Genus

Polydorichnus Ishikawa et Kase, 2007

Current taxon already exists. See initial taxon Helicotaphrichnus

Taxon ID: 16125
Fossiiliryhmä: Ichnofossils
Sisältyy taksoniin: Bioerosional trace fossils
Other version of taxon: Helicotaphrichnus
Ajallinen levinneisyys: MioceneRecent (header.f_taxon_age_within 23.0
Baltian ja Fennoskandian lajit (tietokannassa olevat)
Taxon description

Buatois et al., 2017

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

Ishikawa & Kase, 2007

Diagnosis.⎯Very small hole (usually less than 2 mm) with circular to elliptical outer opening, suggested to be commensal in origin and present only in subapical whorls of gastropod shells. Axis of hole usually slightly oblique to substrate surface (mostly toward clockwise coiling direction of whorl). Boring associated with detrital mud tube, if preserved, in anterior two or three whorls of gastropod, and small abraded area on columella just beneath bore-hole opening.

Luokittelu
Organism groupBiota
Ichnofossil groupIchnofossils
Bioerosional trace fossils
Bite marks
FamilyBelichnidae
Centrichnidae
Circolitidae
Dendrinidae
Entobiaidae
Gastrochaenolitidae
Gnathichnidae
Ichnoreticulinidae
Machichnidae
Oichnidae
Osteichnidae
Planobolidae
Podichnidae
Renichnidae
Rogerellidae
Saccomorphidae
Talpinidae
Trypanitidae
GenusAmphifaoichnus
Anellusichnus
Archaeomycelites
Asteriastoma
Balticapunctum
Bascomella
Bothrioichnus
Brachyzapfes
Calciroda
Chaetophorites
Cicatricula
Clionites
Clionoida
Clionoides
Conchifora
Conchotrema
Curvichnus
Cylindricavus
Cylindrocavites
Dekosichnus
Dendrorete
Diorygma
Endoconchia
Fascichnus
Fasciculus
Feldmannius
Flagrichnus
Foraripora
Fossichnus
Gaspeichnus
Glirotremmorpha
Globodendrina
Granarborus
Graysonia
Haguenowia
Haimeina
Heckerina
Hemicanalis
Heterodontichnites
Hyellomorpha
Ichnogutta
Ichnotorula
Immergentia
Iramena
Karethraichnus
Klemmatoica
Lazaichnus
Leptichnus
Mandibulichnus
Martesites
Megascolytinus
Microptychoites
Moniopterus
Munitusichnus
Mycelites
Mycobystrovia
Myzostomites
Nygmites
Olkenbachia
Orbignyopora
Orthogonum
Osedacoides
Ostreoblabe
Palaeoconchocelis
Palaeopede
Paleoipidus
Paleolithophaga
Paleolithopholas
Patellichnus
Pectichnus
Pennatichnus
Pinaceocladichnus
Platydendrina
Polydorichnus
Speciessubapicalis
GenusRadiarites
Ramodendrina
Ramosulcichnus
Repentella
Reticulina
Roderosignus
Ropalonaria
Santichnus
Scolecia
Scolytolarvariumichnus
Sedilichnus
Semidendrina
Seminolithes
Simonizapfes
Spathipora
Specus
Spiracavites
Stellichnus
Stichus
Sulcolithos
Tarrichnium
Terebripora
Tombownichnus
Topsentopsis
Uniglobites
Vermiforichnus
Xylokrypta
Zapfella
SpeciesPalaeoperone