GS11359, Mangahouanga Stream (V19/f6909) (Cretaceous to of New Zealand)

Also known as N104/f909, Hawke's Bay

Where: Hawke's Bay, New Zealand (38.9° S, 176.8° E: paleocoordinates 58.9° S, 168.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Maungataniwha Member (Tahora Formation), Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)

• Upper layers of formation, age of layer is early Hamurian according to Eagle (1994), about 100 m above the Piripauan-Hamurian boundary.

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; poorly lithified, bioturbated, concretionary, nodular, calcareous sandstone

• Presence of low-angle planar cross-bedding and symmetrical ripples suggests a shoreface environment.
• Moderately indurated, poorly bedded, fine-grained, highly bioturbated, grey-mottled sandstone and lenticular shell-beds. Low angle planar cross-bedding and minor, low amplitude symmetrical ripples are also prevalent (Crampton & Moore 1990). Calcareous and phosphatic concretions and pyrite nodules are locally common in the exposed strata. The upper part of the unit is highly fossiliferous and rich in finely comminuted plant material, slightly glauconitic near the top. A coarse pebble to cobble basal conglomerate 50-60 m thick containing blocks of grey wacke, ripped-up sandstone clasts and minor lenses of carbonaceous mudstone and coal interfingers with the sandstone.

Size class: macrofossils

• NPC CD 425 an almost complete skull and NPC CD 426, detached left articular angular, quadrate, and squamosal, atlas-axis complex and seven successive cervical vertebrae 3r-9th of the same individual.

Preservation: concretion

Collected by M. A. and J. Wiffen, W. L. Moisley in 1978; reposited in the IGNS

Collection methods: surface (float), surface (in situ), mechanical,

Primary reference: I. W. Keyes. 1977. Records of the northern hemisphere Cretaceous sawfish genus Onchopristis (order Batoidea) from New Zealand. Journal of Geology and Geophysics 20(2):263-272 [J. Alroy/E. Leckey/E. Leckey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 27887: authorized by Matthew Carrano, entered by Matthew Carrano on 15.01.2003, edited by Erin Leckey, Matthew Clapham, Chelsea Chan and Franco Aspromonte

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Homolodromiidae
Homolodromia novaezelandica n. sp.3 Feldmann 1993 crab
 Decapoda - Torynommidae
Torynomma planata n. sp.3 Feldmann 1993 crab
Bivalvia
 Ostreida - Ostreidae
Gastropoda
 Vanikoroidea - Gigantocapulidae
Gigantocapulus problematicus1 Nagao and Otatume 1938 snail
Reptilia
 Plesiosauria -
Plesiosauria indet.4 de Blainville 1835 plesiosaur
 Plesiosauria - Elasmosauridae
Elasmosauridae indet.12 Cope 1869 elasmosaur
NZGS CD432-435 (isolated vertebrae), NZGS CD438-439, 441 (pelvic elements), NZGS CD442-443 (partial skeletons), CD452,455 (isolated propodials), AM9122 (left femur), NZGS CP431, 444-449 (isolated vertebrae)
Tuarangisaurus keyesi n. gen. n. sp.12 Wiffen and Moisley 1986 elasmosaur
NZGS CD425 (skull) and CD426 (cervical vertebrae, angular, quadrate, and squamosal)
aff. Tuarangisaurus keyesi12 Wiffen and Moisley 1986 elasmosaur
NZGS CD428, pectoral girdle of a juvenil specimen
 Dinosauria -
Dinosauria indet.9 dinosaur
CD 51; Ornithopod or Theropod, pedal phalanx
 Saurischia -
Sauropoda indet.6 sauropod
rib fragment
Titanosauria indet.7 Bonaparte and Coria 1993 sauropod
CD.586
 Ornithischia - Nodosauridae
Nodosauridae indet.11 Marsh 1890 ankylosaur
CD 545, 546; proximal protion of anterior rib, two small vertebrae
 Ornithischia - Dryosauridae
Dryosauridae indet.8 Milner and Norman 1984 ornithopod
 Theropoda -
? Ceratosauria indet.5 ceratosaur
CD 585
 Pterosauria -
Pterosauria indet.13 pterosaur
CD 467, distal portion of left ulna
Pterodactyloidea indet.6 Plieninger 1901 pterosaur
CD 547, scapula?
 Testudines - Protostegidae
Protostegidae indet.10 Cope 1873 sea turtle
carapace and plastron fragments
 Squamata - Mosasauridae
Mosasauridae indet.4 Gervais 1852 mosasaur
Actinopteri
 Teleostei -
Chondrichthyes
 Elasmobranchii -
Elasmobranchii indet.4 Bonaparte 1838 elasmobranch
 Rajiformes - Sclerorhynchidae
Onchopristis dunklei McNulty and Slaughter 1962 ray
O. dunklei praecursor
Crinoidea
 Isocrinida - Isselicrinidae
Isselicrinus mangahouangaensis n. sp.2 Eagle 1994 Sea lily