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Phakelodus

Conodonta - Conodontophorida

Taxonomy
Phakelodus was named by Miller (1984).

It was assigned to Amphigeisinidae by Miller (1984); and to Paraconodontida by Müller and Hinz (1991).

Species
P. tenuis
Species lacking formal opinion data
P. elongates, P. elongatus, P. tennis, P. terashimai

Synonymy list
YearName and author
1984Phakelodus Miller p. 65
1991Phakelodus Müller and Hinz p. 32

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
RankNameAuthor
superclassCyclostomataRichards
orderConodontophorida
classConodontaPander 1856
orderParaconodontidaMüller 1962
genusPhakelodus

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.

G. †Phakelodus Miller 1984
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†Phakelodus tenuis Muller 1959
Diagnosis
ReferenceDiagnosis
J. F. Miller 1984Individual elements coniform, proclined, nongeniculate; bilaterally symmetrical or nearly so; long, very slender, oval in cross section; anterior edge a smooth curve both longitudinally and transversely, posterior edge usually drawn out into a keel extending the entire length of element; internal cavity extends to element tip so that a true cusp is lacking. Elements contain a relatively high proportion of organic material and grew from the tip downward by addition of internal growth lamellae. Apparatus unimembrate, consisting of two half-apparatuses of parallel-oriented elements arranged with the concave edges of each half-apparatus facing each other and the tips at the same end; each half-apparatus is symmetrical and consists of as many as 13 elements. Phakelodus differs from two of the other genera in the family in lacking posterolateral keels; the type species of Protohertzina has a posterior and two symmetrically arranged posterolateral keels, and Amphigeisina has similar posterolateral keels but no posterior keel. Phakelodus has only a posterior keel. Gapparodus has no keels and has a groove on each lateral side
Measurements
No measurements are available
Composition: hydroxyapatitec
Environment: marinesubp
Locomotion: actively mobilec
Life habit: nektonicc
Diet: carnivorec
Vision: well-developedc
Created: 2005-02-03 07:48:42
Modified: 2010-02-12 04:00:46
Source: c = class, subp = subphylum
References: Aberhan 1992, Carroll 1988

Age range: base of the Dyeran to the top of the Warendian or 515.30000 to 484.30000 Ma

Collections (92 total)


Time interval Ma Country or state Original ID and collection number
Cambrian538.8 - 486.85China (Jilin Provence) P. tenuis (156911 156913 156915 156917 156918)
Cambrian538.8 - 486.85Norway (Naersnes) P. tenuis (156964)
Cambrian538.8 - 486.85Russian Federation (St. Petersburg) P. tenuis (191187)
Dyeran515.3 - 509.7USA (New York) P. terashimai (78767)
Amgan - Mayan508.2 - 499.5Russian Federation (Leningrad Oblast) P. tenuis (235438)
Middle Cambrian506.5 - 497.0Norway (Oslo-Asker) P. elongatus, P. tenuis (204482)
Guzhangian500.5 - 497.0China (Hebei) Prooneotodus tenuis (129587 129589)
Guzhangian500.5 - 497.0China (Hunan) P. elongates, P. tenuis (49185) P. elongatus, P. tenuis (49188 49189) P. tenuis (49186 49190)
Ayusokkanian - Aksaian499.5 - 491.5Russian Federation (Leningrad Oblast) P. tenuis, Prooneotodus tenuis (235439)
Paibian497.0 - 494.2China (Hunan) P. tenuis (49195)
Franconian497.0 - 486.85Canada (Newfoundland and Labrador) P. elongatus, P. tenuis (90968)
Furongian497.0 - 486.85Norway (Oslo-Asker) P. elongatus (204484) P. elongatus, P. tenuis (204481 204483 204485)
Furongian497.0 - 486.85China (Jilin Provence) P. tenuis (156908)
Furongian497.0 - 486.85Russian Federation (Gorny Altai) P. tenuis (203913 203914 203915)
Furongian497.0 - 486.85Estonia (Tallinn) P. tenuis (191164)
Furongian497.0 - 486.85Kazakhstan P. elongatus, P. tenuis (116481 116482 116483 116484)
Furongian497.0 - 486.85South Korea P. elongatus (203747 203752) P. elongatus, P. tenuis (203730 203748 203749 203753)
Furongian497.0 - 486.85United Kingdom Prooneotodus tenuis (229505 229507 229509 229513)
Merioneth497.0 - 486.85USA (Vermont) P. tenuis (6870 6871)
Furongian - Tremadoc497.0 - 477.1Norway (Naersnes) P. tenuis (156965)
Taoyuanian495.2 - 486.85China (Hebei) Prooneotodus tenuis (129596 129604)
Batyrbaian491.5 - 486.85Russian Federation (Siberia) P. tenuis (205625)
Batyrbaian - Tremadocian491.5 - 477.1Russian Federation (Siberia) P. tenuis (205624)
Niuchehean491.0 - 486.85China (Jilin Provence) P. tenuis (156900 156901 156906)
Niuchehean491.0 - 486.85China (Hunan) Prooneotodus tenuis (107332 107333 126727)
Niuchehean491.0 - 486.85Norway (Naersnes) P. tenuis (156945)
Niuchehean491.0 - 486.85China (Hebei) Prooneotodus tenuis (129619 129659)
Niuchehean491.0 - 486.85China (Jilin) P. tenuis (156902 156903 156904 156905 156907)
Niuchehean491.0 - 486.85China (Zhejiang) Prooneotodus tenuis (125708)
Trempealeauan490.2 - 486.85Canada (Newfoundland and Labrador) P. elongatus, P. tenuis (90969 90971) P. tennis (203836)
Trempealeauan - Gasconadian490.2 - 477.1Canada (Quebec) Prooneotodus tenuis (105866)
Warendian486.85 - 484.3China (Jilin Provence) P. tenuis (156933)
Gasconadian486.85 - 477.1Canada (Quebec) Prooneotodus tenuis (203942)
Tremadocian486.85 - 477.1Argentina P. elongatus (156001)
Ordovician486.85 - 443.1Norway (Naersnes) P. tenuis (156958)
Ordovician486.85 - 443.1China (Jilin Provence) P. tenuis (156932)
Tremadoc486.4 - 477.1United Kingdom (England) P. sp. (91422)
Tremadoc486.4 - 477.1Argentina P. elongatus, P. tenuis (204252)
Tremadoc486.4 - 477.1Kazakhstan P. elongatus, P. tenuis (116490 116491 116492 116493) P. tenuis (116486 116487 116489)
Tremadoc486.4 - 477.1Mexico (Oaxaca) Oneotodus tenuis (9827 9838 9844 9847 9848)
Tremadoc486.4 - 477.1Antarctica Prooneotodus tenuis (116174)
Tremadoc486.4 - 477.1South Korea (Kangweondo) P. tenuis (203852 203853)
Tremadoc486.4 - 477.1Norway P. tenuis (3105)