Collishaw Point, Hornby Island (Cretaceous of Canada)

Where: British Columbia, Canada (49.6° N, 124.7° W: paleocoordinates 56.1° N, 94.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Northumberland Formation (Nanaimo Group), Late/Upper Campanian (83.5 - 70.6 Ma)

• The Northumberland Formation holds the ammonite key index species Baculites occidentalis, Pachydiscus suciaensis, Nostoceras hornbyense.

• group of beds-level stratigraphic resolution

Environment/lithology: submarine fan; lithified, concretionary, silty, calcareous mudstone

• "deposited in deep-marine waters as distal parts of large submarine fan complexes."
• "silty mudstones" with fossils in "carbonate concretions"

Size classes: macrofossils, mesofossils

Preservation: concretion

Collected by K. Morrison in 2005

• VIPM: Vancouver Island Palaeontological Museum

Primary reference: K. Morrison, G. J. Dyke, and L. M. Chiappe. 2005. Cretaceous fossil birds from Hornby Island (British Columbia). Canadian Journal of Earth Sciences 42:2097-2101 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 84196: authorized by Matthew Carrano, entered by Matthew Carrano on 24.09.2008, edited by Richard Butler and Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
  -
Insecta indet. Linnaeus 1758 insect
Malacostraca
 Decapoda -
Decapoda indet. Latreille 1802 decapod
Cephalopoda
 Coleoidea -
Sepiida indet. Zittel 1895 cuttlefish
"cuttlefish"
 Nautiloidea -
Nautiloidea indet. Agassiz 1847 nautiloid
Scaphopoda
  -
Scaphopoda indet. Bronn 1862 tusk shell
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
 Sorbeoconcha - Aporrhaidae
Tessarolax louellae2 Saul and Squires 2015 snail
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Reptilia
 Squamata - Mosasauridae
Mosasauridae indet. Gervais 1852 mosasaur
Aves
 Enantiornithes -
Euenantiornithes indet. Chiappe 2002 bird
RBCM.EH2005.003.002A-B
 Ornithurae -
Ornithurae indet. bird
RBCM.EH2005.003.001A-E
Actinopteri
 Teleostei -
 Ichthyodectiformes - Saurodontidae
Gwawinapterus beardi n. gen. n. sp.1
Gwawinapterus beardi n. gen. n. sp.1 Arbour and Currie 2011
VIPM 1513a and VIPM 1513b, part and counterpart of a single nodule containing anterior part of rostrum
Chondrichthyes
 Selachii -
Selachii indet. shark
"sharks"
Asteroidea
  -
Asteroidea indet. de Blainville 1830 sea star
Echinoidea
 Irregularia -
Spatangoida indet. Agassiz 1840 heart urchin
"heart urchins"
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Anthozoa
  -
Anthozoa indet. Ehrenberg 1834
"corals"
unclassified
  -
Plantae indet. Haeckel 1866
"plants"