La Cancha (Paleogene of Argentina)

Also known as GBV-4, Gran Barranca Fauna de "La Cancha"

Where: Chubut, Argentina (45.7° S, 68.7° W: paleocoordinates 47.6° S, 59.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Tinguirirican mammal zone, Vera Member (Sarmiento Formation), Tinguirirican (36.0 - 29.0 Ma)

• "a flat exposure with a surface area roughly that of a "soccer pitch" near the top of the Vera Member at Profile K" of Gran Barranca.

•Tinguirirican SALMA, Early Oligocene (Woodburne et al. 2014).

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Primary reference: R. H. Madden, R. F. Kay, M. G. Vucetich and A. A. Carlini. 2010. Gran Barranca: a twenty-three million year record of Middle-Cenozoic faunal evolution in Patagonia. In R. H. Madden, A. A. Carlini, M. G. Vucetich, R. F. Kay (eds.), The Paleontology of Gran Barranca: Evolution and Environmental Change through the Middle Cenozoic of Patagonia 423-439 [J. Zijlstra/J. Zijlstra]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 176200: authorized by Jelle Zijlstra, entered by Jelle Zijlstra on 31.01.2016, edited by Grace Varnham

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Theriamorpha - Peradectidae
Canchadelphys cristata n. gen. n. sp.3
Canchadelphys cristata n. gen. n. sp.3 Goin et al. 2010 marsupial
MPEF-PV 4460 (left M?2, holotype), 4461 (right M?3), 4242 (right M?1)
 Microbiotheria - Microbiotheriidae
Eomicrobiotherium matutinum n. sp.3 Goin et al. 2010 marsupial
MPEF-PV 4369 (m1, holotype), 4370 (m2), 4352 (m2), 4350 (m2 trigonid), 4373 (m3), 4232 (M1), 4374 (M2)
Clenia brevis n. sp.3 Goin et al. 2010 marsupial
MPEV-PV 4368 (m1, holotype), 4353 m1, 4364 m1, 4349 m1, 4361 m1, 4358 m2, 4354 m2, 4363 m2, 4355 m3, 4360 m3, (unnumbered) maxilla M2-3, 4146 maxilla M2-3, 4238 M1, 4372 M2. Tentatively referred: 4346 mx, 4356 mx
Microbiotherium sp.3 Ameghino 1887 marsupial
MPEF-PV 4365 mx, 4348 mx, 4366 dentary p3-m1, 4371 Mx, 4362 M1, 4367 Mx, 4359 M?3, 4135 M?3
 Theriamorpha - Sternbergiidae
Sternbergiidae indet.3 Szalay 1994 marsupial
MPEF-PV 4459 (left M4), 4457 (right mx)
 Paucituberculata - Pichipilidae
? Pichipilidae indet.3 Marshall 1980 marsupial
MPEF-PV 4410 (right mx), 4402 (left mx), 4494 (right dentary fragment with m3–4)
 Paucituberculata - Caenolestidae
Pilchenia antiqua n. sp.3 Goin et al. 2010 marsupial
MPEF-PV 4490 (maxillary P3-M2, holotype), 4486 (maxillary M2-3), 4482 (fragment M1), 4483 (fragment M1), 4484 (M2), 4148 (fragment M2), 4479 (M3), 4481 (M3), 4480 (M3), 4478 (M3), 4474 (M4), 4129 (dentary p3, partial m1), 4126 (p3), 4489 (m1), 4235 (m2), 4470 (m2), 4488 (partial m2), 4469 (m3), 4465 (m3), 4468 (m3), 4467 (m3), 4471 (m3), 4466 (m3), 4464 (fragment m3), 4462 (m4), 4463 (m4)
 Polydolopimorphia - Polydolopidae
Kramadolops fissuratus n. sp.3 Goin et al. 2010 metatherian
MPEF-PV 4342 (M1, holotype), isolated teeth
 Polydolopimorphia - Glasbiidae
Periakros ambiguus n. gen. n. sp.3
Periakros ambiguus n. gen. n. sp.3 Goin et al. 2010 metatherian
MPEF-PV 4498 (Mx, holotype). Tentatively referred: 4496 fragment Mx, 4495 fragment maxillary with two Mx, 4493 fragment Mx
 Polydolopimorphia - Argyrolagidae
Klohnia major n. sp.3 Goin et al. 2010 metatherian
MPEF-PV 4279 (dentary m1-3), isolated teeth and dentary and maxilla fragments
Klohnia cf. major3 Goin et al. 2010 metatherian
MPEF-PV, isolated teeth and dentary and maxilla fragments
 Polydolopimorphia - Rosendolopidae
Rosendolopidae indet.3 Goin et al. 2010 metatherian
MPEF-PV 4477 Mx, 4476 Mx, 4446 Mx
