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. 2020 Sep 15;8:e9771. doi: 10.7717/peerj.9771

Table 1. Measurements and histological features of the femora and tibiae of Vespersarus paranaensis that were analyzed.

Bone Specimen Circum ference (mm) Growth marks Growth Marks Endosteal lamellae EFS Medulary cavity
%
Bone tissue type Ontogenetic status Histological Class
Femur CP.V 4136 45.86 Yes Annuli Yes No 44.29% PF Juvenile I
CP.V 4142 47.90 Yes LAGs Yes No 46.64 % PF Juvenile II
CP.V 4206 50.11 Yes LAGs Yes No 50.36% PF Juvenile II
CP.V 4264 58.37 Yes LAGs Yes No 55.63% PF Sexually mature III
CP.V 2277 *63.27 Yes Double and triple LAGs No (?) No 41.50% PF Sexually mature IV
Tibia CP.V 4312a *42.00 Yes LAGs Yes No 42% PF Juvenile (?) I
CP.V 4203 Yes LAGs Yes No PF Juvenile (?) I
CP.V 4140 41.29 Yes LAGs Yes No 27% PF Juvenile/Sexually mature II
CP.V 4000 Yes LAGs Yes No PF Juvenile/Sexually mature II
CP.V 4130 41.18 Yes LAGs Yes Yes 30.78% PF/WB Full grown III
CP.V 2385 44.88 Yes LAGs Yes Yes 31.78% PF/WB Full grown III

Notes:

Circumferences in the mid-shaft in millimeters. Type of growth mark and histological features used to ontogenetic status determination.

EFS, external fundamental system; LAG, lines of arrested growth; PF, parallel-fibered bone; WB, woven bone. Asterisks represent specimens measured in the proximal diaphysis.