Locality 2448 (Cretaceous of Mexico)

Also known as Temalac, Guerrero.

Where: Guerrero, Mexico (17.8° N, 100.0° W: paleocoordinates 24.0° N, 82.0° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Mexcala Formation, Early/Lower Maastrichtian (70.6 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine

Primary reference: M. C. Perrilliat, F.J. Vega, and R. Corona. 2000. Early Maastrictian mollusca from the Mexcala formation of the state of Guerro, southern Mexico. Journal of Paleontology 74(1):7-24 [M. Kosnik/M. Kosnik/J. Alroy]more details

PaleoDB collection 7461: authorized by Matt Kosnik, entered by Matt Kosnik on 18.07.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Pectinoidae
Neithea (Neithea) cf. youngi scallop
Neithea (Neithea) cf. N. (N.) youngi Myers
 Pectinida - Plicatulidae
Plicatula batnensis scallop
Plicatula batnensis Coquand
 Carditida - Astartidae
Astarte similis Munster 1840 clam
Astarte similis Muenster
 Pholadida - Corbulidae
Corbula cf. paracrassa Wade 1926 clam
Corbula cf. C. paracrassa Wade
Caestocorbula crassiplica Gabb 1860 clam
Corbula crassiplica Gabb
 Cardiida - Arcticidae
Veniella cf. jamaicensis clam
Veniella cf. V. jamaicensis (Trechmann)
Veniella sp. Stoliczka 1870 clam
Veniella sp.
 Cardiida - Cardiidae
Cardium sp. Linnaeus 1758 cockle
Cardium sp.
? Protocardia sp. Beyrich 1845 cockle
Protocardia? sp.
 Nuculida - Nuculidae
Nucula ciboloensis nut clam
Nucula ciboloensis Stephenson
 Protobranchia - Nuculanidae
Nuculana corsicana pointed nut clam
Nuculana corsicana Stephenson
Gastropoda
 Ptenoglossa - Epitoniidae
Striaticostatum cf. bexarense Stephenson 1941 wentletrap
Striaticostatum cf. S. bexarense Stephenson
Epitonium cf. faearium Dockery 1993 wentletrap
Epitonium cf. E. faearium Dockery
Belliscala sp. Stephenson 1941 wentletrap
Belliscala sp.
Opalia (Opalia) "sp. A" Adams and Adams 1858 wentletrap
Opalia (Opalia) sp. A Perrilliat et al. 2000
Opalia (Opalia) "sp. B" Adams and Adams 1858 wentletrap
Opalia (Opalia) sp. B Perrilliat et al. 2000
 Cephalaspidea - Cylichnidae
Cylichna secalina Shumard 1861 snail
Cylichna secalina Shumard
  - Urocoptidae
Holospira sp. Martens 1860 snail
Holospira sp.
 Triphoroidea - Triforidae
Cerithiella aequalirata Dockery 1993 snail
Cerithiella aequalirata Dockery
Cerithiella nodoliratum Wade 1926 snail
Cerithiella nodoliratum Wade
 Architaenioglossa - Ampullinidae
Pseudamaura cf. lepta Sohl 1964 snail
Pseudamaura cf. P. lepta Sohl
 Neogastropoda - Fasciolariidae
Remera sp. Stephenson 1941 snail
Remera sp.
Bellifusus curvicostatus Wade 1926 snail
Bellifusus curvicostatus curvicostatus (Wade)
? Paleopsephaea sp. Wade 1926 snail
Paleopsephaea? sp.
Paleopsephaea mutabilis Wade 1926 snail
Paleopsephaea mutabilis Wade
Drilluta gloriae snail
Drilluta gloriae Perrilliat et al.
 Neogastropoda - Pholidotomidae
Volutomorpha cf. retifera Dall 1907 snail
Volutomorpha cf V. retifera Dall
 Neogastropoda - Tudiclidae
Pyropsis lanhami snail
Pyropsis lanhami Stephenson
 Stromboidea - Rostellariidae
? Calyptraphorus sp. Conrad 1857 snail
Calyptraphorus? sp.
 Stromboidea - Aporrhaidae
Pugnellus (Pugnellus) densatus snail
Pugnellus (Pugnellus) densatus Conrad
 Naticoidea - Naticidae
Euspira rectilabrum Conrad 1858 moon snail
Euspira rectilabrum Conrad
Amaurellina guerrera moon snail
Amaurellina guerrera Perrilliat et al.
Gyrodes (Gyrodes) major Wade 1926 moon snail
Gyrodes (Gyrodes) major Wade
Gyrodes (Gyrodes) supraplicatus Conrad 1858 moon snail
Gyrodes (Gyrodes) supraplicatus (Conrad)
 Sorbeoconcha - Potamididae
Potamides temalacensis, "Ptychopotamides ancestralus" = Potamides (Ptychopotamides)
Potamides temalacensis horn snail
Potamides temalacensis Perrilliat et al.
"Ptychopotamides ancestralus" = Potamides (Ptychopotamides) horn snail
Ptychopotamides ancestralus Perrilliat et al.
 Sorbeoconcha - Turritellidae
Turritella cf. chalybeatensis turret shell
Turritella cf. T. chalybeatensis Sohl
Turritella vertebroides Morton 1834 turret shell
Turritella vertebroides Morton
"Haustator trilira" = Turritella trilira Conrad 1860 turret shell
Turritella trilira Conrad
 Sorbeoconcha - Pachychilidae
"Pyrazus pyramidatus" = Jponsia geslini
"Pyrazus pyramidatus" = Jponsia geslini Deshayes 1833 snail
Pyrazus pyramidatus Deshayes
 Heterostropha - Ringiculidae
Ringicula (Ringicula) cf. clarki Gardner 1916 snail
Ringicula (Ringicula) cf. R. (R.) clarki Gardner
 Neritoidea - Neritidae
Nerita cf. divaricata snail
Nerita cf. N. divaricata Orbigny
 Architectonicoidea - Architectonicidae
Granosolarium coffea Sohl 1964 snail
Granosolarium coffea Sohl
 Amberleyoidea - Nododelphinulidae
Nododelphinula diminuta snail
Nododelphinula diminuta Perrilliat et al.
 Seguenzioidea - Calliotropidae
Calliomphalus (Planolateralus) argenteus snail
Calliomphalus (Planolateralus) argenteus Wade
Calliomphalus (Planolateralus) mexcalensis snail
Calliomphalus (Planolateralus) mexcalensis Perrilliat et al.
Calliomphalus (Planolateralus) sp. Cossmann 1888 snail
Calliomphalus (Planolateralus) sp.
Calliomphalus (Planolateralus) cf. decoris Sohl 1960 snail
Calliomphalus (Planolateralus) cf. C. (P.) decoris Sohl