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Mesembrioxylon mazzonii

Coniferales - Podocarpaceae

Taxonomy
Mesembrioxylon mazzonii was named by Petriella (1972) [Adicional samples: LP-PB 9062, LP-PB 9063]. It is considered to be a form taxon. Its type specimen is Holotype: LP-PB 9064, a wood, and it is a 3D body fossil. Its type locality is Puesto Fernández - NF Angiosperms, which is in a Paleocene terrestrial sandstone in the Cerro Bororó Formation of Argentina.

It was recombined as Podocarpoxylon mazzonii by Müller-Stoll and Schultze-Motel (1990), Brea et al. (2011), Ruiz et al. (2017), Vera et al. (2019), Stiles et al. (2020), Rombola et al. (2021), Passalia et al. (2023), Vera et al. (2024), Villegas et al. (2024), Ruiz et al. (2025).

Sister species lacking formal opinion data

Synonyms
Synonymy list
YearName and author
1972Mesembrioxylon mazzonii Petriella p. 173 figs. Lám. III A-E; fig. 3
1990Podocarpoxylon mazzonii Müller-Stoll and Schultze-Motel
1998Circoporoxylon gregussi Del Fueyo p. 44 figs. 1-7
2011Podocarpoxylon mazzonii Brea et al. p. 18
2017Podocarpoxylon mazzonii Ruiz et al. p. 434
2019Podocarpoxylon mazzonii Vera et al.
2020Podocarpoxylon mazzonii Stiles et al.
2021Podocarpoxylon mazzonii Rombola et al.
2023Podocarpoxylon mazzonii Passalia et al. p. 44 figs. 1-7
2024Podocarpoxylon mazzonii Vera et al. p. 3
2024Podocarpoxylon mazzonii Villegas et al.
2025Podocarpoxylon mazzonii Ruiz et al. p. 5

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RankNameAuthor
kingdomPlantae
phylumSpermatophyta
phylumPinophyta
orderConiferales
RankNameAuthor
familyPodocarpaceaeEndlicher 1847
genusMesembrioxylonSeward 1919
speciesmazzonii

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Mesembrioxylon mazzonii Petriella 1972
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Diagnosis
ReferenceDiagnosis
B. Petriella 1972Anillos de crecimiento presentes, poco conspicuos. Traqueidas cuadrangulares o rectangulares, lúmen de las mismas circular; punteaduras exclusivamente radiales, areoladas, uniseriadas, rara vez biseriadas, separadas, circulares. Crásulas presentes. Campos de cruzamiento con 1-2 punteaduras simples o casi simples, fenestriformes. Radios uni y biseriados de 1-38 células de altura.
Measurements
No measurements are available
No ecological data are available

Age range: Early/Lower Paleocene or 66.00000 to 61.66000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Paleocene66.0 - 61.66Argentina (Chubut) Mesembrioxylon mazzonii (type locality: 169852 172212)