Weka Creek, Waipara River: Early/Lower Maastrichtian, New Zealand
collected by R. Speight 1926

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Mauisaurus haasti Hector 1874
3 specimens
CM Zfr 102 (anterior parts of a pair of large coracoids), CM Zfr 104 (nine cervical vertebrae, one pectoral vertebra, eight posteriormost caudal vertebrae, rib fragments, anterior part of the right coracoid, four elements from a limb and other indeterminate fragments), CM Zr 109 (right femur)
    = Aristonectinae indet.
O'Gorman et al. 2014
CM Zfr 104 (nine cervical vertebrae, one pectoral vertebra, eight posteriormost caudal vertebrae, rib fragments, anterior part of the right coracoid, four elements from a limb and other indeterminate fragments)
Reptilia - Plesiosauria - Polycotylidae
Polycotylidae indet. Williston 1908
1 element
CM Zfr 125 (left propodial)
see common names

Geography
Country:New Zealand State/province:South Island County:North Canterbury
Coordinates: 43.1° South, 172.6° East (view map)
Paleocoordinates:56.4° South, 153.8° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Early/Lower Maastrichtian
Age range of interval:70.60000 - 66.00000 m.y. ago
Stratigraphy
Formation:Conway
Stratigraphic resolution:bed
Stratigraphy comments: Middle Waipara River section of the Conway Formation (South Island)
Lithology and environment
Primary lithology:massive,gray poorly lithified siltstone
Includes fossils?Y
Environment:marine indet.
Geology comments: This comprises a succession of poorly consolidated dark grey, massive siltstones or silty sandstones, largely without preserved primary sedimentary structures. The
unit was deposited under marine conditions with restricted bottom circulation
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Associated major elements:some
Disassociated major elements:some
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:CM
Collectors:R. Speight Collection dates:1926
Collection method comments: CM Zfr,
Metadata
Database number:156364
Authorizer:P. Mannion, E. Vlachos Enterer:J. Tennant, F. Aspromonte
Modifier:F. Aspromonte Research group:vertebrate
Created:2014-05-19 14:47:06 Last modified:2023-11-16 09:04:12
Access level:the public Released:2014-05-19 14:47:06
Creative Commons license:CC BY
Reference information

Primary reference:

35643.ETE S. P. Welles and D. R. Gregg. 1971. Late Cretaceous marine reptiles of New Zealand. Records of the Canterbury Museum 9(1):1-111 [M. Carrano/H. Street]

Secondary references:

51234 J. P. O'Gorman, R. A. Otero, and N. Hiller. 2014. A new record of an aristonectine elasmosaurid (Sauropterygia, Plesiosauria) from the Upper Cretaceous of New Zealand: implications for the Mauisaurus haasti Hector, 1874 hypodigm. Alcheringa 38(4):504-512 [P. Mannion/J. Tennant/P. Mannion]
86483 G. J. Wilson, P. Schiøler, N. Hiller and C. M. Jones. 2005. Age and provenance of Cretaceous marine reptiles from the South Island and Chatham Islands, New Zealand. New Zealand Journal of Geology & Geophysics 48(2):377-387 [E. Vlachos/F. Aspromonte]