Curvichnus Nielsen, 2002

ID16181
Fossil groupBioerosional trace fossils
CADCircular holes and pit-shaped borings
TypeMacroboring
SubstrateCalcareous substrate
TaxonCurvichnus
AuthorNielsen, 2002
ReferenceNielsen, 2002
Parent taxonCircolitidae
Is validYes
FADCampanian
LADEocene
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Includes:


Synonymy

YearSynonymAuthorPagesFigsReference
2007Curvichnus Nielsen, 2002Blissett & Pickerill81Blissett & Pickerill, 2007
2002Curvichnus igen. nov.Nielsen674Nielsen, 2002

Descriptions and remarks

Diagnosis.—Biogenic structure having an irregular, semicircular to circular outline and situated in skeletal substrates.


Branched, unbranched, circular.


Category of architectural design: 2.63. Circular holes and pit-shaped borings.


Macroboring; substrate calcareous; tracemaker invertebrate


Occurrences


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 |