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Ptychocaulus bivittata

Gastropoda - Murchisoniina - Hormotomidae

Taxonomy
Murchisonia bivittata was named by Hall (1852). It is not a trace fossil. Its type locality is Eurypterid-associated biota of the dolomite of the Lockport Fmn. at Elora, Ont., which is in a Ludlow open shallow subtidal dolomite in the Guelph Formation of Canada.

It was recombined as Coelocaeulus bivittata by Ulrich and Scofield (1897), Whiteaves (1906); it was recombined as Coelidium bivittata by Parks (1915); it was recombined as Ptychocaulus bivittata by Wagner (2023).

Synonymy list
YearName and author
1852Murchisonia bivittata Hall p. 345 figs. pl. 83 f. 1a-b
1875Murchisonia bivittata Nicholson p. 546 figs. pl. 26 f. 7
1897Coelocaeulus bivittata Ulrich and Scofield p. 1020
1906Coelocaeulus bivittata Whiteaves p. 334
1915Coelidium bivittata Parks p. 58
2023Ptychocaulus bivittata Wagner p. 3463

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassOrthogastropoda
orderMurchisoniina
superfamilyMurchisonioidea()
familyHormotomidae
genusPtychocaulus()
speciesbivittata()

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.

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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteo
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Locomotion: facultatively mobilesuperf
Life habit: epifaunalsuperf
Diet: suspension feedersuperf
Vision: limitedo
Created: 2009-06-11 17:59:24
Modified: 2009-06-11 19:59:24
Source: f = family, superf = superfamily, o = order
References: Hendy 2009, Bambach et al. 2007

Age range: base of the Telychian to the top of the Ludlow or 438.60000 to 422.70000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Telychian438.6 - 432.9Canada (Ontario) Coelidium bivittata (77332)
Wenlock - Ludlow432.9 - 422.7USA (Wisconsin) Ptychocaulus bivittata (24944)
Ludlow426.7 - 422.7Canada (Ontario) Coelocaeulus bivittata (155723) Murchisonia bivittata (14196 154346)