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Placometra

Crinoidea - Comatulida - Pterocomidae

Taxonomy
Placometra was named by Jagt (1999) [Sepkoski's age data: K Turo T Dani]. It is not extant. Its type is Placometra mortenseni.

It was assigned to Comatulida by Rasmussen (1961), Sepkoski (2002); and to Pterocomidae by Hess and Messing (2011).

Species
P. laticirra, P. mortenseni (type species), P. scutata
Species lacking formal opinion data
P. conica

Synonymy list
YearName and author
1961Placometra Rasmussen p. 352
1999Placometra Jagt p. 91
2002Placometra Sepkoski
2011Placometra Hess and Messing p. 118

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
—Ambulacraria
phylumEchinodermata
subphylumBlastozoa
classCrinoideaMiller 1821
subclassPentacrinoideaJaekel 1918
RankNameAuthor
infraclassInadunata(Wachsmuth and Springer 1897)
—Cladida(Moore and Laudon 1943)
—Eucladida
subclassArticulata(Miller 1821)
orderComatulidaClark 1908
suborderComatulidinaClark 1908
superfamilyTropiometroidea(Clark 1908)
familyPterocomidaeRasmussen 1978
genusPlacometra

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. †Placometra Jagt 1999
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†Placometra laticirra Carpenter 1880
†Placometra mortenseni Gislen 1924
†Placometra scutata Gislen 1925
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: high Mg calciteo
Ontogeny: accretion, addition of partsp
Environment: marineo
Locomotion: facultatively mobileo
Attached: yeso
Life habit: intermediate-level epifaunalo
Diet: suspension feedero
Vision: blindc
Dispersal: waterp
Dispersal 2: planktonicp
Created: 2004-02-28 16:07:27
Modified: 2009-10-08 14:29:07
Source: o = order, c = class, p = phylum
References: Aberhan 1992, Kiessling 2004, Aberhan et al. 2004

Age range: base of the Late/Upper Turonian to the top of the Early/Lower Maastrichtian or 93.90000 to 66.00000 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Turonian93.9 - 89.8United Kingdom (England) P. conica, P. laticirra (71069)
Late/Upper Campanian83.6 - 72.2Belgium (Liege) P. laticirra (32147)
Early/Lower Maastrichtian72.2 - 66.0Germany (Mecklenburg-Vorpommern) P. laticirra, P. scutata (32022)
Late/Upper Maastrichtian72.2 - 66.0Belgium (Liege) P. laticirra (32153 32156)
Late/Upper Maastrichtian72.2 - 66.0Netherlands (Limburg) P. laticirra (32167)
Late/Upper Maastrichtian - Late/Upper Cretaceous72.2 - 66.0Belgium (Liege) P. laticirra (32175)
Late/Upper Maastrichtian - Maastrichtian72.2 - 66.0Netherlands P. laticirra (32162)