Tremichnus paraboloides Brett, 1985

ID13355
Fossil groupBioerosional trace fossils
TaxonTremichnus paraboloides
AuthorBrett, 1985
ReferenceBrett, 1985
Parent taxonTremichnus
Is validYes
FADVolkhov Stage
LADGivetian
Edit in SARV Workbench

Synonymy

YearSynonymAuthorPagesFigsReference
2022Tremichnus paraboloidesThomka, Vinn & Toom2Thomka et al., 2022a
2017Oichnus paraboloides Bromley, 1981Donovan & Pickerill828Donovan & Pickerill, 2017
2015Tremichnus paraboloides Brett, 1985Wisshak et al.449Wisshak et al., 2015
1989Balticapunctum inchoatus Rozhnov, isp. nov.Rozhnov532:1-2Rozhnov, 1989
1985Tremichnus paraboloides n. ichnosp.Brett6271, 2Brett, 1985
1985Tremichnus minutus n. isp.Brett6294, 5Brett, 1985
1985Tremichnus cysticus n. isp.Brett6283, 4Brett, 1985

Type specimens

TypeNumberRepositoryType localityLoc.Type horizonStrat.RemarksReferenceID
holotypeBMS E23971Buffalo Museum of SciencNiagara Gorge at LewistonPits in Icthyocrinus laevis ConradBrett, 1985

Descriptions and remarks

Diagnosis: Pits, circular, regularly and smoothly parabolic in cross section; about as deep as wide (depth/diameter ratio: 0.9); ranging in size from 0.1-3.6 mm in diameter (X = 0.95 mm, SD = 0.65, N = 529 pits); up to 100 pits of varying size may occur on a single calyx. Pit apertures sharply demarcated, flush; never beveled or surrounded by a raised rim or gall-like outgrowth, pits rarely associated with vague swelling of the underlying stereom; pits frequently intersecting at borders.


Occurrences

Specimens with images (2)

<i></i><br />Sepise outcrop,  m, Jaagarahu Stage <i></i><br />Sepise outcrop,  m, Jaagarahu 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 |