Sulcolithos variabilis Knaust, 2020

ID17106
Fossil groupBioerosional trace fossils
TaxonSulcolithos variabilis
AuthorKnaust, 2020
ReferenceKnaust, 2020a
Parent taxonSulcolithos
Is validYes
FADEdiacaran
LADRecent
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Synonymy

YearSynonymAuthorPagesFigsReference
2024Sulcolithos variabilis Knaust, 2020Knaust & Schnick84G–IKnaust & Schnick, 2024
2020Sulcolithos variabilis isp. nov.Knaust2Knaust, 2020a
2019Macrobioerosional grooves on trepostome bryozoaToom, Vinn & Hints6I, JToom et al., 2019a
2019non macrobioerosional grooveToom, Vinn & Hints6AToom et al., 2019a
2019Sulcichnus isp.Toom, Vinn & Hints6CToom et al., 2019a
2014non Sulcolithus variabilisVinn et al.4Vinn et al., 2014c
2010non Sulcolithus variabilisVinn & Wilson3Vinn & Wilson, 2010b

Type specimens

TypeNumberRepositoryType localityLoc.Type horizonStrat.RemarksReferenceID
holotypeMHI 2171Muschelkalkmuseum IngelfngenEngelhardt QuarryLadinianKnaust, 2020a

Descriptions and remarks

Knaust, 2020a:

Diagnosis: Grooves unbranched or with short acorn-, bulbor lance-shaped side-branches.

Description: The holotype and paratypes occur on the upper bedding plane of a micritic limestone bed (ca. 10 cm thick) with an area of ca. 430 cm2 . The bedding plane contains various sharply outlined burrows that document frm- to hardground conditions and displays over a dozen of grooves assignable to S. variabilis. The grooves are associated with several shallow pits with irregular elliptical outline and with similar dimensions. Moreover, numerous smaller pits with an elongate, elliptical or curved outline are scattered on the surface. Some circular apertures belong to tubular shafts ca. 2 mm in diameter as parts of Trypanites weisei Mägdefrau, 1932.


Occurrences

Specimens with images (25)

<i></i><br />Aluvere quarry, m, Idavere Substage <i></i><br />Aluvere quarry, m, Idavere Substage <i></i><br />Aluvere quarry, m, Idavere Substage <i></i><br />Aluvere quarry, m, Idavere Substage <i></i><br />Aluvere quarry, m, Idavere Substage <i>ihnofossiil 12</i><br />Kohtla-Järve, m, Kukruse Stage <i>ihnofossiil 12</i><br />Kohtla-Järve, m, Kukruse Stage <i>ihnofossiil 12</i><br />Kohtla-Järve, m, Kukruse Stage <i>ihnofossiil 12</i><br />Kohtla-Järve, m, Kukruse Stage <i>ihnofossiil 12</i><br />Kohtla-Järve, m, Kukruse Stage <i>ihnofossiil 12</i><br />Kohtla-Järve, m, Kukruse Stage <i>ihnofossiil 12</i><br />Kohtla-Järve, m, Kukruse Stage <i>ihnofossiil 12</i><br />Kohtla-Järve, m, Kukruse Stage <i></i><br />Ubja opencast mine, m, Kukruse Stage <i></i><br />Ubja opencast mine, m, Kukruse Stage <i></i><br />Ubja opencast mine, m, Kukruse Stage <i></i><br />Risti trench, m, Raikküla Stage <i></i><br />Saxby shore, m, Vormsi Stage <i></i><br />Saxby shore, m, Vormsi Stage <i></i><br />Lasnamäe quarry, m, Kukruse Stage <i></i><br />Ubja, m, Kukruse Stage <i></i><br />Vasalemma quarry, m, Keila Stage <i></i><br />Küttejõu, m, Kukruse Stage <i></i><br />Küttejõu, m, Kukruse Stage <i></i><br />Reinu Quarry, m, Porkuni Stage

Browse Categories of Architectural Design (CADs):

Borings with elliptical to sub-rectangular cross sections | Branched tubular borings | Camerate boxwork borings | Camerate network borings | Circular holes and pit-shaped borings | Clavate-shaped borings | Cylindrical vertical to oblique borings | Dendritic and rosetted borings | Elongate or branched attachment bioerosion traces | Fracture-shaped bioerosion traces | Globular to spherical borings | Groove bioerosion traces | Multiple attachment bioerosion traces | Non-camerate boxwork borings | Non-camerate network borings | Pouch borings | Radial borings | Single circular to tear-shaped attachment bioerosion traces | Spiral borings | Trackways and scratch imprints | U-shaped borings | Winding borings |