PBDB Collection

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

unclassified

	Scaphapod indet.
Gastropoda - Aporrhaidae

	aff. Drepanocheilus cuthandensis
	originally entered as "Drepanochilus? aff. cuthandensis"
Bivalvia - Nuculida - Nuculidae

	cf. Nucula stantoni Stephenson 1923
	originally entered as "Nucula cf. stantoni"
Bivalvia - Trigoniida - Megatrigoniidae

	Pterotrigonia sp. van Hoepen 1929
Bivalvia - Lucinida - Lucinidae

	? Lucinidae indet. Fleming 1828
	originally entered as "?Lucinid indet."
Bivalvia - Poromyida - Poromyidae

	cf. Cymella ironensis
	originally entered as "Cymella cf. ironensis"
Bivalvia - Hiatellida - Hiatellidae

	Panopea anacachoensis n. sp.
	originally entered as "Panopea anacachoensis n. sp."
Bivalvia - Solenida - Pharidae

	aff. Leptosolen biplicata (Conrad 1858)
	originally entered as "Leptosolen aff. biplicatus"
Bivalvia - Cardiida - Cardiidae

	Protocardia spillmani

	Granocardium sp. (Gabb 1869)
	synonym of Trachycardium
Bivalvia - Arcida - Cucullaeidae

	Cucullaea sp. Lamarck 1801
Bivalvia - Arcida - Arcidae

	cf. Arca carolinensis Conrad 1849
	recombined as Barbatia carolinensis
	originally entered as "Arca cf. carolinensis"
Bivalvia - Myalinida - Inoceramidae

	cf. Inoceramus balticus Bohm 1907
	originally entered as "Inoceramus cf. balticus"
Bivalvia - Ostreida - Gryphaeidae

	Pycnodonte mutabilis
Bivalvia - Pectinida - Limidae

	Limea reticulata
Bivalvia - Pectinida - Neitheidae

	Neithea quinquecostata (Sowerby 1814)
Cephalopoda

	? Nautiloidea indet. Agassiz 1847
	originally entered as "?Nautiloid indet."
Cephalopoda - Ammonitida - Baculitidae

	Baculites taylorensis Adkins 1929
see common names

Geography

Country:	United States	State/province:	Texas	County:	Medina
Coordinates:	29.3° North, 99.1° West (view map)
Paleocoordinates:	34.9° North, 72.5° West
Basis of coordinate:	based on nearby landmark
Geographic resolution:	small collection

Time

Period:	Cretaceous	Epoch:	Late/Upper Cretaceous
Stage:	Campanian	10 m.y. bin:	Cretaceous 7
*Epoch:	Senonian
*International age/stage:	Middle Campanian
Key time interval:	Middle Campanian	Ammonoid zone:	Baculites maclearni
Age range of interval:	83.60000 - 72.10000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:	Anacacho Limestone
Local section:	King's Water Hole	Local bed:	unit 3
Stratigraphic resolution:	bed
Stratigraphy comments: Swezey and Sullivan (2004) correlate this bed to the Baculites maclearni zone., which is middle Campanian in Gradstein et al., 2004.

Lithology and environment

Primary lithology:	"limestone"
Environment:	marine indet.
Geology comments: lithology described as chalky limestone

Taphonomy

Modes of preservation:	body
Size of fossils:	mesofossils

Collection methods and comments

Collection excludes:	some macrofossils
Collection methods:	field collection
Reason for describing collection:	biostratigraphic analysis
Museum repositories:	USGS

Metadata

Database number:	3604
Authorizer:	M. Patzkowsky	Enterer:	K. Layou
Modifier:	L. Eccles	Research group:	GCP,marine invertebrate
Created:	1999-08-05 10:58:18	Last modified:	2011-09-30 10:11:41
Access level:	the public	Released:	1999-08-05 10:58:18
Creative Commons license:	CC BY

Reference information

Primary reference:

216.

W. P. Elder. 1996. Bivalves and Gastropods from the Middle Campanian Anacacho Limestone, south central Texas. Journal of Paleontology 70(2):247-271 [M. Patzkowsky/K. Layou/J. Alroy]

Secondary references:

29915

J. A. Sessa, T. J. Bralower, M. E. Patzkowsky, J. C. Handley, and L. C. Ivany. 2012. Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain. Paleobiology 38(2):218-239 [M. Patzkowsky/J. Sessa/J. Sessa]