Rosendolops sp.3 Goin and Candela 1996 metatherian
MPEF-PV 4487 Mx, 4497 Mx
Rosendolops ebaios n. sp.3 Goin et al. 2010 metatherian
MPEF-PV 4449 (M?3, holotype), 4477 M?1, 4446 M?2, 4476 M?2. Tentatively referred: 3917 mx
Hondonadia cf. fierroensis3 metatherian
MPEF-PV 4412 mx, 4388 mx, 4439 Mx
Hondonadia sp.3 Goin and Candela 1998 metatherian
MPEF-PV 4416 mx, 4142 mx, 4424 Mx fragment, 4446 Mx, 4485 Mx
Hondonadia pumila n. sp.3 Goin et al. 2010 metatherian
MPEF-PV 4239 (maxilla M2-3, holotype); isolated molars and dentaries
Hondonadia praecipitia n. sp.3 Goin et al. 2010 metatherian
MPEF-PV 4144 (maxilla M1-4, holotype), 4383 maxilla M2-3, 4384 maxilla M1-2, 4435 M1, 4442 M1, 4386 M1, 4151 M1, 4429 M2, 4438 M2, 4441 M2, 4437 M2, 4434 M3, 4436 M3, 4132 dentary with p2-3 roots and m1, 4233 m1, 4423 m2, 4418 m2, 4229 fragment m2, 4417 m2, 4385 m2, 4250 m2, 4420 m3, 4419 fragment mx. Referred: 4440 fragment Mx, 4427 fragment Mx, 4428 fragment Mx, 4430 fragment Mx, 4432 fragment Mx, 4228 fragment Mx, 4431 fragment Mx, 4433 fragment Mx, 4415 mx, 4422 mx, 4414 mx, 4425 mx, 4426 mx, 4413 mx, 4421 mx
 Polydolopimorphia -
Praedens aberrans n. gen. n. sp.3
Praedens aberrans n. gen. n. sp.3 Goin et al. 2010 metatherian
MPEV-PV 4243 (Mx, holotype), 7 referred isolated teeth, 3 tentatively referred isolated teeth
 Sparassodonta - Hathliacynidae
"Hathliacynidae indet." = Hathlyacininae3, "? Hathliacynidae indet." = Hathlyacininae3
"Hathliacynidae indet." = Hathlyacininae3 Ameghino 1894 metatherian
MPEF-PV 4345 (right M?1)
"? Hathliacynidae indet." = Hathlyacininae3 Ameghino 1894 metatherian
MPEF-PV 4344 (right ?lower premolar)
 Notoungulata - Archaeohyracidae
Protarchaeohyrax gracilis5 Roth 1904 notoungulate
Archaeotypotherium propheticus5 Ameghino 1897 notoungulate
 Notoungulata - Interatheriidae
Eopachyrucos pliciformis5 Simpson 1967 notoungulate
Santiagorothia chiliensis5 Hitz et al. 2000 notoungulate
Proargyrohyrax sp.5 Hitz et al. 2000 notoungulate
 Notoungulata - Notopithecidae
Guilielmoscottia sp.5 Ameghino 1901 notoungulate
 Notoungulata -
Eomorphippus sp.4 Ameghino 1901 notoungulate
MPEF-PV 6217, isolated upper premolars and molars
Eomorphippus obscurus4 Ameghino 1901 notoungulate
MPEF-PV 6154, isolated upper and lower premolars and molars; MPEF-PV 6188, left lower m3; MPEF-PV 6197, isolated lower incisor; MPEF-PV 6791, isolated upper incisor; MPEF-PV 7945, left dentary fragment with p4-m3
"Eomorphippus pascuali" = Rosendo pascuali4 Simpson 1967 notoungulate
MPEF-PV 6159, right upper M1-2 and left upper M3, MPEF-PV 6243, right m2
 Notoungulata - Notohippidae
Puelia sp.4 Roth 1902 notoungulate
MPEF-PV 6170, right and left upper molars; MPEF-PV 5732, upper molar; MPEF-PV 6180, P4 and M1; MPEF-PV 6200, right lower p3; MPEF-PV 6206, left upper M1
 Cingulata - Chlamyphoridae
Stenotatus sp.1 Ameghino 1891 edentate
 Cingulata - Glyptodontidae
Glyptatelinae indet.1 Castellanos 1932 glyptodon
 Cingulata - Peltephilidae
 Cingulata - Dasypodidae
Machlydotherium sp.1 Ameghino 1902 armadillo
Astegotheriini indet.1 Ameghino 1906 armadillo
Parutaetus chilensis2 Carlini et al. 2009 armadillo
Barrancatatus maddeni n. sp.2 Carlini et al. 2010 armadillo
osteroderms in MPEF PV
Barrancatatus rigidus2 Ameghino 1902 armadillo
"Meteutatus sp." = Meteutatus2 Ameghino 1902 armadillo
"Sadypus sp." = Meteutatus1 Ameghino 1902 armadillo
Sadypus minutus n. sp.2 Carlini et al. 2010 armadillo
groups of osteoderms in MPEF PV
Sadypus aff. confluens2 Ameghino 1902 armadillo
 Theriamorpha -
Stegotheriini indet.2 Ameghino 1889 edentate