Talkeetna Mountains hadrosaur (TMM) Quarry (Cretaceous of the United States)

Also known as Lizzie site

Where: Alaska (61.9° N, 147.3° W: paleocoordinates 64.8° N, 93.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: 4 Member (Matanuska Formation), Middle Turonian (93.5 - 89.3 Ma)

• "Member 4, Unit C-1"

• bed-level stratigraphic resolution

Environment/lithology: offshore; bioturbated, concretionary, pyritic, gray, calcareous mudstone

• "middle- to outer-shelf or upper bathyal environment"
• "The bone-bearing unit consists of an easily weathered, dark gray, marine mudstone, containing highly indurated calcareous concretions and finely disseminated pyrite crystals. Horizontal laminae, ripples, and evidence of bioturbation are faintly visible only on wet fresh surfaces." Concretions are sometimes bone-bearing (i.e. nucleated on flesh fragments), sometimes not.

Size classes: macrofossils, mesofossils, microfossils

Preservation: concretion

Collected in 1994; reposited in the TMM

Collection methods: salvage, quarrying, mechanical,

Primary reference: A. D. Pasch and K. C. May. 1995. Significance of a new hadrosaur (Hadrosauridae) from the Matanuska Formation (Cretaceous) in southcentral Alaska. Journal of Vertebrate Paleontology 15(3, suppl.):48A [M. Carrano/M. Carrano]more details

Purpose of describing collection: taphonomic analysis

PaleoDB collection 51920: authorized by Matthew Carrano, entered by Matthew Carrano on 01.07.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Radiolaria indet.1 Müller 1858 radiolarian
 Lituolacea - Haplophragmoiidae
Haplophragmoides sp.2 Cushman 1910
 Rotaliacea - Rotaliidae
 Globigerinina - Globotruncanidae
 Astrorhizacea - Bathysiphonidae
Bathysiphon sp.2 Sars 1872
 Nodosariacea - Polymorphinidae
Guttulina sp.2 d'Orbigny 1839
 Nodosariacea - Nodosariidae
Vaginulina sp.2 d'Orbigny 1826
Dentalina sp.2 d'Orbigny 1826
 Myalinida - Inoceramidae
 Nuculida - Nuculidae
Nucula sp.1 Lamarck 1799 nut clam
Acila sp.1 Adams and Adams 1858 divaricate nutclam
subgenus Truncacila
 Naticoidea - Naticidae
Naticidae indet.1 Guilding 1834 moon snail
 Heterostropha - Ringiculidae
Biplica sp.1 Popenoe 1957 snail
"(or similar opisthobranch)"
 Dentaliida - Dentaliidae
Dentalium sp.1 Linnaeus 1758 tusk shell
 Ammonitida - Desmoceratidae
Mesopuzosia cf. indopacifica1 Kossmat 1898 ammonite
 Ammonitida - Gaudryceratidae
"Gaudryceras aff. denseplicatum" = Gaudryceras (Gaudryceras) denseplicatum1
"Gaudryceras aff. denseplicatum" = Gaudryceras (Gaudryceras) denseplicatum1 Jimbo 1894 ammonite
 Ammonitida - Tetragonitidae
Tetragonites aff. glabrus1 Jimbo 1910 ammonite
 Ammonitida - Scaphitidae
Yezoites puerculus2 Jimbo 1894 ammonite
"(Otoscaphites teshioensis)"
 Ammonitida - Baculitidae
Sciponoceras sp.1 Hyatt 1894 ammonite
 Ammonitida - Nostoceratidae
 Selachii -
Selachii indet.2 shark
"'Mako-type' shark teeth"
Osteichthyes indet.1 bony fish
"fish teeth, jaw fragments, scales"
 Neornithischia -
Hadrosauroidea indet.3 bird foot dinosaur
Porifera indet.2 Grant 1836
 Scleractinia - Caryophylliidae
"? Platycyathus sp." = Trochocyathus (Platycyathus)2
"? Platycyathus sp." = Trochocyathus (Platycyathus)2 Fromentel 1863 stony coral
Lycopodophyta indet.2 Jud 2011
1 sp., palynomorph
Anthophyta indet.2
5 spp., palynomorphs
Pinophyta indet.2 Reveal 1996
9 spp.,, palynomorphs
Cycadophyta indet.2 Bessey 1907
Pteridophyta indet.2 Haeckel 1875
69 spp., palynomorphs
 Ichnofossils -
Teredolites sp.2 Leymerie 1842
? Planolites sp.1 Nicholson 1873