed a number of genera which are now completely extinct, such as the freshwater Masillastega or the bizarre Rhamphastosula which had a bill shaped like an Aracari's; at least the modern genus Sula is (like most genera of extant birds) documented from the Miocene onwards, with the doubtfully distinct Microsula being somewhat intermediate between boobies and gannets (Olson 1985).

Family Sulidae

Genus Sula - boobies (6 living species, possibly 1 recently extinct)
Genus Papasula - Abbott's Booby
Genus Morus - gannets (3 species)

Genus Masillastega (fossil; Middle Eocene of Messel, Germany)
Genus Eostega (fossil; Middle/Late Eocene of Cluj-Manastur, Romania)
Sulidae gen. et sp. indet. (fossil; Thalberg Late Oligocene of Germany: Darga et al. 1999)
Genus Empheresula (fossil; Late Oligocene of Gannat, France - Middle Miocene of Steinheimer Becken, Germany)
Genus Microsula (fossil; Late Oligocene of South Carolina, USA - Grund Middle Miocene of Austria) - doubtfully distinct; includes Pseudosula
Genus Sarmatosula (fossil; Middle Miocene of Credinţa, Romania)
Genus Miosula (fossil; Late Miocene of California)
Genus Palaeosula (fossil; Early Pliocene? of California)
Genus Rhamphastosula (fossil; Pisco Early Pliocene of SC Peru)
Sulidae gen. et sp. indet. (fossil; Late Piocene of Valle di Fine, Italy: Lambrecht 1933)

Placement of "Sula" ronzoni (Early Oligocene of Ronzon, France) in the Sulidae is somewhat uncertain; it was initially described as a Mergus sea-duck, but this is incorrect. Later, it was proposed to be related to cormorants and the genus Prophalacrocorax was erected for it; this seems incorrect also (Olson 1985). For prehistoric species of the extant genera, see the genus articles.

[edit] References

Friesen, V. L.; Anderson, D. J.; Steeves, T. E.; Jones, H. & Schreiber, E. A. (2002): Molecular Support for Species Status of the Nazca Booby (Sula granti). Auk 119(3): 820–826. [English with Spanish abstract] DOI: 10.1642/0004-8038(2002)119[0820:MSFSSO]2.0.CO;2 PDF fulltext

Darga, R.; Böhme, M.; Göhlich, Ursula B. & Rössner, G. E. (1999): Reste höherer Wirbeltiere aus dem Alttertiär des Alpenvorlandes bei Siegsdorf/Oberbayern. Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Historische Geologie 39: 91-114.

Lambrecht, Kálmán (1933): Familia Sulidae. In: Handbuch der Palaeornithologie: 284-287. Gebrüder Bornträger, Berlin.

Olson, Storrs L. (1985): Section X.G.5.a. Sulidae. In: Farner, D.S.; King, J.R. & Parkes, Kenneth C. (eds.): Avian Biology 8: 203-204. Academic Press, New York.