Genus: Eodromeus MARTINEZ, SERENO, ALCOBER, COLOMBI, RENNE, MONTANEZ & CURRIE, 2011
Etymology: Greek, eos, "dawn" and Greek, dromaeus, "runner."

Species: murphi MARTINEZ, SERENO, ALCOBER, COLOMBI, RENNE, MONTANEZ & CURRIE, 2011
Etymology: In honor of the Earthwatch volunteer who discovered the holotype specimen. J. Murphy.

Holotype: PVSJ 560

Locality: Valle de la Luna, 30°04'3.5"S, 67°56'11.4"W, Ischigualasto Provinical Park, San Juan Province, Argentina.

Horizon: Ischigualasto Formation, Valle de la Luna Member.

Biostratigraphy:

Age: Carnian Stage, Late Triassic Epoch, Late Triassic.

Material: Fragmentary skull and nearly complete articulated skeleton, the axial colume is complete and articulated from the proatals to the penultimate caudal vertebrae, except for portions of CA5 and 9, and intervening 3 caudal vertebrae (CA6-8), a few of the vestigal caudal vertebrae at the distal tip of the tail, and a few posterior cervical ribs and gastralia. It is missing both scacuplocoracoids, the distal ends of both humeri, the remainder of the right forelimb, the phalanges of left digit I, and distal end of the left ischium, the right astragalus and calcaneum, right metatarals 4 and 5 and left metatarsls 204, and most pedal phalanges.

Referred material:

PVSJ 561: Articulated left maxilla, nasal and most of the jugal and right femur. (Note: The cranial piece was found on the underside of the block containing the holotype skeleton (PVSJ 560), and the femur was found a few centimeters away in the trench around the holotype skeleton. It is possible they do not belong to the same individual.

PVSJ 562: Partial disarticulated skeleton including the posterior portion of the skull in articulation with the proatalas, atlas and cervical vertebrae 2-8 with associated ribs, isolated vertebrae inclduding two mid dorsals (?D4, 6), and three posterior dorsals (?D11, 13, 14), an articulated series of 9 anterior caudal vertebrae with chevrons (?CA2-10), left and right scapulocoracoids, an articulated left forelimb lacking manual phalanges distal to the proximal phalanx, left and right ischia lacking thier distal ends, left femur, tibia and fibula, and articulated right distal tibia, fibula, calcaneum and distal tarsal 4, and the distal end of metatarsal 4 in articulation with all phalanges of pedal digive IV. Found a few meters away from the holotype.

PVSJ 563:

Locality: Valle de la Luna, 30°04'3.5"S, 67°56'11.4"W, Ischigualasto Provinical Park, San Juan Province, Argentina.

Horizon: Ischigualasto Formation, La Penna Member.

Biostratigraphy:

Age: Carnian Stage, Late Triassic Epoch, Late Triassic.

Material:

PVSJ 534: Left femur, proximal right tibia, a partially articulated left ankle and hind limb consistiong of the astragalus, calcaneum, distal tarsal 3 and 4, and the proximal ends of metatarsals 1-4.

 

Locality: Valle de la Luna, 30°04'3.5"S, 67°56'11.4"W, Ischigualasto Provinical Park, San Juan Province, Argentina.

Horizon: Ischigualasto Formation, Cancha de Bochas Member.

Biostratigraphy:

Age: Carnian Stage, Late Triassic Epoch, Late Triassic.

Material:

PVSJ 877: Anterior cervical (?C3) centrum.