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

Show authors, comments, and common names
unclassified
  -
Muramotoceras aff. yezoense1, Pyrrhophyta indet.2, Gingkophyta indet.2
Gingkophyta indet.2
palynomorph
Foraminifera
 Lituolida - Haplophragmoididae
Haplophragmoides sp.2
Haplophragmoides sp.2 Cushman 1910
"spp."
Nodosariata
 Nodosariida - Nodosariidae
Dentalina sp.2, Vaginulina sp.2
Dentalina sp.2 d'Orbigny 1826
Vaginulina sp.2 d'Orbigny 1826
 Polymorphinida - Polymorphinidae
Guttulina sp.2
Guttulina sp.2 d'Orbigny 1839
Foraminifera
  -
Gavellinella cf. velascoensis2
 Astrorhizacea - Bathysiphonidae
Bathysiphon sp.2
Bathysiphon sp.2 Sars 1872
"spp."
Globothalamea
 Rotaliida - Cancrisidae
Gyroidinoides sp.2
Gyroidinoides sp.2 Reiss 1963
Foraminifera
 Globigerinaceae - Globotruncanidae
Marginotruncana cf. sigali2
Protozoa
  -
Radiolaria indet.1
unclassified
  -
Pteridophyta indet.2, Anthophyta indet.2, Cycadophyta indet.2, Lycopodophyta indet.2, Pinophyta indet.2, Porifera indet.2
Pteridophyta indet.2 Haeckel 1875
69 spp., palynomorphs
Anthophyta indet.2
5 spp., palynomorphs
Cycadophyta indet.2 Bessey 1907
palynomorph
Lycopodophyta indet.2
1 sp., palynomorph
Pinophyta indet.2 Reveal 1996
9 spp.,, palynomorphs
Porifera indet.2 Grant 1836
Anthozoa
 Scleractinia - Caryophylliidae
"? Platycyathus sp." = Trochocyathus (Platycyathus)2
"? Platycyathus sp." = Trochocyathus (Platycyathus)2 Fromentel 1863 stony coral
Gnathostomata
  -
Osteichthyes indet.1
Osteichthyes indet.1 bony fish
"fish teeth, jaw fragments, scales"
Reptilia
 Ornithischia -
Hadrosauroidea indet.3
Chondrichthyes
 Selachii -
Selachii indet.2
Selachii indet.2 shark
"'Mako-type' shark teeth"
Bivalvia
 Nuculida - Nuculidae
Nucula sp.1, Acila sp.1
Nucula sp.1 Lamarck 1799 nut clam
Acila sp.1 Adams and Adams 1858 divaricate nutclam
subgenus Truncacila
 Myalinida - Inoceramidae
Inoceramus aff. mamatensis1, Inoceramus aff. cuvieri1, Inoceramus aff. teshioensis1, Inoceramus aff. hobetsensis1
Inoceramus aff. cuvieri1 Sowerby 1814 clam
Inoceramus aff. teshioensis1 Nagao and Matsumoto 1939 clam
Inoceramus aff. hobetsensis1 Nagao and Matsumoto 1939 clam
Cephalopoda
 Ammonitida - Desmoceratidae
Mesopuzosia cf. indopacifica1
Mesopuzosia cf. indopacifica1 Kossmat 1898 ammonite
 Ammonitida - Tetragonitidae
"Gaudryceras aff. denseplicatum" = Gaudryceras (Gaudryceras) denseplicatum1, Tetragonites aff. glabrus1
"Gaudryceras aff. denseplicatum" = Gaudryceras (Gaudryceras) denseplicatum1 Jimbo 1894 ammonite
Tetragonites aff. glabrus1 Jimbo 1910 ammonite
 Ammonitida - Scaphitidae
Yezoites puerculus2
Yezoites puerculus2 Jimbo 1894 ammonite
"(Otoscaphites teshioensis)"
 Ammonitida - Baculitidae
Sciponoceras sp.1
Sciponoceras sp.1 Hyatt 1894 ammonite
 Ammonitida - Nostoceratidae
Eubostrychoceras cf. japonicum1
Eubostrychoceras cf. japonicum1 Yabe 1904 ammonite
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp.1
Dentalium sp.1 Linnaeus 1758 tusk shell
Gastropoda
 Sorbeoconcha - Naticidae
Naticidae indet.1
Naticidae indet.1 Guilding 1834 moon snail
 Heterostropha - Ringiculidae
Biplica sp.1
Biplica sp.1 Popenoe 1957 snail
"(or similar opisthobranch)"
 Ichnofossils -
Teredolites sp.2, ? Planolites sp.1
Teredolites sp.2 Leymerie 1842
? Planolites sp.1 Nicholson 1873
1Pasch and May 1997; 2Pasch and May 2001; 3Sues and Averianov 2009