PBDB Collection

USGS 7686, Hondo Creek (Cretaceous of the United States)

Where: Medina County, Texas (29.3° N, 99.1° W: paleocoordinates 35.1° N, 78.2° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Haustator bilira other zone, Escondido Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Haustator bilira assemblage zone.

• group of beds-level stratigraphic resolution

Environment/lithology: estuary or bay; yellow, silty, calcareous sandstone

Size class: mesofossils

Preservation: original calcite, replaced with calcite

Collected by L.W. Stephenson; reposited in the USGS, USNM

• Stephenson collection

Primary reference: C. W. Cooke. 1953. American Upper Cretaceous Echinoidea. United States Geological Survey Professional Paper 254-A:1-44 [W. Kiessling/U. Merkel/M. Clapham]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 4536: authorized by Matt Kosnik, entered by Matt Kosnik on 14.08.1999, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Echinoidea
Calycina - Phymosomatidae	Rachiosoma hondoensis n. sp. Rachiosoma hondoensis n. sp. Cooke 1953 sea urchin
Bryozoa
-	Bryozoa indet. Bryozoa indet. Ehrenberg 1831 Bryozoa (encrusting and rolling)
Polychaeta
Sabellida - Serpulidae	Serpula sp. Serpula sp. Linnaeus 1758 Serpula sp.
Cephalopoda
Ammonitida - Sphenodiscidae	Sphenodiscus pleurisepta, "Sphenodiscus lenticularis" = Sphenodiscus lobatus, Sphenodiscus intermedius Sphenodiscus pleurisepta Conrad 1857 ammonite Sphenodiscus pleurisepta (Conrad) "Sphenodiscus lenticularis" = Sphenodiscus lobatus Tuomey 1856 ammonite Sphenodiscus lenticularis (Owen) Sphenodiscus intermedius Böse 1928 ammonite Sphenodiscus intermedius Boese
Nautilida - Nautilidae	Eutrephoceras dekayi Eutrephoceras dekayi Morton 1834 nautiloid Eutrephoceras dekayi (Morton)
Bivalvia
Nuculanida - Nuculanidae	Nuculana sp. Nuculana sp. Link 1807 pointed nut clam Nuculana sp.
Nuculanida - Malletiidae	Malletia longfrons Malletia longfrons clam Malletia longfrons (Conrad)
Cardiida - Cardiidae	Trachycardium sp. Trachycardium sp. Mörch 1853 cockle Trachycardium sp.
Ostreida - Ostreidae	Ostrea plumosa, Ostrea bella, Ostrea sp., Crassostrea cortex Ostrea plumosa Morton 1833 oyster Ostrea plumosa Morton Ostrea bella oyster Ostrea bella Ostrea sp. Linnaeus 1758 oyster Ostrea sp. Crassostrea cortex oyster Crassostrea cortex (Conrad)
Pectinida - Anomiidae	Anomia (Anomia) ornata Anomia (Anomia) ornata Gabb 1876 jingle Anomia (Anomia) ornata Gabb
Arcida - Arcidae	Linter sp., Striarca cuneata Linter sp. Stephenson 1937 clam Linter sp. Striarca cuneata clam Striarca cuneata Gabb
Gastropoda
-	Gastropoda indet. Gastropoda indet. Cuvier 1795 snail indeterminate gastropods
Neogastropoda - Buccinidae	Buccinopsis sp. n. sp., Buccinopsis perryi Buccinopsis sp. n. sp. Conrad 1857 true whelk Buccinopsis n. sp. (smooth and roun - originally entered as "Buccinopsis n. sp." Buccinopsis perryi true whelk Buccinopsis perryi Conrad
Neogastropoda - Volutidae	Liopeplum cretaceum Liopeplum cretaceum Conrad 1858 volute Liopeplum cretaceum (Conrad)
Sorbeoconcha - Naticidae	Banis sp., Gyrodes sp. Banis sp. Stephenson 1941 moon snail Banis ? sp. Gyrodes sp. Conrad 1860 moon snail Gyrodes sp.
Cerithioidea - Turritellidae	Turritella cf. forgemoli, "Turritella (Sohlitella) trilira" = Turritella trilira Turritella cf. forgemoli turret shell Turritella cf. T. forgemoli Coquan - originally entered as "Turritella cf. forgemoli" "Turritella (Sohlitella) trilira" = Turritella trilira Conrad 1860 turret shell Turritella (Sohlitella) trilira (C
Deuteropoda
-	Malacostraca indet. Malacostraca indet. Latreille 1802 Crab parts
Demospongiae
Clavulina - Clionaidae	Cliona sp. Cliona sp. demosponge Clione sp.