Se registran ocho ejemplares representativos provenientes de diversos proyectos de investigación, publicados o en estudio, colectados en secuencias del Paleozoico, Mesozoico y Cenozoico del país y procedentes de las regiones de Cajamarca, Lima y Pisco. Estos ejemplares presentan una significación especial como documentación base y de consulta para la asignatura de Paleobiología: Tomiodendron peruvianum (Gothan) Pfefferkorn y Alleman comb.nov. (in press); “Cyclostigma” pacifica (Steinmann); Obandotheca laminensis Erwin, Pfefferkorn y Alleman; Nothorhacopteris peruviana (Berry); Weichselia peruviana Zeiller; Brachyphylum sp. Zeiller y DICOTYLEDONEAE.

A reference taxonomic collection deposited in the Department of Paleontology of the Museum of Natural History “Vera Alleman Haeghebaert” of Ricardo Palma University consists of the identifi cation, registration and description of seventeen specimens of the genus Raimondiceras Spath 1924, of which twelve specimens were attributed to the species Raimondiceras raimondii (Gabb, 1877). Th e initial taxonomic study was based on the publications of William More Gabb and Carlos Lissón. In addition, the identifi cation key of the Ammonoidea species of the Morro Solar Group, Valanginian-Hauterivian de Lima, Peru was used. Having lost all the “types”, original specimens of the species, we intend to start the complementary and updated description of the species. Th e place where Antonio Raimondi and Carlos Lissón obtained the fi rst specimens of R. raimondii was specifi ed: the La Herradur...

Record of a total of eleven oysters from the Cajamarca and Ancash región, belonging to four genera: Aetostreon Bayle, 1878, Cameleolopha Vyalov, 1936, Exogyra Say, 1820 and Nicaisolopha Vyalov, 1936, all of the upper Cretaceous of the regions of Cajamarca, Chota, La Encañada and Ancash, Sihuas.  Determinación of four species: Exogyra africana Coquand, 1862 var. peruana Paulcke, 1903. Exogyra (Costagyra) olisiponensis Sharpe, 1850 var. duplex Paulcke, 1903, Exogyra mermeti (Coquand, 1862) and Nicaisolopha nicaisei Vyalov, 1936 was made.

Taxonomic collection of reference reposited in the Paleontology Department of the Natural History Museum“Vera Alleman Haeghebaert”of the Ricardo Palma University. It consists of the identification, register and the description of thirty-two specimens of the genus Raimondiceras Spath, 1924, of which twelve were attributed to the species Raimondiceras raimondii (Gabb, 1877), fifteen to the species Raimondiceraspflückeri (Lisson, 1904) and the remaining five to Raimondiceras sp. The initial taxonomic study was based on the original publications and fossils accessibles to the original authors; In addition, the identification key of the AMMONOIDEA species of the Morro Solar Group, Valanginian-Hauterivian of Lima, Peru (Alleman, 2014) was used.

Colección taxonómica de referencia depositada en el Departamento de Paleontología del Museo de Historia Natural “Vera Alleman Haeghebaert” de la Universidad Ricardo Palma. Consiste en la identificación, registro y descripción de treinta y dos ejemplares del género Raimondiceras Spath, 1924, de los cuales doce ejemplares fueron atribuidos a la especie Raimondiceras raimondii (Gabb, 1877), quince a la especie Raimondiceraspflückeri (Lisson, 1904) y los cinco restantes a Raimondiceras sp. El estudio taxonómico inicial se apoyó sobre las publicaciones y fósiles originales accesibles de los autores originales; además se utilizó la clave de identificación de las especies de AMMONOIDEA del Grupo Morro Solar, Valanginiano-Hauteriviano de Lima, Perú (Alleman, 2014).

Se registran ocho ejemplares representativos provenientes de diversos proyectos de investigación, publicados o en estudio, colectados en secuencias del Paleozoico, Mesozoico y Cenozoico del país y procedentes de las regiones de Cajamarca, Lima y Pisco. Estos ejemplares presentan una significación especial como documentación base y de consulta para la asignatura de Paleobiología: Tomiodendron peruvianum (Gothan) Pfefferkorn y Alleman comb.nov. (in press); “Cyclostigma” pacifica (Steinmann); Obandotheca laminensis Erwin, Pfefferkorn y Alleman; Nothorhacopteris peruviana (Berry); Weichselia peruviana Zeiller; Brachyphylum sp. Zeiller y DICOTYLEDONEAE.

A reference taxonomic collection deposited in the Department of Paleontology of the Museum of Natural History “Vera Alleman Haeghebaert” of Ricardo Palma University consists of the identifi cation, registration and description of seventeen specimens of the genus Raimondiceras Spath 1924, of which twelve specimens were attributed to the species Raimondiceras raimondii (Gabb, 1877). Th e initial taxonomic study was based on the publications of William More Gabb and Carlos Lissón. In addition, the identifi cation key of the Ammonoidea species of the Morro Solar Group, Valanginian-Hauterivian de Lima, Peru was used. Having lost all the “types”, original specimens of the species, we intend to start the complementary and updated description of the species. Th e place where Antonio Raimondi and Carlos Lissón obtained the fi rst specimens of R. raimondii was specifi ed: the La Herradur...

Record of a total of eleven oysters from the Cajamarca and Ancash región, belonging to four genera: Aetostreon Bayle, 1878, Cameleolopha Vyalov, 1936, Exogyra Say, 1820 and Nicaisolopha Vyalov, 1936, all of the upper Cretaceous of the regions of Cajamarca, Chota, La Encañada and Ancash, Sihuas.  Determinación of four species: Exogyra africana Coquand, 1862 var. peruana Paulcke, 1903. Exogyra (Costagyra) olisiponensis Sharpe, 1850 var. duplex Paulcke, 1903, Exogyra mermeti (Coquand, 1862) and Nicaisolopha nicaisei Vyalov, 1936 was made.