3,643
Views
7
CrossRef citations to date
0
Altmetric
Short Communications

Triassic nursery? Evidence of gregarious behavior in juvenile pseudosuchian archosaurs as inferred by humeral histology of Aetosaurus ferratus (Norian; southern Germany)

ORCID Icon, ORCID Icon, ORCID Icon, ORCID Icon & ORCID Icon
Article: e2168196 | Received 03 Aug 2022, Accepted 19 Dec 2022, Published online: 12 Feb 2023

Figures & data

FIGURE 1. Aetosaurus ferratus humerus morphology of A, SMNS 5770-21 and B, SMNS 5770-2; C, bone microstructure of SMNS 5770-21; D, cross sections of SMNS 5770-21 in normal transmitted and E, F, cross-polarized light; G, bone microstructure of SMNS 5770-2; H, cross sections of SMNS 5770-2 in normal transmitted light and I, J, cross-polarized light. Scale bars equal 10 mm for A and B, and 1 mm for C–J.

FIGURE 1. Aetosaurus ferratus humerus morphology of A, SMNS 5770-21 and B, SMNS 5770-2; C, bone microstructure of SMNS 5770-21; D, cross sections of SMNS 5770-21 in normal transmitted and E, F, cross-polarized light; G, bone microstructure of SMNS 5770-2; H, cross sections of SMNS 5770-2 in normal transmitted light and I, J, cross-polarized light. Scale bars equal 10 mm for A and B, and 1 mm for C–J.

FIGURE 2. Detailed histology of Aetosaurus ferratus humerus A, B, E, SMNS 5770-21 and C, D, F, SMNS 5770-2. Arrows in E and F indicate the areas with higher organized tissue. cor, cortex; eb, endosteal bone; hb, hatchling bone; mc, medullary cavity; ola, osteocyte lacunae; pos, primary osteons; svc, simple vascular canals.

FIGURE 2. Detailed histology of Aetosaurus ferratus humerus A, B, E, SMNS 5770-21 and C, D, F, SMNS 5770-2. Arrows in E and F indicate the areas with higher organized tissue. cor, cortex; eb, endosteal bone; hb, hatchling bone; mc, medullary cavity; ola, osteocyte lacunae; pos, primary osteons; svc, simple vascular canals.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.