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Pterodroma jugabilis (Oahu petrel)

Reptilia - Procellariidae

Taxonomy
Pterodroma jugabilis was named by Olson and James (1991). Its type specimen is USNM 395173, a partial skull (cranium lacking rostrum and all palatal elements), and it is a 3D body fossil. Its type locality is Barbers Point, Oahu, which is in a Pleistocene reef, buildup or bioherm limestone in the Waimanalo Formation of Hawaii.

Synonymy list
YearName and author
1991Pterodroma jugabilis Olson and James p. 17 figs. Figs. 2A, C, 3A-B, E, G, 4A, C, E

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
RankNameAuthor
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptora
—Paraves
classAves
subclassNeornithesGadow 1893
—Aequornithes
—Feraequornithes
superorderProcellariimorphae
—Procellariiformes(Fürbringer 1888)
familyProcellariidaeVigors 1825
genusPterodromaBonaparte 1856
speciesjugabilis

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Pterodroma jugabilis Olson and James 1991 [Oahu petrel]
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Diagnosis
ReferenceDiagnosis
S. L. Olson and H. F. James 1991A very small species of Pterodroma, skeletal elements always more
gracile than in congeners of comparable size when overlap occurs in length; larger than Bulweria bulwerii. Cranium in dorsal view slender and elongate, very dis-
tinctive in having the supraorbital impressions for the salt glands nearly contig- uous, separated only by a narrow ridge; postorbital processes reduced (Fig. 2A). Compared with P. hypoleuca: rostrum shorter, with tip not as strongly hooked; humerus much more gracile, bicipital crest not as pronounced, ventral tuberosity in ventral view shorter, ectepicondylar spur more slender and markedly more distally situated, brachial depression smaller and not extending as far proximally; ulna, radius, and major hindlimb elements much more gracile, and the trochleae of the tarsometatarsus markedly smaller and narrower.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: solitaryo
Environment: marineo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: carnivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2017-04-17 10:40:15
Modified: 2017-04-17 10:40:15
Source: subo = suborder, o = order
References: Marsh 1875, Bush and Bambach 2015, Benton 1983

Age range: Late/Upper Pleistocene or 0.12900 to 0.01170 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Pleistocene (interglacial)0.129 - 0.0117USA (Hawaii) Pterodroma jugabilis (type locality: 89311)