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Punctaconchus

Tentaculita - Microconchida - Punctaconchidae

Taxonomy
Punctaconchus was named by Vinn and Taylor (2007). Its type is Punctaconchus ampliporus. It is the type genus of Punctaconchidae. It was considered unknown by Vinn and Taylor (2007).

It was assigned to Microconchida by Vinn and Taylor (2007); and to Punctaconchidae by Zatoń and Olempska (2017).

Species
P. ampliporus (type species), P. midfordensis, P. palmeri

Synonymy list
YearName and author
2007Punctaconchus Vinn and Taylor
2017Punctaconchus Zatoń and Olempska p. 890

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
RankNameAuthor
classTentaculitaBoucek 1964
subclassTentaculitida(Ljaschenko 1955)
orderMicroconchidaWeedon 1991
familyPunctaconchidae
genusPunctaconchusVinn and Taylor 2007

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. †Punctaconchus Vinn and Taylor 2007
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†Punctaconchus ampliporus Vinn and Taylor 2007
†Punctaconchus midfordensis Richardson 1907
†Punctaconchus palmeri Vinn and Taylor 2007
Diagnosis
ReferenceDiagnosis
O. Vinn and P. D. Taylor 2007Minute calcitic tubes, planispiral, up to three
whorls, dextrally coiled (clockwise), diameter of tube increas−
ing rapidly and evenly, last whorl almost totally enveloping
inner whorls, umbilicus narrow. Tube wall microlamellar,
penetrated by large, circular or elliptical punctae distributed
over entire surface, lamellae deflected outwards around pores.
Tube exterior smooth or ornamented by longitudinal or obli−
que ridges. Tube interior covered by ripplemark−like trans−
verse ridges that bifurcate and may anastomose.
Measurements
No measurements are available
Composition: low Mg calciteo
Locomotion: stationaryo
Life habit: semi-infaunalo
Diet: suspension feedero
Vision: blindc
Created: 2004-02-29 13:44:32
Modified: 2009-10-11 14:08:35
Source: o = order, c = class
References: Kiessling 2004, Aberhan et al. 2004

Age range: base of the Late/Upper Aalenian to the top of the Late/Upper Bathonian or 174.70000 to 165.30000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Aalenian174.7 - 170.9United Kingdom (England) P. ampliporus (240992)
Early/Lower Bajocian170.9 - 168.6United Kingdom (England) P. midfordensis (240993)
Late/Upper Bajocian168.6 - 168.2United Kingdom (England) P. midfordensis (240991)
Late/Upper Bathonian168.2 - 165.3France P. palmeri (37510)
Middle Bathonian - Late/Upper Bathonian168.2 - 165.3United Kingdom (England) P. ampliporus (240990)