Mangahouanga Stream (Cretaceous to of New Zealand)

Where: New Zealand (39.0° S, 176.8° E: paleocoordinates 59.4° S, 168.8° W)

• coordinate stated in text

• local area-level geographic resolution

When: Maungataniwha Member (Tahora Formation), Piripauan to Piripauan (85.8 - 66.0 Ma)

• upper layers of formation, age of layer is Haumurian/Piripauan

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; coarse-grained, concretionary, phosphatic, calcareous sandstone and fine-grained, concretionary, phosphatic, calcareous siltstone

• fossils from "concretionary boulders" in the stream bed. "hard calcareous concretions"; "the sediments of the concretions range from fine siltstone to coarse sandstone"

Size class: macrofossils

Preservation: concretion

Collection methods: salvage, quarrying, 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

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Elasmobranchii -
Elasmobranchii indet.1 Bonaparte 1838 elasmobranch
 Pristiformes - Pristidae
Onchopristis dunklei McNulty and Slaughter 1962 sawfish
O. dunklei praecursor
Actinopteri
 Teleostei -
Reptilia
 Testudines - Protostegidae
Protostegidae indet.8 Cope 1873 sea turtle
carapace and plastron fragments
 Dinosauria -
Dinosauria indet.6 dinosaur
CD 51; Ornithopod or Theropod, pedal phalanx
 Saurischia -
Sauropoda indet.3 sauropod
rib fragment
Titanosauria indet.4 Bonaparte and Coria 1993 sauropod
CD.586
 Theropoda -
 Saurischia -
? Ceratosauria indet.2 Marsh 1884 ceratosaur
CD 585
 Ornithischia - Nodosauridae
Nodosauridae indet.9 Marsh 1890 ornithischian
CD 545, 546; proximal protion of anterior rib, two small vertebrae
 Neornithischia - Dryosauridae
Dryosauridae indet.5 Stefano 1903 bird foot dinosaur
 Pterosauria -
Pterosauria indet.11 pterosaur
CD 467, distal portion of left ulna
Pterodactyloidea indet.3 Plieninger 1901 pterosaur
CD 547, scapula?
 Squamata - Mosasauridae
"Moanasaurus mangahouangae n. gen. n. sp." = Mosasaurus mangahouangae7
"Moanasaurus mangahouangae n. gen. n. sp." = Mosasaurus mangahouangae7 Wiffen 1980 mosasaur
 Plesiosauria -
 Sauropterygia - Elasmosauridae
Elasmosauridae indet.10 Cope 1869 elasmosaur
isolated vertebrae, pelvic elements and limb bone fragments
Mauisaurus haasti10 Hector 1874 elasmosaur
vertebrae, isolated phalanges, rib and ischia fragments
Tuarangisaurus keyesi n. gen. n. sp.10 Wiffen and Moisley 1986 elasmosaur
skull and poscrania of juvenile and adult specimens
 Sauropterygia - Pliosauridae
Pliosauridae indet.10 Seeley 1874 plesiosaur
coracoid, vertebral elements, ribs, phalanges, pubes