Quantico Locality (Cretaceous of the United States)

Where: Stafford County, Virginia (38.5° N, 77.3° W: paleocoordinates 31.9° N, 35.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Potomac Group, Early/Lower Albian (112.0 - 109.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lithified claystone

• Upchurch, Crane, & Drinnan (1994) 6444; The Quantico plant locality and other exposures of Potomac Group rocks on the Quantico Marine base are characterized by a predominance of cross-bedded sands that show the fining-upwards sequence, and show features characteristic of pond and swale enviornments, as sugessted by Hickey and Doyle (1977)

Size class: macrofossils

Preservation: cast, adpression

Collection methods: surface (in situ),

Primary reference: G. R. Upchurch, P. R. Crane, and A. N. Drinnan. 1994. The Megaflora from the Quantico Locality (Upper Albian), Lower Cretaceous Potomac Group of Virginia. Virginia Museum of Natural History 4:1-57 [H. Sims/H. Lindon/J. Cassara]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 20897: authorized by Hallie Sims, entered by Heather Lindon on 12.06.2002, edited by Jason Cassara

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cycadopsida
 Cycadales - Cycadaceae
Dichotozamites cycadopsis
Dichotozamites cycadopsis Fontaine 1889 cycads
(Fontaine) Berry Seed Plants, Division Unknown
unclassified
  -
Spermatophyta "Diaspore type 1", Spermatophyta "Diaspore type 2", Spermatophyta "Diaspore type 3", Spermatophyta "Diaspore type 4"
Magnoliopsida
  -
aff. Kenella sp., Dicotylophyllum "sp. 1", Dicotylophyllum "sp. 2", Dicotylophyllum "sp. 3", Dicotylophyllum "sp. 4", Dicotylophyllum ovatodecurrens n. sp.
aff. Kenella sp. Samylina 1968
Samylina
Dicotylophyllum "sp. 1" Saporta 1894
cf. D. argillaceum (Velenovsky) Vakhrameev
Dicotylophyllum "sp. 2" Saporta 1894
cf. "Magnolia" amplifolia Heer?
Dicotylophyllum "sp. 3" Saporta 1894
aff. Didromophyllum Upchurch & Dilcher?
Dicotylophyllum ovatodecurrens n. sp. Upchurch et al. 1994
Angiospermae
 Sapindales - Sapindaceae
Sapindopsis "cf. magnifolia/variabilis", Sapindopsis minutifolia n. sp.
Sapindopsis "cf. magnifolia/variabilis" Fontaine 1889 soapberry
Fontaine: entered using old "informal cf." modifier
Sapindopsis minutifolia n. sp. Upchurch et al. 1994 soapberry
 Laurales -
aff. Pabiania "sp. 1", Landonia cf. calophylla
aff. Pabiania "sp. 1" Upchurch and Dilcher 1990
Landonia cf. calophylla Upchurch and Dilcher 1990
Upchurch & Dilcher
 Proteales - Platanaceae
? Platanaceae indet.
? Platanaceae indet. Lestiboudois 1826
Fragments of platanoid foliage
 Nymphaeales - Nymphaeaceae
Nelumbites extenuinervis n. sp., Nelumbites cf. minimus
Nelumbites extenuinervis n. sp. Upchurch et al. 1994 water lily
Nelumbites cf. minimus Vakhrameev water lily
Vakhrameev
 Coniferales -
Coniferales indet., cf. Abietites longifolius
Coniferales indet.
Conifer shoot, genus not determined
cf. Abietites longifolius Berry 1911
(Fontaine) Berry Indeterminate leaves
Pinopsida
 Pinales - Pinaceae
Pinaceae "Winged seed type 1", Pinaceae "Winged seed type 2"
 Pinales - Taxaceae
Athrotaxopsis sp.
Athrotaxopsis sp. Fontaine 1889 yew
 Pinales - Taxodiaceae
Sphenolepis sternbergiana
Sphenolepis sternbergiana Schenk 1871
(Dunker) Schenk
Polypodiopsida
 Equisetales - Equisetidae
Equisetum sp., Equisetum cf. lyellii
Equisetum sp. Linnaeus 1753 horsetail
Rhizome of ?Equisetum
Equisetum cf. lyellii Mantell horsetail
Mantell
unclassified
  -
Tracheophyta indet.
Tracheophyta indet.
Stem with intercalary swelling
Equisetopsida
 Pinidae - Pinidae
Brachyphyllum crassicaule, Araucarites aquiensis, Pseudofrenelopsis parceramosa
Brachyphyllum crassicaule Fontaine
Fontaine
Araucarites aquiensis Fontaine
Fontaine
Pseudofrenelopsis parceramosa Watson
(Fontaine) Watson
unclassified
  -
Arthropoda indet.
Arthropoda indet. Latreille 1829
Plecoptera?