Adam Mudstone, Inangahua & Waitahu Outliers, Reefton area, New Zealand (Devonian of New Zealand)

Where: New Zealand (42.1° S, 171.9° E: paleocoordinates 23.1° S, 178.8° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Adam Mudstone Formation, Emsian (407.6 - 393.3 Ma)

• Reefton Group is not very well dated, as there are few correlatable fossils.

• formation-level stratigraphic resolution

Environment/lithology: marine; silty mudstone and calcareous siltstone

• "Low energy offshore shelf with sporadic higher energy storm events. Breaker point bar at top and bottom built out by longshore drift."
• "120-200m. Massive silty mudstone; minor siltstone & sandstone. Highly fossiliferous calcareous siltstone horizons. Thin sandstone at top and base."

Primary reference: M. A. Bradshaw. 1999. Lower Devonian bivalves from the Reefton Group, New Zealand. Memoirs of the Association of Australasian Palaeontologists 20:1-171 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 40525: authorized by Michael Foote, entered by Michael Foote on 24.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Crinoidea
  -
Crinoidea indet.2
Crinoidea indet.2 Miller 1821 Sea lily
Placodermi
 Arthrodira - Actinolepidae
Actinolepis sp.1
Actinolepis sp.1 Agassiz 1845 armour-plated fish
Lingulata
 Lingulida - Lingulidae
Lingula sp.2
Lingula sp.2 Bruguiére 1797
 Lingulida - Discinidae
Orbiculoidea (Lingulidiscina) sp.2
Strophomenata
 Strophomenida - Chonetidae
Chonetes "sp. A"2
Chonetes "sp. A"2 Fischer de Waldheim 1830
 Strophomenida - Leptostrophiidae
? Leptostrophia reeftonensis2
Rhynchonellata
 Spiriferida - Acrospiriferidae
Acrospirifer coxi2, Mauispirifer hectori2
 Rhynchonellida -
Tanerhynchia sp.2
 Terebratulida - Meganterididae
Reeftonella neozelanica2
Bryozoa
  -
Bryozoa indet.2
Bryozoa indet.2 Ehrenberg 1831
Cephalopoda
 Nautiloidea -
Nautiloidea indet.2
Nautiloidea indet.2 Agassiz 1847 nautiloid
orthocones
Bivalvia
 Nuculanida - Sareptidae
Paleyoldia devonica n. sp.
 Nuculanida - Malletiidae
Ctenodontella gagei n. sp.
 Nuculanida - Polidevciidae
Phestia ranfti n. sp., Phestia hegani n. sp., Phestia suggatei n. sp., Phestia pluvia n. sp.
Phestia ranfti n. sp. clam
Phestia hegani n. sp. clam
Phestia suggatei n. sp. clam
Phestia pluvia n. sp. clam
 Nuculanida - Cucullellidae
Nuculites primus n. sp., Nuculites cf. argentinium
Nuculites primus n. sp. clam
 Nuculida - Nuculidae
Notonucula umbra, Notonucula vespa, Notonucula talenti n. sp.
Notonucula talenti n. sp. nut clam
 Pectinida - Pterinopectinidae
Pterinopecten sp., Lyriopecten casterorum
Pterinopecten sp. Hall 1883 scallop
 Ostreida - Pterineidae
Cornellites mackayi, Cornellites flemingi n. sp., Cornellites johnstoni n. sp.
Cornellites flemingi n. sp. oyster
Cornellites johnstoni n. sp. oyster
 Cyrtodontida - Cyrtodontidae
Cyrtodonta sp.
Cyrtodonta sp. Billings 1858 clam
 Cardiidia - Grammysiidae
Sphenotus sp.2, Cimitaria hendersoni
Sphenotus sp.2 Hall 1884 clam
 Cardiidia - Sanguinolitidae
Paleodora reeftonensis, Paleodora angulata n. sp.
Paleodora angulata n. sp. clam
 Modiomorphida - Modiomorphidae
Glossites cf. lingualis, ? Modiomorpha ? kaka, Modiomorpha sp., Goniophora sp.
Modiomorpha sp. Hall and Whitfield 1869 clam
Goniophora sp. Phillips 1848 clam
 Solenida - Orthonotidae
Orthonota sp.
Orthonota sp. Conrad 1841 clam
 Carditida - Astartidae
Nargunella cf. nitida
Nargunella cf. nitida Talent 1963 clam
 Trigoniida - Eoschizodidae
? Eoschizodus sp.
? Eoschizodus sp. Cox 1951 clam
Trilobita
 Phacopida - Homalonotidae
Burmeisteria (Digonus) expansus2
1Bradshaw 1988; 2Bradshaw and Hegan 1983